CJ2_ Operation Manual W472 E1 08

User Manual: W472-E1-08

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Cat. No. W472-E1-08

SYSMAC CJ Series
CJ2H-CPU6_-EIP,
CJ2H-CPU6_,
CJ2M-CPU_

CJ2 CPU Unit Hardware

USER’S MANUAL

 OMRON, 2008
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.

SYSMAC CJ Series
CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M-CPU@@
CJ2 CPU Unit Hardware
User’s Manual
Revised October 2010

Introduction
Thank you for purchasing a CJ-series CJ2H-CPU6@(-EIP) or CJ2M-CPU@@ Programmable Controller.
This manual contains information required to use the CJ2H-CPU6@(-EIP) and CJ2M-CPU@@. Please
thoroughly read and understand this manual before you use the CJ2H-CPU6@(-EIP).

Intended Audience
This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.

Applicable Products
CJ-series CJ2 CPU Units
• CJ2H-CPU6@-EIP
• CJ2H-CPU6@
• CJ2M-CPU3@
• CJ2M-CPU1@
In this manual, the following notation is used to indicate the CPU Units.
• CJ2H-CPU6@(-EIP): Indicates the CJ2H-CPU6@-EIP and CJ2H-CPU6@ CPU Units.
• CJ2M-CPU@@: Indicates the CJ2M-CPU3@ and CJ2M-CPU1@ CPU Units.
Optional Pulse I/O Modules can be used for pulse I/O with a CJ2M CPU Unit.
CJ2 Series
CJ2 CPU Units
CJ2H CPU Units
CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M CPU Units

NSJ Series
NSJ Controllers

CS1H-CPU@@H

NSJ5-SQ@@(B)-G5D

CS1G-CPU@@H

NSJ8-TV@@(B)-G5D
NSJ10-TV@@(B)-G5D
NSJ12-TS@@(B)-G5D

NSJ Controllers
NSJ5-TQ@@(B)-M3D
NSJ5-SQ@@(B)-M3D

CJ1-H CPU Units

CS1-H CPU Units

NSJ5-TQ@@(B)-G5D

CJ2M-CPU3@
CJ2M-CPU1@
Pulse I/O Module for
CJ2M CPU Units

CS Series

NSJ8-TV@@(B)-M3D

CS1D CPU Units
CS1D CPU Units
for Duplex Systems
CS1D-CPU@@H
CS1D CPU Units
for Simplex Systems
CS1D-CPU@@S
CS1D Process-control CPU Units

CJ1H-CPU@@H-R

CS1D-CPU@@P

CJ1H-CPU@@H
CJ1G-CPU@@H
CJ1G -CPU@@P
(Loop CPU Units)

CS1 CPU Units
CS1H-CPU@@(-V)

CJ1M CPU Units

CS1G-CPU@@(-V)

CJ1M-CPU@@
CS-series Basic I/O Units

CJ1 CPU Units

CS-series Special I/O Units

CJ1G-CPU@@

CJ-series Basic I/O Units

NSJ-series Expansion Units

CS-series CPU Bus Units
CS-series Power Supply Units

CJ-series Special I/O Units

Note: A special Power Supply Unit must
be used for CS1D CPU Units.

CJ-series CPU Bus Units
CJ-series Power Supply Units

CJ2 CPU Unit Hardware User’s Manual

CJ2 CPU Unit Manuals
Information on the CJ2 CPU Units is provided in the following manuals. Refer to the appropriate manual
for the information that is required.
This Manual

Mounting
and Setting
1 Hardware

CJ-series CJ2 CPU Unit
Hardware User’s Manual
(Cat. No. W472)

CJ-series CJ2 CPU Unit
Software User’s Manual
(Cat. No. W473)

CS/CJ/NSJ Series
Instructions Reference
Manual (Cat. No. W474)

• Unit part names and
specifications
• Basic system
configuration
• Unit mounting
procedure
• Setting procedure for
DIP switch and rotary
switches on the front of
the CPU Unit

2 Wiring

• Specifications and wiring
of Pulse I/O Modules
• Available pulse I/O
functions and allocations

For details on built-in
EtherNet/IP port, refer to
the EtherNet/IP Unit
Operation Manual (W465)

• Wiring the Power
Supply Unit
Connecting • Wring Basic I/O Units
and external I/O
Online to
devices

• Pulse I/O Module
specifications
• Wiring methods between
Pulse I/O Modules and
external I/O devices

3 the PLC

CX-Programmer Support
Software Connecting
Cables

Software
4 Setup

Procedures for connecting
the CX-Programmer
Support Software
Software setting methods for the
CPU Unit (including I/O memory
allocation, PLC Setup settings,
Special I/O Unit parameters,
CPU Bus Unit parameters, and
routing tables.)

Creating the
5 Program

For details on built-in EtherNet/IP
port, refer to the EtherNet/IP Unit
Operation Manual (W465).

• Program types and basic
information
• CPU Unit operation
• Internal memory
• Data management using
file memory in the CPU
Unit
• Built-in CPU functions
• Settings

Checking
and
Debugging
6 Operation

Maintenance
and
7 Troubleshooting

CJ2M CPU Unit Pulse
I/O Module User's
Manual (Cat. No. W486)

Detailed information
on programming
instructions

Software setting
procedures for Pulse I/O
Modules (I/O memory
allocations and PLC
Setup settings)

Pulse I/O functions

• Checking I/O wiring, setting the
Auxiliary Area settings, and
performing trial operation
• Monitoring and debugging with
the CX-Programmer

Error codes and
remedies if a problem
occurs

CJ2 CPU Unit Hardware User’s Manual

Manual Configuration
The CJ2 CPU manuals are organized in the sections listed in the following tables. Refer to the appropriate section in the manuals as required.

Hardware User’s Manual (Cat. No. W472) (This Manual)
Section
Section 1 Overview

Content
This section gives an overview of the CJ2 CPU Units and describes the features and
specifications.

Section 2 Basic System Configuration and Devices

This section describes the system configuration for the CJ2 CPU Unit.

Section 3 Nomenclature and
Functions

This section describes the part names and functions of the CPU Unit and Configuration
Units.

Section 4 Support Software

This section describes the types of Support Software to use to perform programming and
debugging and how to connect the PLC to the Support Software.

Section 5 Installation

This section describes the installation locations and how to wire CPU Units and Configuration Units.

Section 6 Troubleshooting

This section describes how to check the status for errors that occur during system operation and the remedies for those errors.

Section 7 Inspection and Maintenance

This section describes periodic inspection, the service life of the Battery and Power Supply Unit, and how to replace the Battery.

Section 8 Backup Operations

This section describes the procedure to back up PLC data.

Appendices

The appendices provide Unit dimensions, details on fatal and non-fatal errors, information on connecting to serial ports on the CPU Unit, the procedure for installing the USB
driver on a computer, and information on load short-circuit protection and line disconnection detection.

Software User’s Manual (Cat. No. W473)
Section
Section 1 Overview

Content
This section gives an overview of the CJ2 CPU Units and describes the features and
specifications.

Section 2 Internal Memory in the
CPU Unit

This section describes the types of memory in the CPU Unit and the data that is stored.

Section 3 CPU Unit Operation

This section describes the internal operation of the CPU Unit.

Section 4 CPU Unit Initialization

This section describes the initial setup of the CPU Unit.

Section 5 Understanding Programming

This section describes program types and programming details, such as symbols and
programming instructions.

Section 6 I/O Memory Areas

This section describes the I/O memory areas in the CPU Unit.

Section 7 File Operations

This section describes the files that can be stored in the CPU Unit, the storage destination for those files, and file operations.

Section 8 I/O Allocations and
Unit Settings

This section describes the I/O allocations used to exchange data between the CPU Unit
and other Units.

Section 9 PLC Setup

This section describes details on the PLC Setup settings, which are used to perform
basic settings for the CPU Unit.

Section 10 CPU Unit Functions

This section describes functions that are built into the CPU Unit.

Section 11 Programming Devices
and Communications

This section describes the procedure for connecting the CJ2 CPU Unit to the CX-Programmer or other Support Software and to other devices.

Section 12 CPU Unit Cycle Time

This section describes how to monitor and calculate the cycle time.

Appendices

The appendices provide information on programming instructions, execution times, number of steps, Auxiliary Area words and bits, a memory map of the continuous PLC memory addresses, I/O memory operation when power is interrupted, and a comparison of
CJ-series and CS-series PLCs.

CJ2 CPU Unit Hardware User’s Manual

Instructions Reference Manual (Cat. No. W474)
Section

Content

Section 1 Basic Understanding
of Instructions

This section provides basic information on designing ladder programs for a CS/CJ/NSJseries CPU Unit.

Section 2 Summary of Instructions

This section provides a summary of instructions used with a CS/CJ/NSJ-series CPU
Unit.

Section 3 Instructions

This section describes the functions, operands and sample programs of the instructions
that are supported by a CS/CJ/NSJ-series CPU Unit.

Section 4 Instruction Execution
Times and Number of Steps

This section provides the instruction execution times for each CS/CJ/NSJ-series CPU
Unit instruction.

Appendices

The appendices provide a list of instructions by function code and by mnemonic and an
ASCII table for the CS/CJ/NSJ-series CPU Units.

Pulse I/O Module User's Manual (Cat. No. W486)
Section

Content

Section 1 Overview

This section gives an overview of the Pulse I/O Modules and the pulse I/O functions of
the CJ2M.

Section 2 I/O Application Procedures and Function Allocations

This section lists the pulse functions of the CJ2M CPU Units and describes the overall
application flow and the allocation of the functions.

Section 3 I/O Specifications and
Wiring for Pulse I/O Modules

This section provides the I/O specifications and describes the wiring of the Pulse I/O
Module.

Section 4 General-purpose I/O

This section describes the general-purpose I/O.

Section 5 Quick-response Inputs

This section describes the quick-response function that can be used to input signals that
are shorter than the cycle time.

Section 6 Interrupts

This section describes the interrupt input function.

Section 7 High-speed Counters

This section describes the high-speed counter inputs and high-speed counter interrupts.

Section 8 Pulse Outputs

This section describes positioning functions, such as trapezoidal control, S-curve control,
jogging, and origin search functions.

Section 9 PWM Outputs

This section describes the variable-duty-factor (PWM) outputs.

Appendices

The appendices provide a table of flag changes for pulse outputs, a comparison table
with other models, and a performance table.

CJ2 CPU Unit Hardware User’s Manual

Manual Structure
Page Structure
The following page structure is used in this manual.
Level 1 heading
Level 2 heading
Level 3 heading

5 Installation

Level 2 heading
Level 3 heading

5-2
5-2-1

Installation

Gives the current
headings.

Connecting PLC Components
The Units that make up a CJ-series PLC can be connected simply by pressing the Units together and
locking the sliders by moving them toward the back of the Units. The End Cover is connected in the
same way to the Unit on the far right side of the PLC.

A step
in a procedure

1. Join the Units so that the connectors fit exactly.
Hook

Hook holes
Connector

5-2 Installation

5
toward the back of the Units as shown below until they click into place.
Move the sliders toward the back
until they lock into place.

Lock
Release

Slider

Special Information
(See below.)

Manual name

5 - 2 - 1 C o n n e c t i n g PL C C o m p o n e n t s

2. The yellow sliders at the top and bottom of each Unit lock the Units together. Move the sliders

Page tab
Gives the number
of the section.

Precautions for Correct Use
If the locking tabs are not secured properly, the connectors may become loose and not function
properly. Be sure to slide the locking tabs until they are securely in place.

CJ2 CPU Unit Hardware User’s Manual

5-13

This illustration is provided only as a sample and may not literally appear in this manual.

Special Information
Special information in this manual is classified as follows:

Precautions for Safe Use
Precautions on what to do and what not to do to ensure using the product safely.
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional Information
Additional information to increase understanding or make operation easier.

CJ2 CPU Unit Hardware User’s Manual

Sections in this Manual

Overview

Basic System Configuration and Devices

1
2
3

Nomenclature and Functions

Support Software

Installation

Troubleshooting

Inspection and Maintenance

Backup Operations

Appendices

CJ2 CPU Unit Hardware User’s Manual

CONTENTS
Introduction............................................................................................................... 1
CJ2 CPU Unit Manuals ............................................................................................. 2
Manual Structure ...................................................................................................... 5
Sections in this Manual............................................................................................ 7
Safety Precautions ................................................................................................. 17
Application Precautions......................................................................................... 21
Operating Environment Precautions .................................................................... 26
Regulations and Standards ................................................................................... 27
Unit Versions of CJ2 CPU Units ............................................................................ 29
Related Manuals ..................................................................................................... 35

Section 1
1-1

Overview
Overview of CJ2 CPU Units .................................................................................................... 1-2
1-1-1
1-1-2

Overview..................................................................................................................................... 1-2
CJ2 CPU Unit Features .............................................................................................................. 1-4

1-2

Basic Operating Procedure .................................................................................................. 1-12

1-3

Specifications ........................................................................................................................ 1-13
1-3-1
1-3-2
1-3-3

Section 2
2-1

Basic System Configuration and Devices
Basic System Configuration................................................................................................... 2-2
2-1-1
2-1-2
2-1-3
2-1-4
2-1-5
2-1-6

2-2

General Specifications.............................................................................................................. 1-13
Performance Specifications ...................................................................................................... 1-14
Function Specifications............................................................................................................. 1-21

Basic System Configuration........................................................................................................ 2-2
CPU Rack ................................................................................................................................... 2-3
Expansion Racks ...................................................................................................................... 2-11
Configuration Units ................................................................................................................... 2-14
Calculating Unit Current Consumption ..................................................................................... 2-22
Calculating Power Consumption............................................................................................... 2-25

Expanded System Configuration ......................................................................................... 2-27
2-2-1
2-2-2

Serial Communications............................................................................................................. 2-27
Communications Networks ....................................................................................................... 2-29

CJ2 CPU Unit Hardware User’s Manual

Section 3
3-1

Nomenclature and Functions
CPU Units ................................................................................................................................. 3-2
3-1-1
3-1-2

3-2

Memory Card.......................................................................................................................... 3-13
3-2-1
3-2-2
3-2-3

3-3

Section 4

Support Software..................................................................................................................... 4-2

Section 5
5-2

Fail-safe Circuits ...................................................................................................................... 5-2
Installation................................................................................................................................ 5-4
Installation and Wiring Precautions............................................................................................. 5-4
Installation in a Control Panel ..................................................................................................... 5-6
Assembled Appearance and Dimensions ................................................................................... 5-8
Connecting PLC Components................................................................................................... 5-13
DIN Track Installation ................................................................................................................ 5-15
Connecting CJ-series Expansion Racks ................................................................................... 5-17

Wiring ..................................................................................................................................... 5-20
5-3-1
5-3-2
5-3-3
5-3-4
5-3-5
5-3-6
5-3-7

Connecting by USB..................................................................................................................... 4-5
Connecting by RS-232C ............................................................................................................. 4-7
Connecting to Ethernet (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) ...................................... 4-9

Installation

5-2-1
5-2-2
5-2-3
5-2-4
5-2-5
5-2-6

5-3

CX-One FA Integrated Tool Package .......................................................................................... 4-2

Connection Methods ............................................................................................................... 4-5
4-2-1
4-2-2
4-2-3

5-1

Component Names ................................................................................................................... 3-32
System Configuration................................................................................................................ 3-32

Support Software
4-1-1

4-2

Basic I/O Units with Terminal Blocks......................................................................................... 3-28
Thirty-two/Sixty-four-point Basic I/O Units with Connectors...................................................... 3-30

I/O Control Units and I/O Interface Units ............................................................................. 3-32
3-7-1
3-7-2

4-1

Models and Specifications ........................................................................................................ 3-21
Components.............................................................................................................................. 3-24
Selecting a Power Supply Unit .................................................................................................. 3-27

CJ-series Basic I/O Units ...................................................................................................... 3-28
3-6-1
3-6-2

3-7

Overview ................................................................................................................................... 3-20

Power Supply Units ............................................................................................................... 3-21
3-5-1
3-5-2
3-5-3

3-6

Models and Specifications ........................................................................................................ 3-17
Part Names and Functions........................................................................................................ 3-17

Serial Option Boards (CJ2M-CPU3@ Only) ......................................................................... 3-20
3-4-1

3-5

Models and Specifications ........................................................................................................ 3-13
Operating Procedures ............................................................................................................... 3-13
Installing and Removing............................................................................................................ 3-14

Pulse I/O Modules (CJ2M CPU Unit Only) ........................................................................... 3-17
3-3-1
3-3-2

3-4

CPU Section................................................................................................................................ 3-2
Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) ............................... 3-8

Power Supply Wiring ................................................................................................................. 5-20
Wiring CJ-series Basic I/O Units with Terminal Blocks ............................................................. 5-27
Wiring Basic I/O Units with Connectors .................................................................................... 5-29
Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals ................. 5-33
Connecting Pulse I/O Modules to External I/O Devices (CJ2M CPU Unit Only)....................... 5-33
Connecting I/O Devices ............................................................................................................ 5-35
Connecting through an Ethernet Cable (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)............ 5-39

CJ2 CPU Unit Hardware User’s Manual

5-4

Control Panel Installation ..................................................................................................... 5-42
5-4-1
5-4-2
5-4-3
5-4-4
5-4-5
5-4-6

Section 6
6-1

Troubleshooting
CPU Unit Errors ....................................................................................................................... 6-2
6-1-1
6-1-2
6-1-3
6-1-4
6-1-5
6-1-6
6-1-7

6-2

Section 7

Inspections............................................................................................................................... 7-2
Inspection Points ........................................................................................................................ 7-2
Unit Replacement Precautions ................................................................................................... 7-4

Replacing the Battery.............................................................................................................. 7-5
7-2-1
7-2-2

7-3

Error Causes and Remedies .................................................................................................... 6-28

Inspection and Maintenance
7-1-1
7-1-2

7-2

Checking Built-in EtherNet/IP Port Error Status ....................................................................... 6-25
Checking Error Status at the EtherNet/IP Port Seven-segment Display................................... 6-26

Non-CPU Unit Errors and Remedies.................................................................................... 6-28
6-3-1

7-1

Errors and Remedies.................................................................................................................. 6-2
Checking Errors .......................................................................................................................... 6-2
Checking Detailed Status ........................................................................................................... 6-3
Reading Error Log Information ................................................................................................... 6-3
I/O Table Verification................................................................................................................... 6-5
Types of Errors............................................................................................................................ 6-6
Handling Errors........................................................................................................................... 6-7

Troubleshooting Built-in EtherNet/IP Port Errors
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)........................................................................ 6-25
6-2-1
6-2-2

6-3

Temperature.............................................................................................................................. 5-42
Humidity.................................................................................................................................... 5-44
Vibration and Shock.................................................................................................................. 5-44
Atmosphere .............................................................................................................................. 5-44
Electrical Environment .............................................................................................................. 5-45
Grounding ................................................................................................................................. 5-50

Battery Replacement .................................................................................................................. 7-5
Operation When Battery Is Exhausted or Not Installed .............................................................. 7-8

Power Supply Unit Replacement Time ................................................................................ 7-10

Section 8

Backup Operations

8-1

Backing Up Data ...................................................................................................................... 8-2

8-2

Using a Computer to Back Up Data ....................................................................................... 8-3
8-2-1
8-2-2

8-3

PLC Backup Tool ........................................................................................................................ 8-3
PLC Backup Tool Operations...................................................................................................... 8-4

Simple Backup ......................................................................................................................... 8-7
8-3-1
8-3-2
8-3-3
8-3-4
8-3-5
8-3-6

Overview..................................................................................................................................... 8-7
Operating Procedures................................................................................................................. 8-8
Verifying Backup Operations with Indicators ............................................................................ 8-10
Related Auxiliary Bits/Words .................................................................................................... 8-12
Time Required for Simple Backup ............................................................................................ 8-12
Data Backed Up Using Simple Backup..................................................................................... 8-12

CJ2 CPU Unit Hardware User’s Manual

Appendices
A-1 Specifications of Basic I/O Units ...........................................................................................A-2
A-1-1
A-1-2
A-1-3
A-1-4

Overview of Units ........................................................................................................................A-2
Basic I/O Units ............................................................................................................................A-5
Precautions on Contact Output Units........................................................................................A-57
Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals ..................A-59

A-2 Dimensions ............................................................................................................................A-94
A-2-1
A-2-2
A-2-3
A-2-4
A-2-5
A-2-6
A-2-7
A-2-8

CJ2H CPU Units .......................................................................................................................A-94
CJ2M CPU Units .......................................................................................................................A-95
Power Supply Units ...................................................................................................................A-96
Basic I/O Units ..........................................................................................................................A-98
I/O Control Unit and I/O Interface Unit ....................................................................................A-101
I/O Memory Card ....................................................................................................................A-101
Pulse I/O Modules (CJ2M CPU Unit Only)..............................................................................A-101
Serial Option Boards (CJ2M-CPU3@ Only)............................................................................A-102

A-3 Fatal and Non-fatal Error Details ........................................................................................A-103
A-3-1
A-3-2

Fatal Errors .............................................................................................................................A-103
Non-fatal Errors.......................................................................................................................A-108

A-4 Connecting to a Serial Port on the CPU Unit ....................................................................A-111
A-4-1
A-4-2
A-4-3

Serial Port Interface Types and Specifications........................................................................A-111
Connection Examples .............................................................................................................A-117
Applicable Connectors and Recommended Cables................................................................A-132

A-5 Installing the USB Driver ....................................................................................................A-139
A-6 Load Short-circuit Protection and Line Disconnection Detection for Basic I/O Units ..A-149
A-6-1
A-6-2

Load Short-circuit Protection and Line Disconnection Detection for CJ1W-OD202................A-149
Load Short-circuit Protection for CJ1W-OD204/OD212/OD232/MD232 .................................A-151

A-7 Relay Output Noise Reduction Methods ...........................................................................A-153
A-8 Functions Supported for Unit Versions.............................................................................A-155
A-8-1
A-8-2

CJ2H CPU Units .....................................................................................................................A-155
CJ2M CPU Units .....................................................................................................................A-156

Index ................................................................................................................ Index-1
Revision History ........................................................................................Revision-1

CJ2 CPU Unit Hardware User’s Manual

Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON representative
if you have any questions or comments.

Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

CJ2 CPU Unit Hardware User’s Manual

Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.

CJ2 CPU Unit Hardware User’s Manual

Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be changed
without any notice. When in doubt, special model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.

PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does
not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.

ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

CJ2 CPU Unit Hardware User’s Manual

Safety Precautions
Definition of Precautionary Information
The following notation is used in this manual to provide precautions required to ensure safe usage of a
CJ-series PLC. The safety precautions that are provided are extremely important to safety. Always read
and heed the information provided in all safety precautions.

WARNING

Caution

Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury. Additionally, there may be
severe property damage.

Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury, or property damage.

Precautions for Safe Use
Indicates precautions on what to do and what not to do to ensure using the product safely.

Precautions for Correct Use
Indicates precautions on what to do and what not to do to ensure proper operation and performance.

CJ2 CPU Unit Hardware User’s Manual

Symbols

The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in
text. This example indicates a precaution for electric shock.

The circle and slash symbol indicates operations that you must
not do. The specific operation is shown in the circle and
explained in text.

The filled circle symbol indicates operations that you must do.
The specific operation is shown in the circle and explained in
text. This example shows a general precaution for something
that you must do.

The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in
text. This example indicates a general precaution.

The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in
text. This example indicates a precaution for hot surfaces.

CJ2 CPU Unit Hardware User’s Manual

WARNING
Do not attempt to take any Unit apart or touch the inside of any Unit while the
power is being supplied. Doing so may result in electric shock.

Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.

Provide safety measures in external circuits (i.e., not in the Programmable
Controller), including the following items, to ensure safety in the system if an
abnormality occurs due to malfunction of the Programmable Controller or
another external factor affecting the operation of the Programmable Controller. “Programmable Controller” indicates the CPU Unit and all other Units and
is abbreviated “PLC” in this manual. Not doing so may result in serious accidents.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
• The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
Unexpected operation, however, may still occur for errors in the I/O control
section, errors in I/O memory, and other errors that cannot be detected by
the self-diagnosis function. As a countermeasure for all such errors, external safety measures must be provided to ensure safety in the system.
• The PLC outputs may remain ON or OFF due to deposition or burning of
the output relays or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided to
ensure safety in the system.
• Provide measures in the computer system and programming to ensure
safety in the overall system even if communications errors or malfunctions
occur in data link communications or remote I/O communications.

Confirm safety before transferring data files stored in the file memory (Memory Card or EM file memory) to the I/O area (CIO) of the CPU Unit using a
peripheral tool. Otherwise, the devices connected to the output unit may malfunction regardless of the operation mode of the CPU Unit.

Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal
lines, momentary power interruptions, or other causes. Serious accidents
may result from abnormal operation if proper measures are not provided.

CJ2 CPU Unit Hardware User’s Manual

Caution
Execute online edit only after confirming that no adverse effects will be
caused by extending the cycle time. Otherwise, the input signals may not be
readable.

Confirm safety at the destination node before transferring a program, PLC
Setup, I/O tables, I/O memory contents, or parameters to another node or
changing contents of the any of these items. Transferring or changing data
can result in unexpected system operation.

The CJ2 CPU Units automatically back up the user program and parameter
data to flash memory when these are written to the CPU Unit. I/O memory
including the DM, EM, and Holding Areas), however, is not written to flash
memory.
The DM, EM, and Holding Areas can be held during power interruptions with
a battery. If there is a battery error, the contents of these areas may not be
accurate after a power interruption. If the contents of the DM, EM, and Holding Areas are used to control external outputs, prevent inappropriate outputs
from being made whenever the Battery Error Flag (A402.04) is ON.

Tighten the terminal screws on the AC Power Supply Unit to the torque specified in the operation manual. The loose screws may result in burning or malfunction.

Do not touch the Power Supply Unit when power is being supplied or immediately after the power supply is turned OFF. The Power Supply Unit will be hot
and you may be burned.

When connecting a personal computer or other peripheral device to a PLC to
which a non-insulated Power Supply Unit (CJ1W-PD022) is mounted, either
ground the 0 V side of the external power supply or do not ground the external power supply at all ground. A short-circuit will occur in the external power
supply if incorrect grounding methods are used. Never ground the 24 V side,
as shown below.
Wiring in Which the 24-V Power Supply Will Short
Non-insulated
24 V DC power supply
Peripheral
cable

Power Supply
Unit

CPU Unit

Peripheral device (e.g.,
personal computer)

CJ2 CPU Unit Hardware User’s Manual

Application Precautions
Observe the following precautions when using a CJ-series PLC.

z Power Supply
• Always use the power supply voltages specified in the user’s manuals. An incorrect voltage may
result in malfunction or burning.
• Exceeding the capacity of the Power Supply Unit may prevent the CPU Unit or other Units from
starting.
• Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.
• Always turn OFF the power supply to the PLC before attempting any of the following. Not turning
OFF the power supply may result in malfunction or electric shock.
• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, Option Boards, Pulse I/O
Modules or any other Units.
• Assembling the Units.
• Setting DIP switches or rotary switches.
• Connecting cables or wiring the system.
• Connecting or disconnecting the connectors.
• When cross-wiring terminals, the total current for all the terminal will flow in the wire. Make sure
that the current capacity of the wire is sufficient.
• Observe the following precautions when using a Power Supply Unit that supports the Replacement Notification Function.
• Replace the Power Supply Unit within six months if the display on the front of the Power Supply Unit alternates between 0.0 and A02, or if the alarm output automatically turns OFF.
• Keep the alarm output cable separated from power line and high-voltage lines.
• Do not apply a voltage or connect a load exceeding the specifications to the alarm output.
• When storing the Power Supply Unit for more than three months, store it at −20 to 30°C and
25% to 70% humidity to preserve the Replacement Notification Function.
• If the Power Supply Unit is not installed properly, heat buildup may cause the replacement notification signal to appear at the wrong time or may cause interior elements to deteriorate or
become damaged. Use only the standard installation method.
• Do not touch the terminals on the Power Supply Unit immediately after turning OFF the power
supply. Residual voltage may cause electrical shock.
• Observe the following precautions to prevent failure due to difference in electrical potential if the
computer is connected to the PLC.
• Before connecting a laptop computer to the PLC, disconnect the power supply plug of the
computer from the AC outlet. Residual current in the AC adaptor may cause difference in electrical potential to occur between the computer and the PLC. After you connect the computer
and PLC, supply the power again from the AC adaptor.
• If the computer has an FG terminal, make the connections so that it has the same electrical
potential as the FG (GR) terminal on the PLC.
• If the computer is grounded to a separate location, difference in electrical potential may occur
depending on the grounding conditions.

z Installation
• Do not install the PLC near sources of strong high-frequency noise.
• Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any
static build-up. Not doing so may result in malfunction or damage.

CJ2 CPU Unit Hardware User’s Manual

• Be sure that the terminal blocks, connectors, Memory Cards, Option Boards, Pulse I/O Modules,
expansion cables, and other items with locking devices are properly locked into place.
• The sliders on the tops and bottoms of the Power Supply Unit, CPU Unit, I/O Units, Special I/O
Units, CPU Bus Units, and Pulse I/O Modules must be completely locked (until they click into
place) after connecting to adjacent Units.
The Unit may not operate properly if the sliders are not locked in place.

z Wiring
• Follow the instructions in this manual to correctly perform wiring.
• Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring
may result in burning.
• Be sure that all terminal screws, and cable connector screws are tightened to the torque specified
in the relevant manuals. Incorrect tightening torque may result in malfunction.
• Mount terminal blocks and connectors only after checking the mounting location carefully.
• Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if
foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the
label attached may result in malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection of bare stranded wires may result in burning.
• Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may
result in burning.
• Always connect to a ground of 100 Ω or less when installing the Units. Not connecting to a ground
of 100 Ω or less may result in electric shock.
A ground of 100 Ω or less must be installed when shorting the GR and LG terminals on the Power
Supply Unit.
• Do not apply voltages or connect loads to the Output Units in excess of the maximum switching
capacity. Excess voltage or loads may result in burning.
• Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may
break the cables.
• Do not place objects on top of the cables or other wiring lines. Doing so may break the cables.
• Do not use commercially available RS-232C personal computer cables. Always use the special
cables listed in this manual or make cables according to manual specifications. Using commercially available cables may damage the external devices or CPU Unit.
• Never connect pin 6 (5-V power supply) on the RS-232C port on the CPU Unit to any device other
than an NT-AL001 Link Adapter, CJ1W-CIF11 Converter, and Programmable Terminals (NV3WM@20L). The external device or the CPU Unit may be damaged.

z Handling
• The Power Supply Unit may possibly be damaged if the entire voltage for a dielectric strength test
is applied or shut OFF suddenly using a switch. Use a variable resistor to gradually increase and
decrease the voltage.
• Separate the line ground terminal (LG) from the functional ground terminal (GR) on the Power
Supply Unit before performing withstand voltage tests or insulation resistance tests. Not doing so
may result in burning.
• Make sure that the DIP switches and DM Area are set correctly before starting operation.
• After replacing the CPU Unit, a Special I/O Unit, or a CPU Bus Unit, make sure that the required
data for the DM Area, Holding Area, and other memory areas has been transferred to the new
Unit before restarting operation.
• Confirm that no adverse effect will occur in the system before attempting any of the following. Not
doing so may result in an unexpected operation.
• Changing the operating mode of the PLC (including the setting of the startup operating mode).
• Force-setting/force-resetting any bit in memory.
22

CJ2 CPU Unit Hardware User’s Manual

• Changing the present value of any word or any set value in memory.
• Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.
• Do not drop the PLC or subject abnormal vibration or shock to it.
• The life of the battery will be reduced if the PLC is left for a period of time without a battery
installed and without power supply, and then a battery is installed without turning ON the power
supply.
• Replace the battery as soon as a battery error occurs or as soon as the specified battery backup
time expires. Be sure to install a replacement battery within two years of the production date
shown on the battery's label.
• Before replacing the battery, turn ON power for at least 5 minutes before starting the replacement
procedure and complete replacing the battery within 5 minutes of turning OFF the power supply.
Memory contents may be corrupted if this precaution is not obeyed.
• If the Battery Error Flag is used in programming the application, confirm system safety even if the
system detects a battery error before you replace the battery while the power is ON.
• Do not short the battery terminals or charge, disassemble, heat, or incinerate the battery. Do not
subject the battery to strong shocks. Doing any of these may result in leakage, rupture, heat generation, or ignition of the battery. Dispose of any battery that has been dropped on the floor or otherwise subjected to excessive shock. Batteries that have been subjected to shock may leak if they
are used.
• UL standards require that only an experienced engineer can replace the battery. Make sure that
an experienced engineer is in charge of battery replacement. Follow the procedure for battery
replacement given in this manual.
• Dispose of the product and batteries according to local ordinances as they apply.

• If the I/O Hold Bit is turned ON, the outputs from the PLC will not be turned OFF and will maintain
their previous status when the PLC is switched from RUN or MONITOR mode to PROGRAM
mode. Make sure that the external loads will not produce dangerous conditions when this occurs.
(When operation stops for a fatal error, including those produced with the FALS(007) instruction,
all outputs from Output Unit will be turned OFF and only the internal output status will be maintained.)
• Unexpected operation may result if inappropriate data link tables or parameters are set. Even if
appropriate data link tables and parameters have been set, confirm that the controlled system will
not be adversely affected before starting or stopping data links.
• Write programs so that any data that is received for data link communications is used only if there
are no errors in the CPU Units that are the sources of the data. Use the CPU Unit error information in the status flags to check for errors in the source CPU Units. If there are errors in source
CPU Units, they may send incorrect data.
• All CPU Bus Units will be restarted when routing tables are transferred from a Programming
Device to the CPU Unit. Restarting these Units is required to read and enable the new routing
tables. Confirm that the system will not be adversely affected before transferring the routing
tables.
• Tag data links will stop between related nodes while tag data link parameters are being transferred during PLC operation. Confirm that the system will not be adversely affected before transferring the tag data link parameters.
• If there is interference with network communications, output status will depend on the devices that
are being used. When using devices with outputs, confirm the operation that will occur when there
is interference with communications, and implement safety measures as required.

CJ2 CPU Unit Hardware User’s Manual

• When creating an AUTOEXEC.IOM file from a Programming Device (a Programming Console or
the CX-Programmer) to automatically transfer data at startup, set the first write address to
D20000 and be sure that the size of data written does not exceed the size of the DM Area. When
the data file is read from the Memory Card at startup, data will be written in the CPU Unit starting
at D20000 even if another address was set when the AUTOEXEC.IOM file was created. Also, if
the DM Area is exceeded (which is possible when the CX-Programmer is used), the remaining
data will be written to the EM Area.
• The user program and parameter area data in the CJ2 CPU Units are backed up in the built-in
flash memory. The BKUP indicator will light on the front of the CPU Unit when the backup operation is in progress. Do not turn OFF the power supply to the CPU Unit when the BKUP indicator is
lit. The data will not be backed up if power is turned OFF.
• Check the user program and Unit parameter settings for proper execution before actually running
them on the Unit. Not checking the program and parameter settings may result in an unexpected
operation.
• When setting a Special I/O Unit or CPU Bus Unit in the I/O tables, carefully check the safety of the
devices at the connection target before restarting the Unit.
• Do not turn OFF the power supply to the PLC when reading or writing a Memory Card. Also, do
not remove the Memory Card when the BUSY indicator is lit. Doing so may make the Memory
Card unusable.
To remove a Memory Card, first press the memory card power supply switch and then wait for the
BUSY indicator to go out before removing the Memory Card.
• When restoring data, carefully check that the selected data is the correct data to be restored
before executing the restore operation. Depending on the contents of the selected data, the control system may operate unexpectedly after the data is restored.
• Some Special I/O Units and CPU Bus Units operate with parameters stored in the CPU Unit (e.g.,
words allocated in DM Area, data link tables, or Ethernet settings). Information on restrictions will
be displayed in the Information Area in the PLC Backup Tool if there are any restrictions for the
selected CPU Bus Unit or Special I/O Unit. Check the restrictions, and then be sure to select both
the CPU Unit and the CPU Bus Unit or Special I/O Unit when backing up or restoring data. The
control system may operate unexpectedly if the equipment is started with the data backed up or
restored without selecting both Units.
• Information on restrictions will be displayed in the Information Area in the PLC Backup Tool if the
data to be stored includes a Unit that has restrictions on backup. Check the information on restrictions and take the required countermeasures. The control system may operate unexpectedly
when the equipment is operated after the data is restored
• Before restoring data during PLC operation, be sure that there will be no problem if PLC operation
stops. If the PLC stops at an unexpected time, the control system may operate unexpectedly.
• Be sure to turn the PLC power supply OFF and then back ON after restoring data. If the power is
not reset, the system may not be updated with the restored data, and the control system may
operate unexpectedly.
• Data on forced status can be backed up but it cannot be restored. Perform the procedure to forceset or force-reset bits from the CX-Programmer as required before starting operation after restoring data that includes forced status. Depending on the difference in the forced status, the control
system may operate unexpectedly.
• If a symbol or memory address (only symbols are allowed for ST programming) is specified for the
suffix of an array variable in ladder or ST programming, be sure that the specified element number
does not exceed the maximum memory area range.
Specifying an element number that exceeds the maximum range of the memory area specified for
the symbol will result accessing data in a different memory area, and may result in unexpected
operation.
• If a symbol or address is specified for an offset in a ladder diagram, program so that the memory
area of the start address is not exceeded when the offset is specified indirectly using a word
address or symbol.
If an indirect specification causes the address to exceed the area of the start address, the system
will access data in other area, and unexpected operation may occur.

CJ2 CPU Unit Hardware User’s Manual

z External Circuits
• Always turn ON power to the PLC before turning ON power to the control system. If the PLC
power supply is turned ON after the control power supply, temporary errors may result in control
system signals because the output terminals on DC Output Units and other Units will momentarily
turn ON when power is turned ON to the PLC.
• Install external breakers and take other safety measures against short-circuiting in external wiring.
Insufficient safety measures against short-circuiting may result in burning.

CJ2 CPU Unit Hardware User’s Manual

Operating Environment Precautions
z Follow the instructions in this manual to correctly perform installation.

z Do not operate the control system in the following locations:
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified in the specifications.
• Locations subject to condensation as the result of severe changes in temperature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.

z Take appropriate and sufficient countermeasures when installing systems in the
following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.

CJ2 CPU Unit Hardware User’s Manual

Regulations and Standards
Conformance to EC Directives
Applicable Directives
• EMC Directives
• Low Voltage Directive

Concepts
z EMC Directives
OMRON devices that comply with EC Directives also conform to the related EMC standards so that
they can be more easily built into other devices or the overall machine. The actual products have
been checked for conformity to EMC standards (see the following note). Whether the products conform to the standards in the system used by the customer, however, must be checked by the customer.
EMC-related performance of the OMRON devices that comply with EC Directives will vary depending on the configuration, wiring, and other conditions of the equipment or control panel on which the
OMRON devices are installed.
The customer must, therefore, perform the final check to confirm that devices and the overall
machine conform to EMC standards.
* Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility):
CS Series: EN 61131-2 and EN 61000-6-2
CJ Series: EN 61000-6-2
* EMI (Electromagnetic Interference):
EN 61000-6-4 (Radiated emission: 10-m regulations)

z Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to 1,500 VDC meet the
required safety standards for the PLC (EN 61131-2).

z Conformance to EC Directives
The CJ-series PLCs comply with EC Directives. To ensure that the machine or device in which the
CJ-series PLC is used complies with EC Directives, the PLC must be installed as follows:
• The CJ-series PLC must be installed within a control panel.
• You must use reinforced insulation or double insulation for the DC power supplies connected to
DC Power Supply Units and I/O Units.
• CJ-series PLCs complying with EC Directives also conform to the Common Emission Standard
(EN 61000-6-4). Radiated emission characteristics (10-m regulations) may vary depending on the
configuration of the control panel used, other devices connected to the control panel, wiring, and
other conditions. You must therefore confirm that the overall machine or equipment complies with
EC Directives.

CJ2 CPU Unit Hardware User’s Manual

Conformance to Shipbuilding Standards
This product conforms to the following shipbuilding standards. Applicability to the shipbuilding standards is based on certain usage conditions. It may not be possible to use the product in some locations. Contact your OMRON representative before attempting to use a PLC on a ship.

Usage Conditions for NK and LR Shipbuilding Standards
z Usage Conditions for Applications Other Than on the Bridge or Deck
• The PLC must be installed in a control panel.
• Gaps in the door to the control panel must be completely filled or covered with gaskets or other
material.

z Usage Conditions for Bridge and Deck (Certified Only by NK)
• The PLC must be installed in a control panel.
• Gaps in the door to the control panel must be completely filled or covered with gaskets or other
material.
• The following noise filter must be connected to the power supply line.
Noise Filter
Manufacturer
Model

Cosel Co., Ltd.
TAH-06-683

Trademarks
SYSMAC is a registered trademark for Programmable Controllers made by OMRON Corporation.
CX-One is a registered trademark for Programming Software made by OMRON Corporation.
Windows is a registered trademark of Microsoft Corporation.
Other system names and product names in this document are the trademarks or registered trademarks
of their respective companies.

CJ2 CPU Unit Hardware User’s Manual

Unit Versions of CJ2 CPU Units
Unit Versions
A “unit version” has been introduced to manage CJ2 CPU Units according to differences in functionality
accompanying version upgrades.

Notation of Unit Versions on Products
The unit version is given to the right of the lot number on the nameplate of the products for which unit
versions are being managed, as shown below.
CJ2 CPU Unit

CJ2H-CPU68-EIP
CPU UNIT

Indicates the unit version of
the CPU Unit (example: unit
version 1.1).

Lot No.

Lot No. 090115 0008 CPU.Ver.1.1 EIP.Ver.1.1
OMRON Corporation

Indicates the unit version of
the built-in EtherNet/IP port
(CJ2H-CPU6@-EIP only)
(example: unit version 1.1).

MADE IN JAPAN

Confirming Unit Versions with Support Software
CX-Programmer can be used to confirm the unit version using one of the following two methods.
• Using the PLC Information
• Using the Unit Manufacturing Information (This method can be used for Special I/O Units and CPU
Bus Units as well.)

z PLC Information

Use one of the following methods to display the PLC Information Dialog Box.

• If you know the device type and CPU type, select them in the Change PLC Dialog Box, go online,
and select PLC - Edit - Information from the menus.
• If you don't know the device type and CPU type, but are connected directly to the CPU Unit on a
serial line, select PLC - Auto Online to go online, and then select PLC - Edit - Information from
the menus.

CJ2 CPU Unit Hardware User’s Manual

In either case, the following PLC Information Dialog Box will be displayed.

Unit version

Use the above display to confirm the unit version of the CPU Unit.

z Unit Manufacturing Information

In the IO Table Window, right-click and select Unit Manufacturing information - CPU Unit.

CJ2 CPU Unit Hardware User’s Manual

The following Unit Manufacturing information Dialog Box will be displayed.

Unit version

Use the above display to confirm the unit version of the CPU Unit connected online.

Using the Unit Version Labels
The following unit version labels are provided with the CPU Unit.

Ver. 1.0
Ver. 1.0

These labels can be attached to the front of previous CPU Units to differentiate between CPU
Units of different unit versions.

CJ2 CPU Unit Hardware User’s Manual

Unit Versions
Item
CJ2H CPU Unit

Models
CJ2H-CPU6@-EIP

Unit version
Unit version 1.0 (Built-in EtherNet/IP section: Unit version 2.0)
Unit version 1.1 (Built-in EtherNet/IP section: Unit version 2.0)
Unit version 1.2 (Built-in EtherNet/IP section: Unit version 2.0)
Unit version 1.3 (Built-in EtherNet/IP section: Unit version 2.0)

CJ2H-CPU6@

Unit version 1.1
Unit version 1.2
Unit version 1.3

CJ2M CPU Unit

CJ2M-CPU3@

Unit version 1.0 (Built-in EtherNet/IP section: Unit version 2.0)
Unit version 2.0 (Built-in EtherNet/IP section: Unit version 2.0)
Unit version 2.0 (Built-in EtherNet/IP section: Unit version 2.1)

CJ2M-CPU1@

Unit version 1.0
Unit version 2.0

CJ2 CPU Unit Hardware User’s Manual

Unit Versions and Programming Devices
The following tables show the relationship between unit versions and CX-Programmer versions. Refer
to A-8 Functions Supported for Unit Versions for the functions supported by each unit version.

z Unit Versions and Programming Devices
Required Programming Device
CPU Unit

CJ2H

Ver. 7.1
or lower

Ver. 8.0

Ver. 8.2
or higher

Ver. 9.0

Ver. 9.1

Ver. 9.12
or higher

Programming
Console
---*3

CJ2H-CPU6@-EIP
Unit version 1.0

Functions for unit version 1.0

---

CJ2H-CPU6@-EIP
Unit version 1.1

Functions
added for unit
version 1.1

Using new
functions

---

OK*2

Not using new
functions

---

OK*1

Using new
functions

---

OK*2

Not using new
functions

---

Functions
added for unit
version 1.2

Using new
functions

---

Not using new
functions

---

OK*1

Functions
added for unit
version 1.2

Using new
functions

---

Not using new
functions

---

OK*1

Functions
added for unit
version 1.3

Using new
functions

---

Not using new
functions

---

OK*1

Functions
added for unit
version 1.3

Using new
functions

---

Not using new
functions

---

OK*1

CJ2H-CPU6@
Unit version 1.1

CJ2H-CPU6@-EIP
Unit version 1.2

CJ2H-CPU6@
Unit version 1.2

CJ2H-CPU6@-EIP
Unit version 1.3

CJ2H-CPU6@
Unit version 1.3

CJ2M

CX-Programmer

Functions

Functions
added for unit
version 1.1

CJ2M-CPU@@
Unit version 1.0

Functions for unit version 1.0

---

CJ2M-CPU@@
Unit version 2.0

Functions
added for unit
version 2.0

Using new
functions

---

Not using new
functions

---

OK*1

*1 It is not necessary to upgrade the version of the CX-Programmer if functionality that was enhanced for the
upgrade of the CPU Unit will not be used.
*2 CX-Programmer version 8.2 or higher is required to use the functions added for unit version 1.1. The highspeed interrupt function and changing the minimum cycle time setting in MONITOR mode, however, are also
supported by CX-Programmer version 8.02.
*3 A Programming Console cannot be used with a CJ2 CPU Unit.

z Pull-down List for PLC Models
Unit versions are not differentiated in the pull-down list for PLC models in the Change PLC Dialog
Box of the CX-Programmer. Select as shown in the following table regardless of the unit version.
Series
CJ Series

CPU Unit

Model number

PLC model in Change PLC Dialog Box in CX-Programmer version 9.0 or higher

CJ2H CPU Unit

CJ2H-CPU6@-EIP
CJ2H-CPU6@

CJ2H

CJ2M CPU Unit

CJ2M-CPU3@
CJ2M-CPU1@

CJ2M

CJ2 CPU Unit Hardware User’s Manual

Troubleshooting Problems with Unit Versions on the CX-Programmer
Problem

Cause

Solution

An attempt was made to download a program containing
instructions supported only by
later unit versions or a CPU Unit
to a previous unit version.

Check the program or change to
a CPU Unit with a later unit version.

An attempt was to download a
PLC Setup containing settings
supported only by later unit versions or a CPU Unit to a previous
unit version.

Check the settings in the PLC
Setup or change to a CPU Unit
with a later unit version.

An attempt was made to upload
a program containing instructions supported only by higher
versions of CX-Programmer to a
lower version.

New instructions cannot be
uploaded to lower versions of
CX-Programmer. Use a higher
version of CX-Programmer.

After the above message is displayed, a compiling
error will be displayed on the Compile Tab Page in the
Output Window.

“????” is displayed in a program transferred from the
PLC to the CX-Programmer.

CJ2 CPU Unit Hardware User’s Manual

Related Manuals
Manuals related to a PLC built using a CJ-series CJ2 CPU Unit are listed in the following table. Use
these manuals for reference.
Manual
CJ-series CJ2 CPU
Unit Hardware
User’s Manual (this
manual)

Cat. No.
W472

Model
CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M-CPU@@

Application
Hardware specifications for
CJ2 CPU Units

Description
Describes the following for CJ2 CPU Units:
• Overview and features
• Basic system configuration
• Part nomenclature and functions
• Mounting and setting procedure
• Remedies for errors
• Also refer to the Software User’s Manual
(W473).

CJ-series CJ2 CPU
Unit Software User’s
Manual

W473

CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M-CPU@@

Software specifications for
CJ2 CPU Units

Describes the following for CJ2 CPU Units:
• CPU Unit operation
• Internal memory
• Programming
• Settings
• Functions built into the CPU Unit
Also refer to the Hardware User’s Manual
(W472)

CS/CJ-series EtherNet/IP Units Operation Manual

W465

CJ-series CJ2M
CPU Unit Pulse I/O
Module User's Manual

W486

CJ2H-CPU6@-EIP
CJ2M-CPU3@
CS1W-EIP21
CJ1W-EIP21

Using the built-in EtherNet/IP port of the CJ2 CPU
Unit

Describes the built-in EtherNet/IP port and EtherNet/IP Units.

CJ2M-CPU@@

Information on using builtin I/O on CJ2M CPU Units

Provides the following information on the CJ2M
CPU Units:

+
CJ2M-MD21@

Describes basic settings, tag data links, FINS
communications, and other functions.

• Specifications and wiring methods
• I/O functions
• Quick-response inputs
• Interrupt functions
• High-speed counters
• Pulse outputs
• PWM outputs
When programming, use this manual together
with the Instructions Reference Manual (Cat.
No. W474).

CS/CJ/NSJ-series
Instructions Reference Manual

W474

CJ2H-CPU6@-EIP
CJ2H-CPU6@
CJ2M-CPU@@
CS1G/H-CPU@@H
CS1G/H-CPU@@-V1
CJ1G/H-CPU@@H
CJ1G-CPU@@
CJ1M-CPU@@
NSJ@-@@@@(B)-G5D
NSJ@-@@@@(B)-M3D

CJ2 CPU Unit Hardware User’s Manual

Information on instructions

Describes each programming instruction in
detail.
Also refer to the Software User’s Manual (W473)
when you do programming.

Manual
CS/CJ/CP/NSJseries Communications Command Reference Manual

Cat. No.
W342

Model

Application

CJ2H-CPU6@-EIP
CJ2H-CPU6@
CS1G/H-CPU@@H
CS1G/H-CPU@@-V1
CS1D-CPU@@H
CS1D-CPU@@S
CS1W-SCU@@-V1
CS1W-SCB@@-V1
CJ1H-CPU@@H-R
CJ1G/H-CPU@@H
CJ1G-CPU@@P
CJ1M-CPU@@
CJ1G-CPU@@
CJ1W-SCU@@-V1
CP1H-X@@@@-@
CP1H-XA@@@@-@
CP1H-Y@@@@-@
CP1L-M/L@@@-@@
CP1E-E/N@@D@-@
NSJ@-@@@@(B)-G5D
NSJ@-@@@@(B)-M3D

Information on communications for CS/CJ/CPseries CPU Units and NSJseries Controllers

Description
Describes C-mode commands and FINS commands
Refer to this manual for a detailed description of
commands for communications with the CPU
Unit using C mode commands or FINS commands.
Note This manual describes the communications commands that are addressed to
CPU Units. The communications path that
is used is not relevant and can include any
of the following: serial ports on CPU Units,
communications ports on Serial Communications Units/Boards, and Communications Units. For communications
commands addressed to Special I/O Units
or CPU Bus Units, refer to the operation
manual for the related Unit.

CX-One Setup Manual

W463

CXONE-AL@@CV@/AL@@D-V@

Installing software from the
CX-One

Provides an overview of the CX-One FA Integrated Tool Package and describes the installation procedure.

CX-Programmer
Operation Manual

W446

WS02-CX@@-V@

Support Software for Windows computers

Describes operating procedures for the CX-Programmer.

CX-Programmer
Operation Manual
Functions
Blocks/Structured
Text

W447
CX-Programmer operating
procedure

Also refer to the Software User’s Manual (W473)
and CS/CJ/NSJ-series Instructions Reference
Manual (W474) when you do programming.

CX-Programmer
Operation Manual
SFC Programming

W469

CS/CJ/CP/NSJseries CX-Simulator
Operation Manual

W366

CS/CJ/CP/NSJseries CX-Integrator
Network Configuration Software Operation Manual

W464

WS02-SIMC1-E

Operating procedures for
CX-Simulator Simulation
Support Software for Windows computers

Describes the operating procedures for the CXSimulator.

Network setup and monitoring

Describes the operating procedures for the CXIntegrator.

When you do simulation, also refer to the CXProgrammer Operation Manual (W446), SoftUsing simulation in the CX- ware User’s Manual (W473), and CS/CJ/NSJseries Instructions Reference Manual (W474).
Programmer with CX-Programmer version 6.1 or
higher

CXONE-AL@@C-V@/
CXONE-AL@@D-V@

CJ2 CPU Unit Hardware User’s Manual

Overview
This section provides an overview of the CJ2 CPU Units.

1-1 Overview of CJ2 CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-1-1
1-1-2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
CJ2 CPU Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-2 Basic Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1-3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1-3-1
1-3-2
1-3-3

CJ2 CPU Unit Hardware User’s Manual

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Function Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

1-1

1 Overview

1-1
1-1-1

Overview of CJ2 CPU Units
Overview
The SYSMAC CJ2-series CPU Units are multi-functional CPU Units that provide the following features.

z Fast, with Large Memory Capacity
Basic performance is faster and memory capacity has been increased to provide ample capability
for machine control.

z Built-in EtherNet/IP Port (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
The CJ2 CPU Units support the EtherNet/IP open network as a standard feature. Universal Ethernet
communications, such as data links between PLCs, message communications between PLCs, and
FTP transfers, are all possible from a peripheral device connection.

z General-purpose Networks for Support Software Interface
Support Software and devices can be easily connected using commercially available cable to general-purpose networks via USB and EtherNet/IP ports. (The EtherNet/IP port is provided only on the
CJ2H-CPU6@-EIP and CJ2M-CPU3@.)

z Tag Access (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
CJ2 CPU Units have a tag name server to manage tag names and I/O addresses. This enables
access from external devices using tag names, without needing to know the I/O addresses.

z Synchronous Unit Operation (CJ2H CPU Unit with Unit Version 1.1 or Later)
The timing of processing performed by CPU Bus Units and Special I/O Units can be synchronized.
This minimizes fluctuations in timing from input and processing to outputs, making it easier to ensure
application performance.

z Easier Programming
CJ2 CPU Units offer a highly readable programming environment, including features such as
addressing DM and EM Area bits, setting address offsets, and using array variables.

z Improved Debugging
Online editing and data tracing have been improved, greatly increasing the efficiency of debugging.

z Increased Pulse I/O Capacity (CJ2M CPU Unit with Unit Version 2.0 or Later)
With the CJ2M CPU Units, optional Pulse I/O Modules can be mounted to enable pulse I/O for up to
four axes.

z More Serial Communications Ports (CJ2M-CPU3@ Only)
With the standard CJ2M CPU Unit (CJ2M-CPU3@) you can add an RS-232C or RS-422A/485
Option Board to the standard-feature EtherNet/IP port to increase the number of serial communications ports.

1-2

CJ2 CPU Unit Hardware User’s Manual

1 Overview
1-1 Overview of CJ2 CPU Units

CJ2H CPU Units
Tag access

Easier programming

Faster, with
greater capacity

Improved debugging

Synchronous unit operation
(CJ2H CPU Unit with Unit
Version 1.1 or Later)

1
1-1-1 Overview

General-purpose networks for
Support Software interface

Built-in EtherNet/IP port
(CJ2H-CPU6@-EIP)

CJ2M CPU Units
Standard CPU Unit (CJ2M-CPU3@)

Tag access

Simple CPU Unit (CJ2M-CPU1@)

Easier programming

Improved debugging

Built-in
EtherNet/IP port
General-purpose
networks for Support
Software interface
Optional serial
communications
ports
Expandable
pulse I/O

Expandable
pulse I/O

RS-232C

CJ2 CPU Unit Hardware User’s Manual

General-purpose
networks for Support
Software interface

RS-422A/485

1-3

1 Overview

1-1-2

CJ2 CPU Unit Features

Fast, with Large Memory Capacity
z High-speed Processing
High-speed processing is possible for basic instructions (0.016 µs min. for CJ2H and 0.04 µs min.
for CJ2M), special instructions (0.05 µs min. for CJ2H and 0.06 µs min. for CJ2M), and immediate
refreshing (0.99 µs min. for CJ2H and 1.26 µs min. for CJ2M).

z Large Program Capacity
The CJ2 CPU Units provide a large program capacity of up to 400 Ksteps.

z Special Function Block Definition Area (CJ2M Only)
With a CJ2M CPU Unit, a special area called the FB Program Area is provided to store function
block definitions. (The FB Program Area holds 20K steps.) This allows you to use function blocks to
make program components and structures from previous programs while reducing the usage of the
User Program Area. And any function block definitions that would exceed the FB Program Area are
stored in the User Program Area.

z Large Data Memory Capacity
The CJ2 CPU Units provide a large EM Area capacity of up to 800 Kwords (25 banks).

z Up to 128 Cyclic Tasks
The user program can be divided into up to 128 tasks. Using smaller task programs makes it easier
to structure programs and contributes to shorter cycle times.

z Enhanced Performance for Executing Interrupt Tasks (CJ2H CPU Units with
Unit Version 1.1 or Later)
With CJ2H CPU Units with unit version 1.1, overhead time for interrupt tasks is approximately 20%
less than for unit version 1.0 even for normal usage. Also, by using High-speed interrupt function, it
is possible to improve execution performance as shown below with certain restrictions.
• Greatly reduce overhead time for interrupt tasks (interrupt task startup time + return time to cyclic
tasks).
Example: For I/O interrupt tasks, the time for normal operation is 37 µs but the time is 25 µs if
High-speed interrupt function is used.
• Minimum interval setting of 0.1 ms for one of Scheduled Interrupt Tasks
(For unit version 1.0, the minimum interval is 0.2 ms.)

1-4

CJ2 CPU Unit Hardware User’s Manual

1 Overview

The CJ2 CPU Units provide as standard equipment a built-in EtherNet/IP port that supports the same
FINS Ethernet functions as an Ethernet Unit (including features such as an FTP server and time coordination) as well as the EtherNet/IP open network.

z High-speed, High-capacity Data Links with User-set Refresh Cycles
The CJ2 CPU Units provide high-speed, high-capacity data links, and refresh cycles can be set individually for each data link area.

CJ2 CPU Unit

High speed
High capacity

The refresh cycle can be set individually for each area.

In addition, using the EtherNet/IP DataLink Tool makes it possible to set the data links using an interface similar to that of the Controller Link automatic data link setup.

General-purpose Networks for Support Software Interface
z Built-in USB and EtherNet/IP Ports
A commercially available USB cable can be used to connect to the PLC directly from a USB port on
a personal computer. In addition, with the CJ2H-CPU6@-EIP or CJ2M-CPU3@, a PLC on the EtherNet/IP network can be accessed via USB.

z Prevent Connecting to the Wrong PLC by Using PLC Names from Support
Software
A user-set PLC name can be recorded in a CJ2 CPU Unit. When using Support Software to connect
online to a PLC, verification of the PLC name prevents incorrect connections from the Support Software.

CJ2 CPU Unit Hardware User’s Manual

1
1-1-2 CJ2 CPU Unit Features

EtherNet/IP

1-1 Overview of CJ2 CPU Units

Built-in EtherNet/IP Port (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)

1-5

1 Overview

Tag Access (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
z Network Symbols (Tags) for Flexible Support of Program Changes
The CJ2 CPU Units support network symbols (tags). They have an internal tag name server that
enables them to store tag names and addresses in advance in symbol tables in the CPU Units. Tags
enable the following features.

Data links can be set using tags.
With data links on an EtherNet/IP network, send and receive areas can be specified using symbols
rather than addresses. This enables flexible support for design changes by allowing the data link
areas set by tags to remain unchanged, while simply changing the symbol tables that contain the tag
names and addresses.
Data links enabled by names
Examples: Inputs from a to b
Inputs from c to d
EtherNet/IP
CJ2 CPU Unit

CJ2 CPU Unit

Access from host devices is enabled using tags.
Tags can be used for access from host devices, such as touch panel NS-series Programmable Terminals. This makes the creation of host screens and programs at devices such as PTs much more
convenient.
Touch Panel
Access is possible using tags.
NS-series PT
Examples: Writing to a
Reading from b

Host application, such as SCADA

Middleware
Supporting EtherNet/IP

EtherNet/IP
CJ2 CPU Unit

CJ2 CPU Unit

Automatic tag allocation makes it unnecessary to know the addresses.
Automatic allocation of tags in the high-capacity EM Area, using automatic address allocation in CXProgrammer symbol tables, enables data link design and access from host devices without having to
pay attention to addresses.
EtherNet/IP

CJ2 CPU Unit

SYSMAC
CJ2H
CPU64-EIP

RUN
ERR/AL M

PROGRAMMABLE
CONTROLLER

INH
PRPHL
COMM
BKUP

OPEN

Specified by tag a.

MCPWR
BUSY

MS
NS
COMM
100M
10M

Tags are allocated in
a high-capacity area.

PERIPHERAL

PORT

1-6

Designing is performed
by using only tags,
with no need to pay
attention to addresses.

CJ2 CPU Unit Hardware User’s Manual

1 Overview

z A CJ2 CPU Unit can synchronize the start of the processing performed by
CPU Bus Units and Special I/O Units to a specified cycle.
Synchronous data refreshing can be used between the CJ2H CPU Unit and Synchronous Units,*
and the refreshed data can be used in operations in a synchronous interrupt task. This enables multiaxis control with minimal fluctuations in the timing from inputs and processing to outputs. This provides support for motion applications that require precise timing, such as electronic cam control.
* Synchronous Units are CPU Bus Units and Special I/O Units that support the synchronous unit operation function. The following Synchronous Units are available as of July 2010: CJ1W-NC214/234/414/434 Position Control
Units.

CJ2H CPU Units (with
unit version 1.1 or later)

Synchronous Units
Example:
Position Control Units

Example:
Electronic cam control

Synchronous data
refreshing

Motor drive
Servomotor

Several servomotors are controlled synchronously
based on the operation of the encoder.

Easier Programming
z Address offsets can be specified.
When an address is specified for an instruction operand, an offset can be specified in brackets after
the address to offset it. For example, by setting a word address in brackets to specify the offset, the
address can be dynamically specified according to the contents of that word.
Example
W0.00[D0]: W0.00 is the starting address and the contents of D0 is the offset. If D0 is &3, then
W0.03 is specified.

z Symbols can be specified for array variable subscripts.
By specifying symbols for array variable subscripts, elements can be dynamically specified according to the values of the symbols.
Example
a[b]: The value of symbol b specifies the element for array variable a[ ].

CJ2 CPU Unit Hardware User’s Manual

1-7

1-1 Overview of CJ2 CPU Units

Synchronous Unit Operation (CJ2H CPU Units with Unit Version 1.1
or Later)

1 Overview

z Create and Use Data Structures
With CX-Programmer version 9.0 or higher, data structures can be created and used. This enables
easily using I/O memory in the CPU Unit as a database or for library data.

z Bit addresses can be used in the DM Area and EM Area.
Previously the DM Area and the EM Area could be addressed only by words, and bit addresses
could not be specified. The work area for bits can now be expanded by enabling bit addresses in the
DM and EM Areas.
For example, D10.00 specifies bit 00 of D10.

z The format for timer/counter PV refreshing can be selected individually for
each instruction.
Either BCD or binary can be selected individually for each instruction as the format for timer/counter
PV refreshing. For example, the TIM (BCD) and TIMX (binary) instructions can be used together.

z The optimum languages can be combined for structured programming.
Ladder diagrams, ST, and SFC languages can be freely combined in the user program. Being able
to use the optimum languages for a particular process helps reduce the time involved in programming.
User program
Ladder diagram
Control of equipment
and external devices

Task

Task
a := a + 1;

The programming language
suited to the process can be used.

ST
Math processing

Task

SFC
Step progression control

In addition, ladder diagrams and ST language can be freely used for function blocks (FBs) in ladder
diagrams and ST programs, and for transition and action programs in SFC. This feature makes it
possible to optimize structured programming.
Ladder diagram
FB in ladder diagram

FB in ST program
FB_(A:=B,C=>D);

The programming
language suited to
the process can
be used.

a := a + 1;

Transition and action
programs in SFC

1-8

CJ2 CPU Unit Hardware User’s Manual

1 Overview

z Reduced Effect on Cycle Time from Online Editing
The additional cycle time due to online editing has been reduced to approx. 1 ms, minimizing the
effects on equipment operation during debugging.

z Fast, High-capacity Data Tracing
Up to 32 Kwords of data can be traced (8 times more than previously), with ample trigger conditions,
and data can be traced continuously for long periods of time.

With CX-Programmer version 9.12 or higher, data to be traced can be easily selected from lists.

z Force-set/Reset Bits in Specified EM Area Banks
With CX-Programmer version 8.3 or higher, a parameter can be set to enable force-setting/resetting
bits in specified EM Area banks. (This function is supported only by CJ2H CPU Units with unit version 1.2 or later and CJ2M CPU Units.)

CJ2 CPU Unit Hardware User’s Manual

1-9

1
1-1-2 CJ2 CPU Unit Features

z I/O Module Auxiliary Area Selection with CX-Programmer 9.12 or Higher
(CJ2M CPU Units Only)

1-1 Overview of CJ2 CPU Units

Improved Debugging

1 Overview

Add a Serial Option Board (CJ2M-CPU3@ Only)
With the CJ2M-CPU3@, one Serial Communications Option Board with one RS-232C port or one RS422A/485 port can be added.
With the serial port, it is easy to connect to general components, such as barcode readers, and other
components such as PTs, other CJ/CP-series PLCs, and Inverters.
Example: NS-series PT
Serial Option Boards
CP1W-CIF01

CJ2M-CPU3@

CP1W-CIF12
COMM

COMM

CP1W-CIF11
COMM

RDA- RDB+ SDA- SDB+ FG

RS-232C
NT Link or
other protocol

RS-232C
COMM

RS-422A/485 port (not
RS-422A/485 port
(isolated, max. transmis- isolated, max. transmission distance: 50 m)
sion distance: 500 m)

EtherNet/IP

RS-232C

Barcode reader or other
general-purpose component
Or RS-422A/485
Example: Serial PLC Links

CJ2M, CP1E,
CP1L or CJ1M

1-10

CJ2 CPU Unit Hardware User’s Manual

1 Overview

With the CJ2M CPU Units, up to two Pulse I/O Modules can be mounted.
This enables input functions, such as normal inputs, interrupt inputs, high-speed counter inputs, and
quick-response inputs, and output functions, such as normal outputs, pulse outputs, and variable duty
factor pulse outputs. This provides support for many different types of applications.
Pulse I/O
Modules

1-1 Overview of CJ2 CPU Units

Use Pulse I/O and Interrupt Inputs (CJ2M CPU Units Only)

1
1-1-2 CJ2 CPU Unit Features

• Normal outputs: 12 (6 per Pulse I/O Module)
• Normal inputs: 20 (10 per Pulse I/O Module)
• Pulse outputs: 4 (2 per Pulse I/O Module)
• Interrupt inputs: 8 (4 per Pulse I/O Module)
• High-speed counter inputs: 4 (2 per Pulse I/O Module) • Variable duty factor pulse outputs: 4 (2 per Pulse I/O Module)
• Quick-response inputs: 8 (4 per Pulse I/O Module)

CJ2 CPU Unit Hardware User’s Manual

1-11

1 Overview

1-2

Basic Operating Procedure
In general, use the following procedure.
1. Setting Devices and Hardware
Mount the Power Supply Unit, the CPU Unit, the other Units, and the End Covers. Set the DIP switch
and rotary switches as required.

Refer to Section 3 Nomenclature and Functions and Section 5 Installation in the CJ2 CPU Unit
Hardware User’s Manual (Cat. No. W472).

2. Wiring
Wire the power supply, I/O, and communications. Refer to the following manuals.

Refer to Section 5 Installation in the CJ2 CPU Unit Hardware User’s Manual (Cat. No. W472).
Refer to Section 11 Programming Devices and Communications in the CJ2 CPU Unit Software
User’s Manual (Cat. No. W473).
Refer to Section 3 I/O Specifications and Wiring for Pulse I/O Module in the CJ2M CPU Unit
Pulse I/O Module User's Manual (Cat. No. W486).

3. Connecting Online to the PLC
Connect the personal computer online to the PLC.

Refer to Section 4 Support Software in the CJ2 CPU Unit Hardware User’s Manual (Cat. No.
W472)

4. I/O Allocations
Using the CX-Programmer, allocate I/O memory in the CPU Unit to the mounted Units.

Refer to Section 8 I/O Allocations and Unit Settings in the CJ2 CPU Unit Software User’s
Manual (Cat. No. W473)
Refer to Section 2 I/O Application Procedures and Function Allocations in the CJ2M CPU Unit
Pulse I/O Module User's Manual (Cat. No. W486).

5. Software Setup
Make the PLC software settings.

• CPU Unit initialization: Refer to Section 4 CPU Unit Initialization in the CJ2 CPU Unit
Software User’s Manual (Cat. No. W473).
• DM Area Settings for Special I/O Units and CPU Bus Units: Refer to Section 8 I/O Allocations
and Unit Settings in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
• PLC Setup: Refer to Section 9 PLC Setup in the CJ2 CPU Unit Software User’s Manual (Cat.
No. W473).

6. Creating the Program
Create the program using the CX-Programmer.
Refer to Section 5 Understanding Programming in the CJ2 CPU Unit Software User’s Manual
(Cat. No. W473).

7. Checking Operation
Check the I/O wiring and the AR Area settings, and perform trial operation. The CX-Programmer can
be used for monitoring and debugging.

Refer to 10-7 Debugging in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).

8. Basic Program Operation
Set the operating mode to RUN mode to start operation.

1-12

CJ2 CPU Unit Hardware User’s Manual

1 Overview

1-3-1

Specifications

1-3 Specifications

1-3

General Specifications
CJ2H-

CJ2M-

Item
CPU64(-EIP)

CPU65(-EIP)

Mounted in a panel

Grounding

Less than 100 Ω

CPU Unit Dimensions

Weight

Current Consumption

Use Environment

CPU67(-EIP)

CJ2H-CPU6@-EIP:

90 mm × 65 mm × 80 mm (H × D × W)

CJ2H-CPU6@:

90 mm × 65 mm × 49 mm (H × D × W)

CJ2H-CPU6@-EIP:

280 g or less

CJ2H-CPU6@:

190 g or less

CJ2H-CPU6@-EIP:

5 VDC, 0.82 A

CJ2H-CPU6@:

5 VDC, 0.42 A

Ambient Operating Temperature

0 to 55°C

Ambient Operating Humidity

10% to 90% (with no condensation)

Atmosphere

Must be free from corrosive gases.

Ambient Storage Temperature

−20 to 70°C (excluding battery)

Altitude

2,000 m or less

Pollution Degree

2 or less: Conforms to JIS B3502 and IEC 61131-2.

Noise Immunity

2 kV on power supply line (Conforms to IEC 61000-4-4.)

Overvoltage Category

Category II: Conforms to JIS B3502 and IEC 61131-2.

EMC Immunity Level

Zone B

Vibration Resistance

CPU68(-EIP)

CPU1@

CPU3@

90 mm ×
75 mm ×
31 mm (H
× D × W)

90 mm ×
75 mm ×
62 mm (H
× D × W)

130 g or
less

190 g or
less*

5 VDC,
0.5 A

5 VDC,
0.7 A

Conforms to IEC60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz
Acceleration of 9.8 m/s2 for 100 min in X, Y, and Z directions (10 sweeps of 10 min each = 100 min total)

Shock Resistance

Conforms to IEC60068-2-27.
147 m/s2, 3 times in X, Y, and Z directions (100 m/s2 for Relay Output Units)

Battery

Life

5 years at 25°C

Model

CJ1W-BAT01

Applicable Standards

Conforms to cULus, NK, LR, and EC Directives.

* Without a Serial Option Board

CJ2 CPU Unit Hardware User’s Manual

1-13

1
1-3-1 General Specifications

Enclosure

CPU66(-EIP)

1 Overview

1-3-2

Performance Specifications
CJ2HItems

CPU64
(-EIP)

User Memory

50K
steps

I/O Bits

2,560 bits

Processing Speed

CPU65
(-EIP)
100K
steps

CPU66
(-EIP)
150K
steps

CJ2MCPU67
(-EIP)
250K
steps

CPU68
(-EIP)
400K
steps

CJ2H-CPU@@-EIP:200 µs

CPU
11/31
5K steps

CPU
12/32
10K
steps

20K
steps

CPU
14/34
30K
steps

CPU
15/35
60K
steps

CJ2M-CPU3@: 270 µs

Overhead Processing
Time*1

Normal Mode:

Execution Time

Basic Instructions: 0.016 µs min.;
Special Instructions: 0.048 µs min.

Basic Instructions: 0.04 µs min.;
Special Instructions: 0.06 µs min.

Interrupts

I/O Interrupts and
External
Interrupts

Interrupt task startup time: 26 µs or 17 µs*2 (30 µs for
unit version 1.0)
Return times to cyclic tasks: 11 µs or 8 µs*2 (15 µs for
unit version 1.0)

Interrupt task startup time: 31 µs
Return times to cyclic tasks: 10 µs

Scheduled
Interrupts

Minimum time interval: 0.2 ms or 0.1 ms*2
(set in 0.1-ms increments)

Minimum time interval: 0.4 ms (set in 0.1-ms increments)

Interrupt task startup time: 22 µs or 13 µs*2 (27 µs for
unit version 1.0)
Return time to cyclic task: 11 µs or 8 µs*2 (15 µs for unit
version 1.0)

Interrupt task startup time: 30 µs
Return time to cyclic task: 11 µs

Maximum Number of Connectable Units

CJ2H-CPU@@:

Normal Mode:

CPU
13/33

100 µs

CJ2M-CPU1@: 160 µs

Total per CPU Rack or Expansion Rack: 10 Units max.;
Total per PLC: 40 Units max.

Basic I/O Units

No limit
However, a maximum of two CJ1W-INT01 Interrupt Input Units can be mounted.

Special I/O Units

Units for up to 96 unit numbers can be mounted. (Unit numbers run from 0 to 95. Units are allocated between 1 and
8 unit numbers.)

CPU Bus Units

CJ2H-CPU6@-EIP: 15 Units max.
CJ2H-CPU6@: 16 Units max.

CJ2M-CPU3@: 15 Units max.
CJ2M-CPU1@: 16 Units max.

Pulse I/O Modules

---

2 max.*3

Slots for which interrupts
can be used

CJ2H-CPU6@-EIP: Slots 0 to 3 on CPU Rack
CJ2H-CPU6@: Slots 0 to 4 on CPU Rack

Slots 0 to 4 on CPU Rack

Maximum Number of Expansion Racks

3 max.

CIO Area

2,560 bits (160 words): Words CIO 0000 to CIO 0159

I/O Area
Link Area

3,200 bits (200 words): Words CIO 1000 to CIO 1199

Synchronous Data Refresh
Area

1,536 bits (96 words): Words CIO 1200 to CIO 1295

---

CPU Bus Unit Area

6,400 bits (400 words): Words CIO 1500 to CIO 1899

Special I/O Unit Area

15,360 bits (960 words): Words CIO 2000 to CIO 2959

Pulse I/O Area

---

20 inputs, 12 outputs (CIO 2960 to CIO 2963)

Serial PLC Link Words

---

1,440 bits (90 words): Words CIO 3100 to CIO 3189

DeviceNet Area

9,600 bits (600 words): Words CIO 3200 to CIO 3799

Internal I/O Area

3,200 bits (200 words): Words CIO 1300 to CIO 1499 (Cannot be used for external I/O.)
37,504 bits (2,344 words): Words CIO 3800 to CIO 6143 (Cannot be used for external I/O.)

Work Area
Holding Area

8,192 bits (512 words): Words W000 to W511 (Cannot be used for external I/O.)
8,192 bits (512 words): Words H000 to H511
Bits in this area maintain their ON/OFF status when PLC is turned OFF or operating mode is changed.
Words H512 to H1535: These words can be used only for function blocks. They can be used only for function block
instances (i.e., they are allocated only for internal variables in function blocks).

*1 The following times are added if EtherNet/IP data tag links are used for the CJ2H-CPU6@-EIP.
Normal operation: 100 µs + Number of transfer words x 0.33 µs
High-speed interrupt function enabled: 100 µs + Number of transfer words × 0.87 µs
The following time must be added when using EtherNet/IP tag data links for the CJ2M-CPU3@.
100 µs + (Number of words transferred × 1.8 µs)
The following time must be added when using Pulse I/O Modules with a CJ2M CPU Unit:
10 µs × Number of Pulse I/O Modules
*2 This applies when high-speed interrupts are used.
*3 Supported only by CJ2M CPU Units with unit version 2.0 or later. A Pulse I/O Module must be mounted.

1-14

CJ2 CPU Unit Hardware User’s Manual

1 Overview

CPU64
(-EIP)

Auxiliary Area

CPU65
(-EIP)

CJ2M-

CPU66
(-EIP)

CPU67
(-EIP)

CPU68
(-EIP)

CPU
11/31

CPU
12/32

CPU
13/33

CPU
14/34

CPU
15/35

Read-only: 31,744 bits (1,984 words)
• 7,168 bits (448 words): Words A0 to A447
• 24,576 bits (1,536 words): Words A10000 to A11535*4
Read/write: 16,384 bits (1,024 words) in words A448 to A1471*4
16 bits: TR0 to TR15

Timer Area

4,096 timer numbers (T0000 to T4095 (separate from counters))

Counter Area

4,096 counter numbers (C0000 to C4095 (separate from timers))

DM Area

32k words*5

• DM Area words for Special I/O Units: D20000 to D29599 (100 words × 96 Units)
• DM Area words for CPU Bus Units: D30000 to D31599 (100 words × 16 Units)
32k words/bank × 25 banks max.: E00_00000 to
E18_32767 max.*5, *6

32k words/bank × 4 banks max.: E00_00000 to
E3_32767 max.*5

32K
words ×
4 banks

32K
words ×
10 banks

32K
words ×
15 banks

32K
words ×
25 banks

32K words × 1 bank

32K words × 4
banks

Using EM
Area forcesetting/resetting

Banks 0
to 3 hex

Banks 0
to 9 hex

Banks 0
to E hex

Banks 0
to 18 hex

Bank 0 hex

Banks 0 to 3 hex

Using automatic
address allocation specifications

Bank 3
hex

Banks 6
to 9 hex

Banks 7
to E hex

Banks 11
to 18 hex

---

EM Area

Banks for
which bits
can be
forceset/reset*7

Index Registers

IR0 to IR15
These are special registers for storing PLC memory addresses for indirect addressing. (Index Registers can be set
so that they are unique in each task or so that they are shared by all tasks.)

Cyclic Task Flag Area

128 flags

Memory Card

128 MB, 256 MB, or 512 MB

Operating Modes

PROGRAM Mode: Programs are not executed. Preparations can be executed prior to program execution in this
mode.
MONITOR Mode:

Programs are executed, and some operations, such as online editing, and changes to present
values in I/O memory, are enabled in this mode.

RUN Mode:

Programs are executed. This is the normal operating mode.

Execution Mode

Normal Mode

Programming Languages

Ladder Logic (LD)
Sequential Function Charts (SFC)
Structured Text (ST)
Instruction Lists (IL)

Function
Blocks

Maximum number of definitions

2,048

256

2,048

Maximum number of
instances

2,048

256

2,048

---

20K steps

FB Program Area

*4 A960 to A1471 and A10000 to A11535 cannot be accessed by CPU Bus Units, Special I/O Units, PTs, and Support Software that do not specifically support the CJ2 CPU Units.
*5 Bits in the EM Area can be addressed either by bit or by word. These bits cannot be addressed by CPU Bus Units, Special I/O Units, PTs, and Support Software that do not specifically support the CJ2 CPU Units.
*6 EM banks D to 18 cannot be accessed by CPU Bus Units, Special I/O Units, PTs, and Support Software that do not specifically support the CJ2 CPU Units.
*7 With CJ2H CPU Units with unit version 1.2 or later, force-setting/resetting bits in the EM Area is possible either for banks
that have been specified for automatic address allocation or for banks specified for the EM Area force-set/reset function.
With CJ2M CPU Units, force-setting/resetting bits in the EM Area is possible only for banks specified for the EM Area
force-set/reset function.

CJ2 CPU Unit Hardware User’s Manual

1-15

1-3-2 Performance Specifications

Temporary Area

1-3 Specifications

CJ2HItems

1 Overview

CJ2HItems

Tasks

CPU64
(-EIP)

CPU65
(-EIP)

CPU66
(-EIP)

CJ2MCPU67
(-EIP)

CPU68
(-EIP)

CPU
11/31

CPU
12/32

CPU
13/33

CPU
14/34

CPU
15/35

Type of Tasks

Cyclic tasks
Interrupt tasks (Power OFF interrupt tasks, scheduled interrupt tasks, I/O interrupt tasks, external
interrupt tasks, and input interrupt tasks*3)

Number of Tasks

Cyclic tasks: 128
Interrupt tasks: 256
(Interrupt tasks can be defined as cyclic tasks to create extra cyclic tasks. Therefore, the total
number of cyclic tasks is actually 384 max.)

Symbols (Variables)

Type of Symbols

Local symbols: Can be used only within a single task in the PLC.
Global symbols: Can be used in all tasks in the PLC.
Network symbols (tags)*8: I/O memory in the CPU Unit can be externally accessed using symbols, depending on parameter settings.

Data Type of Symbols

BOOL (bit)
UINT (one-word unsigned binary)
UDINT (two-word unsigned binary)
ULINT (four-word unsigned binary)
INT (one-word signed binary)
DINT (two-word signed binary)
LINT (four-word signed binary)
UINT BCD (one-word unsigned BCD)*9
UDINT BCD (two-word unsigned BCD)*9
ULINT BCD (four-word unsigned BCD)*9
REAL (two-word floating-point)
LREAL (four-word floating-point)
CHANNEL (word)
NUMBER (constant or number)
WORD (one-word hexadecimal)
DWORD (two-word hexadecimal)
LWORD (four-word hexadecimal)
STRING (1 to 255 ASCII characters)
TIMER (timer)*10
COUNTER (counter)*10
User-defined data types (data structures)*11

Maximum Size of Symbol

32k words

Array Symbols (Array Variables)

One-dimensional arrays

Number of Array Elements

32,000 elements max.

Number of Registrable Network Symbols
(Tags)*8

20,000 max.

Length of Network Symbol (Tag) Name*8

255 bytes max.

Encoding of Network Symbols (Tags)*8

UTF-8

2,000 max.

*8 Supported only by the CJ2H-CPU6@-EIP and CJ2M-CPU3@.
*9 This data type cannot be used in Function blocks.
*10 This data type can be used only in Function blocks.
*11 Supported only when CX-Programmer version 9.0 or higher is used.

1-16

CJ2 CPU Unit Hardware User’s Manual

1 Overview

Data Tracing

Memory Capacity

CPU64
(-EIP)

CPU65
(-EIP)

8,000 words

CJ2M-

CPU66
(-EIP)

CPU67
(-EIP)

CPU68
(-EIP)

16,000
words

32,000 words

(Up to 32k words x 25 banks when EM is specified in CX-Programmer)
Number of Samplings

CPU
11/31

CPU
12/32

CPU
13/33

CPU
14/34

CPU
15/35

8,000 words
(Up to 32k words x 4 banks when EM is specified in CX-Programmer)

Bits = 31, one-word data =16, two-word data = 8, four-word data = 4
1 to 2,550 ms (Unit: 1 ms)

Trigger Conditions

ON/OFF of specified bit
Data comparison of specified word
Data size: 1 word, 2 words, 4 words
Comparison Method: Equals (=), Greater Than (>), Greater Than or Equals (≥), Less Than (<),
Less Than or Equals (≤), Not Equal (≠)

Delay Value

−32,768 to +32,767 ms
Memory Card (128, 256, or 512 Mbytes) (Use the Memory Cards provided by OMRON.)
EM file memory (Part of the EM Area can be converted for use as file memory.)

Source/Comment Memory

Program source, comments, program
index, and symbol table

CJ2 CPU Unit Hardware User’s Manual

Capacity: 3.5 Mbytes

Capacity: 1 Mbytes

1-17

1
1-3-2 Performance Specifications

Sampling Cycle

File Memory

1-3 Specifications

CJ2HItems

1 Overview

CJ2HItem

Communications

CPU64
(-EIP)

CPU65
(-EIP)

CPU66
(-EIP)

CJ2MCPU67
(-EIP)

CPU68
(-EIP)

CPU
11/31

CPU
12/32

CPU
13/33

Logical Ports for
Communications

Logical Ports
Extended Logical Ports

64 ports (Used for SEND2, RECV2, CMND2, and PMCR2 instructions.)

CIP Communications Specification

Class 3 (Number of
Connections)

Number of connections: 64

UCMM (Non-connection Type)

Maximum number of clients that can communicate at the same time: 32
Maximum number of servers that can communicate at the same time: 40

Peripheral (USB) Port
Baud Rate
Transmission Distance
Serial Port

CPU
14/34

CPU
15/35

8 ports (Used for SEND, RECV, CMND, PMCR, TXDU, and RXDU instructions.)

USB 2.0-compliant B-type connector
12 Mbps max.
5 m max.
Interface: Conforms to EIA RS-232C.

• CJ2M-CPU1@ interface: Conforms to EIA
RS-232C.
• CJ2M-CPU3@: No serial ports with default
system
One of the following Serial Option Boards can
be mounted.
• CP1W-CIF01 RS-232C Option Board
• CP1W-CIF11 RS-422A/485 Option Board
(not isolated, max. transmission distance:
50 m)
• CP1W-CIF12 RS-422A/485 Option Board
(isolated, max. transmission distance: 500
m)

Communications Method

Half-duplex

Synchronization Method

Start-stop

Baud Rate

0.3, 0.6, 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, or 115.2 (kbps)

Transmission Distance

Transmission Specifications

EtherNet/IP Port*12
Media Access Method

CSMA/CD

Modulation

Baseband

Transmission Paths

Star

Baud Rate

100 Mbps (100Base-TX)

Transmission Media

Shielded twisted-pair (STP) cable; Categories: 5, 5e

Transmission Distance

100 m (between Ethernet switch and node)

Number of Cascade Connections

No restrictions if Ethernet switch is used.

CIP Communications: Tag Data Links
Communications Specifications

15 m max.
---

---

Number of Connections

256

Packet Interval (Refresh period)

0.5 to 10,000 ms (Unit: 0.5 ms)
Can be set for each connection. (Data will be
refreshed at the set interval, regardless of the
number of nodes.)

1 to 10,000 ms (in 0.5-ms increments)
Can be set for each connection. (Data will be
refreshed at the set interval, regardless of the
number of nodes.)

Permissible Communications Band

6,000 packets per second*13

3,000 packets per second*13

Number of Registrable Tags

256

Type of Tags

CIO, DM, EM, HR, WR, and network symbols

Number of Tags per Connection

8 (Seven tags if PLC status is included in the segment.)

*12 The EtherNet/IP port is built into the CJ2H-CPU6@-EIP and CJ2M-CPU3@ only.
*13 “Packets per second” is the number of communications packets that can be processed per second.

1-18

CJ2 CPU Unit Hardware User’s Manual

1 Overview

CPU65
(-EIP)

CPU66
(-EIP)

CJ2MCPU67
(-EIP)

CPU68
(-EIP)

CPU
11/31

CPU
12/32

CPU
13/33

CPU
14/34

CPU
15/35

Maximum Link Data Size per Node

184,832 words

640 words

Maximum Data Size per Connection

252 or 722 words*14
(Data is synchronized within each connection.)

640 words (Data is synchronized within each
connection.)*15

Number of Registrable Tag Set

256 (1 connection = 1 segment)

32 (1 connection = 1 segment)

Maximum Tag Set Size

722 words (One word is used when PLC status
is included in the segment.)

640 words (One word is used when PLC status is included in the segment.)*15

Maximum Number of Tags Refreshable in a Single Cycle of CPU Unit*16

Output/send (CPU Unit to EtherNet/IP): 256
Input/receive (EtherNet/IP to CPU Unit): 256

Output/send (CPU Unit to EtherNet/IP): 32
Input/receive (EtherNet/IP to CPU Unit): 32

Data Size Refreshable in a Single
Cycle of CPU Unit*16

Output/send (CPU to EtherNet/IP): 6,432
words
Input/receive (EtherNet/IP to CPU): 6,432
words

Output/send (CPU Unit to EtherNet/IP): 640
words
Input/receive (EtherNet/IP to CPU Unit): 640
words

Change of Tag Data Link Parameter
Settings during Operation

OK*17

Multi-cast Packet Filter*18

CIP Communications: Explicit Messages

---

Class 3 (Number of Connections)

Number of connections: 128

UCMM (Non-connection Type)

Maximum number of clients that can communicate at the same time: 32
Maximum number of servers that can communicate at the same time: 32

CIP Routing

OK
(CIP routing is enabled for the following remote Units: CJ1W-EIP21, CJ2H-CPU6@-EIP, CJ2MCPU3@, and CS1W-EIP21.)

FINS Communications

Maximum number of clients that can communicate at the same time: 16
Maximum number of servers that can communicate at the same time: 16

---

FINS/UDP

FINS/TCP

16 connections max.

EtherNet/IP Conformance Test

Conforms to A5.

EtherNet/IP Interface

10Base-T/100Base-TX
Auto Negotiation/Fixed Setting

*14 Large Forward Open (CIP optional specification) must be supported in order for 505 to 1,444 bytes to be used as the data
size. Application is supported between CS/CJ-series PLCs. When connecting to devices from other manufacturers, make
sure that the devices support the Large Forward Open specification.
*15 Unit version 2.0 of built-in EtherNet/IP section: 20 words
*16 If the maximum number is exceeded, refreshing will require more than one CPU Unit cycle.
*17 When changing parameters, however, the EtherNet/IP port where the change is made will be restarted. In addition, a timeout will temporarily occur at the other node that was communicating with that port, and it will then recover automatically.
*18 The EtherNet/IP port supports an IGMP client, so unnecessary multicast packets are filtered by using an Ethernet switch
that supports IGMP snooping.

CJ2 CPU Unit Hardware User’s Manual

1-19

1
1-3-2 Performance Specifications

Communications Specifications

Communications

CPU64
(-EIP)

1-3 Specifications

CJ2HItem

1 Overview

CJ2HItem

Pulse I/O*3

External interface

CPU64
(-EIP)
---

Pulse Inputs

CPU65
(-EIP)

CPU66
(-EIP)

CJ2MCPU67
(-EIP)

CPU68
(-EIP)

CPU
11/31

CPU
12/32

CPU
13/33

CPU
14/34

CPU
15/35

CJ2M-MD211 or CJ2M-MD212 Pulse I/O Module with 40-pin MIL connector
Can be used as normal inputs, interrupt inputs,
quick-response inputs, or high-speed counter
inputs. (Functions of each input must be
selected in the PLC Setup.)
Input method: Line-driver input or 24-VDC input
(selected by wiring)

Normal inputs

20 max. (10 per Pulse I/O Module)
Input constants: Set in the PLC Setup (0, 0.5,
1, 2, 4, 8, 16, or 32 ms). Default: 8 ms

Interrupt inputs and quickresponse inputs

8 max. (4 per Pulse I/O Module)
Input signal minimum ON pulse width: 30 µs

High-speed counter inputs

4 max. (2 per Pulse I/O Module)
Input method: Differential-phase (×4) pulses,
pulse + direction, up/down pulses, or increment
pulse
Maximum response frequency: 50 kHz for differential phases or 100 kHz for single phase
Counting mode: Linear mode or circular (ring)
mode
Count value: 32 bits
Counter reset: Phase Z + software reset or software reset
Control method: Target-value comparison or
range comparison
Gate function: Supported

Pulse Outputs

Can be used as normal outputs, pulse outputs,
or PWM outputs. (Functions of each output
must be selected in the PLC Setup.)
Output method: Sinking or sourcing transistor
outputs (The method is determined by Pulse
I/O Module model.)

Normal outputs
Pulse outputs

---

12 max. (6 per Pulse I/O Module)
4 max. (2 per Pulse I/O Module)
Output method: CW/CCW or pulse + direction
(The method is determined by the I/O wiring
and the instructions used in the ladder program.)
Output frequency: 1 pps to 100 kpps (in increments of 1 pps)
Output Mode: Continuous mode (for speed
control) or independent mode (for position control)
Output pulses: Relative coordinates: 0000 0000
to 7FFF FFFF hex (0 to 2,147,483,647 pulses)
Absolute coordinates: 8000 0000 to 7FFF
FFFF hex (−2,147,483,648 to 2,147,483,647)
Acceleration/deceleration curves: Linear or Scurve
Origin search function: Supported

PWM outputs

4 max. (2 per Pulse I/O Module)
Output frequency: 0.1 to 6,553.5 Hz (in 0.1-Hz
increments) or 1 to 32,800 Hz (in 1-Hz increments)
Duty ratio: 0.0% to 100.0% (in 0.1% increments)

1-20

CJ2 CPU Unit Hardware User’s Manual

1 Overview

Function Specifications
Functions

Cycle
Time Management

Description

Minimum Cycle Time

A minimum cycle time can be set.
(0.2 to 32,000 ms; Unit: 0.1 ms)
The minimum cycle time setting can be changed in MONITOR mode*1

Cycle Time Monitoring

The cycle time is monitored.
(0.01 to 40,000 ms; Unit: 0.01 ms)

Background Processing

Instructions with long execution times can be executed over multiple
cycles to prevent fluctuations in the cycle time.
Cyclic Refreshing

Cyclic refreshing of Basic I/O Units, Special I/O Units, and CPU Bus
Units

Immediate Refreshing

I/O refreshing by immediate refreshing instructions

Refreshing by IORF

I/O refreshing by IORF instruction

Basic I/O
Units, Special I/O
Units, and
CPU Bus
Units

I/O
Refreshing

Unit Recognition at Startup

The number of units recognized when the power is turned ON is displayed.

Basic I/O
Units

Input Response Time Setting

The input response times can be set for Basic I/O Units. The response
time can be increased to reduce the effects of chattering and noise at
input contacts. The response time can be decreased to enable detecting
shorter input pulses.

Load OFF Function

All of the outputs on Basic I/O Units can be turned OFF when an error
occurs in RUN or MONITOR mode.

Basic I/O Unit Status Monitoring

Alarm information can be read from Basic I/O Units and the number of
Units recognized can be read.

Reading/writing data using instructions for specific Units*1

Special instructions can be used to read/write required data for specific
Units at high speed.

Unit Restart Bits to Restart Units

A Special I/O Unit or CPU Bus Unit can be restarted.

Synchronous Unit Operation*2

The start of processing for all the specified Units can be synchronized at
a fixed interval.

Special I/O
Units and
CPU Bus
Units

Maximum number of Units: 10 Units (Only Units that support Synchronous Operation Mode can be used.)
Synchronous operation cycle: 0.5 to 10 ms (default: 2 ms)
Maximum number of words for synchronous data refreshing: 96 words
(total of all Units)

Configuration Management

Automatic I/O Allocation at Startup

I/O words can be automatically allocated to the Basic I/O Units that are
connected in the PLC to start operation automatically without registering
Units into I/O tables.

I/O Table Creation

The current unit configuration can be registered in I/O tables to prevent it
from being changed, to reserve words, and to set words.

Rack/Slot First Word Settings

The first words allocated to a Units on the Racks can be set.

*1 Supported only by CJ2H CPU Units with unit version 1.1 or later and CJ2M CPU Units.
*2 Supported only by CJ2H CPU Units with unit version 1.1 or later.

CJ2 CPU Unit Hardware User’s Manual

1-21

1-3-3 Function Specifications

Unit (I/O)
Management

1-3 Specifications

1-3-3

1 Overview

Functions
Pulse I/O
Functions*3

Pulse Input
Functions

Pulse Output Functions

Memory
Management

Memory
Cards

Description

Normal Inputs

Input signals are read during I/O refreshing and stored in I/O memory.

Interrupt Inputs

An interrupt task can be started when an input signal turns ON or turns
OFF.

Quick-response Inputs

Input signals that are shorter than the cycle time are read and stored in
I/O memory.

High-speed Counter Inputs

High-speed pulse signals are counted. Interrupt tasks can also be
started.

Normal Outputs

The status of I/O memory is output during I/O refreshing.

Pulse Outputs

A pulse signal is output with the specified frequency and number of
pulses at a fixed duty ratio (50%).

PWM Outputs

A pulse signal is output at the specified duty ratio.

Origin Searches

The origin point of the machine is determined according to the specified
origin search parameters while actually outputting pulses and using the
origin and origin proximity input signals as conditions. (Pulse inputs and
outputs are also used for this function.)

Holding I/O Memory when Changing Operating
Modes

The status of I/O memory can be held when the operating mode is
changed or power is turned ON. The forced-set/reset status can be held
when the operating mode is changed or power is turned ON.

File Memory

Files (such as program files, data files, and symbol table files) can be
stored in Memory Card, EM File Memory, or Comment Memory.

Built-in Flash Memory

The user program and Parameter Area can be backed up to an internal
flash memory when they are transferred to the CPU Unit.

EM File Function

Parts of the EM Area can be treated as file memory.

Storing Comments

I/O comments can be stored as symbol table files in a Memory Card, EM
file memory, or comment memory.

EM Configuration

EM Area can be set as trace memory or EM file memory.

Automatic File Transfer at Startup

A program file and parameter files can be read from a Memory Card
when the power is turned ON.

Program Replacement during PLC Operation

User programs can be transferred from a Memory Card to CPU Unit during operation.

Function for Reading and Writing Data from a
Memory Card

Data in I/O memory in the CPU Unit can be written to a Memory Card in
CSV/TXT format. Data in CSV/TXT format in the Memory Card can be
read to I/O memory in the CPU Unit.

*3 Supported only by CJ2M CPU Unit with unit version 2.0 or later. A Pulse I/O Module must be mounted.

1-22

CJ2 CPU Unit Hardware User’s Manual

1 Overview

Communications
Peripheral
(USB) Port

Description
---

Peripheral Bus

Bus for communications with various kinds of Support Software running on a
personal computer. High-speed communications are supported.
---

Serial Port*4

Host Link commands or FINS commands placed between Host Link headers
and terminators can be sent from a host computer or PT to read/write I/O memory, read/control the operating mode, and perform other operations for PLC.

No-protocol Communications

I/O instructions for communications ports (such as TXD/RXD instructions) can
be used for data transfer with peripheral devices such as bar code readers and
printers.

NT Link Communications

I/O memory in the PLC can be allocated and directly linked to various PT functions, including status control areas, status notification areas, touch switches,
lamps, memory tables, and other objects.

Peripheral Bus

Bus for communications with various kinds of Support Software running on a
personal computer. High-speed communications are supported.

Serial Gateway

This gateway enables receiving and automatically converting FINS to the CompoWay/F.

Serial PLC Links*5

Data is exchanged between CPU Units using serial ports without communications programming. PTs set to the 1:N NT Link protocol can be included in the
network.
100Base-TX/10Base-T
Protocols: TCP/IP, UDP, ARP, ICMP (ping only), BOOTP

EtherNet/IP Port*6

Applications: FINS, CIP, SNTP, DNS (Client), FTP (Server)
CIP Communications
Service

Tag Data Links

Programless cyclic data exchanges with the devices on the EtherNet/IP network.

Message Communications

Any CIP commands can be received from the devices on the EtherNet/IP network.

FINS Communications
Service

Message Communications

Any FINS commands can be transferred with the devices on the EtherNet/IP
network.

*4 A Serial Option Board is required to use a serial port for the CJ2M-CPU3@ CPU Unit.
*5 A Serial Option Board is required to use the CJ2M-CPU3@ CPU Unit in Serial PLC Links.
*6 Supported only by CJ2H-CPU6@-EIP and CJ2M-CPU3@.

CJ2 CPU Unit Hardware User’s Manual

1-23

1
1-3-3 Function Specifications

Host Link (SYSWAY) Communications

1-3 Specifications

Function

1 Overview

Function
Interrupt

Scheduled Interrupts

Description
A task is executed at a specified interval.

Resetting and restarting with
MSKS(690)*7

When MSKS(690) is executed, the internal timer is restarted and the time to
first interrupt is set to a fixed value.

Reading present value of internal timer
with MSKS(690)*7

MSKS(690) can be used to read the time that has elapsed until the scheduled
interrupt is started or since the previous scheduled interrupt.

Power OFF Interrupts

A task can be executed when CPU Unit's power turns OFF.

I/O Interrupts

A task can be executed when an input signal is input to an Interrupt Input Unit.

External Interrupts

A task can be executed when interrupts are requested from a Special I/O Unit
or a CPU Bus Unit.

Input Interrupt Function*8

A task is started for an interrupt input from a Pulse I/O Module or for a highspeed counter input.

Input Interrupts

Interrupt tasks are executed when the interrupt input turns ON or turns OFF.
Direct Mode: An interrupt task is executed each time an input signal changes.
Counter Mode: Changes in the input signal are counted up or down and the
interrupt task is executed when the counter counts out. (The maximum
response frequency is 3 kHz.)

High-speed Counter Interrupts

An interrupt task is executed when preset comparison conditions for a highspeed counter are met.
Target-value comparison: The interrupt task is executed when the count
matches a specified value.
Range comparison: The interrupt task is executed when the count enters or
leaves a specified range of values.

High-speed Interrupt Function*9
Clock

Clock Function

Improves performance for executing interrupt tasks with certain restrictions.
Clock data is stored in memory.
Accuracy (Accuracy depends on the temperature.)
Ambient temperature of 55°C: −3.5 to +0.5 min error per month
Ambient temperature of 25°C: −1.5 to +1.5 min error per month
Ambient temperature of 0°C: −3 to +1 min error per month

Operation Start Time Storage

The time when operating mode was last changed to RUN mode or MONITOR
mode is stored.

Operation Stop Time Storage

The last time a fatal error occurred or the last time the operating mode was
changed to PROGRAM mode is stored.

Startup Time Storage

The time when the power was turned ON is stored.

Power Interruption Time Storage

The time when the power is turned OFF is stored.

Total Power ON Time Calculation

The total time that the PLC has been ON is stored in increments of 10 hours.

Power ON Clock Data Storage

A history of the times when the power was turned ON is stored.

User Program Overwritten Time Storage

The time that the user program was last overwritten is stored.

Parameter Date Storage

The time when the Parameter Area was overwritten is stored.

*7 Supported only by the CJ2M CPU Units.
*8 Pulse I/O Modules are supported only by CJ2M CPU Units with unit version 2.0 or later.
*9 Supported only by CJ2H CPU Units with unit version 1.1 or later.

1-24

CJ2 CPU Unit Hardware User’s Manual

1 Overview

Power
Supply
Management

Description

Memory Protection

Holding Area data, DM Area data, EM Area data, Counter Completion Flags,
and counter present values are held even when power is turned OFF. CIO
Area, Work Area, some Auxiliary Area data, and Timer Completion Flags, timer
present values, index registers, and data registers can be protected by turning
ON the IOM Hold Bit in the Auxiliary Area, and by also setting the IOM Hold Bit
to “Hold” in the PLC Setup.

1-3 Specifications

Function

Power OFF Detection Time Setting

The detection time for power interruptions can be set.
AC power supply: 10 to 25 ms (variable)
DC power supply: 2 to 5 ms (CJ1W-PD022) or 2 to 20 ms (CJ1W-PD025)

Power OFF Detection Delay Time

The detection of power interruptions can be delayed: 0 to 10 ms

Number of Power Interruptions Counter
Function Blocks

Debugging

The number of times power has been interrupted is counted.
Standard programming can be encapsulated as function blocks.

Languages in Function Block Definitions

Ladder programming or structured text

Online Editing

The program can be changed during operation (in MONITOR or PROGRAM
mode), except for block programming areas.

Force-Set/Reset

Specified bits can be set or reset.
A parameter can be set to enable force-setting/resetting bits in EM Area banks.
Force-setting/resetting is enabled for the specified bank and all the banks after
it.*10

Self-diagnosis and
Restoration

Differentiate Monitoring

ON/OFF changes in specified bits can be monitored.

Data Tracing

The specified I/O memory data can be stored in the trace memory in the CPU
Unit. The triggers can be set.

Continuous Tracing

The trace data can be uploaded during data tracing using the CX-Programmer.
This enables continuously logging the data by constantly uploading the trace
data.

Automatically starting tracing when operation starts

Data tracing can be automatically started when operation is started (i.e., when
the operating mode is changed from PROGRAM mode to MONITOR or RUN
mode).

Storing Location of Error when an Error
Occurs

The location and task number where execution stopped for a program error is
recorded.

Program Check

The programs can be checked for items such as no END instruction and
FALS/FAL errors at startup.

Error Log

A function is provided to store predefined error codes in CPU Unit, error information, and time at which the error occurred.

CPU Error Detection

CPU Unit WDT errors are detected.

User-defined Failure Diagnosis

Errors can be generated for user-specified conditions: Non-fatal errors (FAL)
and fatal errors (FALS).
Program section time diagnosis and program section logic diagnosis are supported (FPD instruction).

Load OFF Function

This function turns OFF all outputs from Output Units when an error occurs.

RUN Output

The RUN output from the CJ1W-PA205R turns ON while CPU Unit is in RUN
mode or MONITOR mode.

Basic I/O Load Short-circuit Detection

This function provides alarm information from Basic I/O Units that have load
short-circuit protection.

Failure Point Detection

The time and logic of an instruction block can be analyzes using the FPD
instruction.

CPU Standby Detection

This function indicates when the CPU Unit is on standby because all Special
I/O Units and CPU Bus Units have not been recognized at the startup in RUN
or MONITOR mode.

*10 Supported only by CJ2H CPU Units with unit version 1.2 or later and CJ2M CPU Units.

CJ2 CPU Unit Hardware User’s Manual

1-25

1-3-3 Function Specifications

(Not supported by the CJ1W-PD022.)

1 Overview

Function
Self-diagnosis and
Restoration
(Continued from
previous
page)

Non-fatal Error
Detection

Fatal Error
Detection

Description

System FAL Error Detection (User-defined nonfatal error)

This function generates a non-fatal (FAL) error when the user-defined conditions are met in program.

Duplicated Refreshing
Error Detection

This function detects an error when an immediate refreshing Instruction in an
interrupt task is competing with I/O refreshing of a cyclic task.

Basic I/O Unit Error Detection

This function detects the errors in Basic I/O Units.

Backup Memory Error
Detection

This function detects errors in the memory backup of the user programs and
parameter area (backup memory).

PLC Setup Error Detection

This function detects setting errors in the PLC Setup.

CPU Bus Unit Error Detection

This function detects an error when there is an error in data exchange between
the CPU Unit and a CPU Bus Unit.

Special I/O Unit Error
Detection

This function detects an error when there is an error in data exchange between
the CPU Unit and a Special I/O Unit.

Tag Memory Error Detection*11

This function detects errors in tag memory.

Battery Error Detection

This function detects an error when a battery is not connected to the CPU Unit
or when the battery voltage drops.

CPU Bus Unit Setting
Error Detection

This function detects an error when the model of a CPU Bus Unit in the registered I/O tables does not agree with the model that is actually mounted in the
PLC.

Special I/O Unit Setting
Error Detection

This function detects an error when the model of a Special I/O Unit in the registered I/O tables does not agree with the model of Unit that is actually mounted.

Option Board Error Detection*12

This function detects the errors in Serial Option Board mounting status.

Memory Error Detection

This function detects errors that occur in memory of the CPU Unit.

I/O Bus Error Detection

This function detects when an error occurs in data transfers between the Units
mounted in Rack slots and the CPU Unit and detects when the End Cover is
not connected to the CPU Rack or an Expansion Rack.

Unit/Rack Number Duplication Error

This function detects an error when the same unit number is set for two or more
Units, the same word is allocated to two or more Basic I/O Units, or the same
rack number is set for two or more Racks.

Too Many I/O Points Error
Detection

This function detects an error when the total number of I/O points set in the I/O
tables or the number of Units per Rack exceeds the specified range.

I/O Setting Error Detection

The registered I/O tables are used to detect errors if the number of Units in the
registered I/O tables does not agree with the actual number of Units that are
connected or an Interrupt Unit has been connected in the wrong position.

*11 Supported only by CJ2H-CPU6@-EIP and CJ2M-CPU3@.
*12 Supported only by the CJ2M-CPU3@.

1-26

CJ2 CPU Unit Hardware User’s Manual

1 Overview

Self-diagnosis and
Restoration
(Continued from
previous
page)

Program Error Detection

This function detects errors in programs.

Instruction Processing
Error Detection

This function detects an error when the given data value is invalid when executing an instruction, or execution of instruction between tasks was attempted.

Indirect DM/EM BCD
Error Detection

This function detects an error when an indirect DM/EM address in BCD mode
is not BCD.

Illegal Area Access
Error Detection

This function detects an error when an attempt is made to access an illegal
area with an instruction operand.

No END Error Detection

This function detects an error when there is no END instruction at the end of
the program.

Task Error Detection

This function detects an error when there are no tasks that can be executed in
a cycle, there is no program for a task, or the execution condition for an interrupt task was met but there is no interrupt task with the specified number.

Differentiation Overflow Error Detection

This function detects an error when too many differentiated instructions are
entered or deleted during online editing (131,072 times or more).

Invalid Instruction Error
Detection

This function detects an error when an attempt is made to execute an instruction that is not defined in the system.

User Program Area
Overflow Error Detection

This function detects an error when instruction data is stored after the last
address in user program area.

Cycle Time Exceeded
Error Detection

This function monitors the cycle time (10 to 40,000 ms) and stops the operation
when the set value is exceeded.

System FALS Error Detection (User-defined Fatal
Error)

This function generates a fatal (FALS) error when the user-defined conditions
are met in program.

Version Error Detection

This function detects an error when a user program includes a function that is
not supported by the current unit version.

Memory Card Transfer
Error Detection

This function detects an error when the automatic file transfer from Memory
Card fails at startup.

Memory Self-restoration Function

This function performs a parity check on the user program area and self-restoration data.*13

Simple Backup Function

This function collectively backs up the data in CPU Unit (user programs,
parameters, and I/O memory) and internal backup data in the I/O Units.

Unsolicited Communications

A function that allows the PLC to use Network Communications Instruction to
send required FINS commands to a computer connected via a Host Link

Remote Programming and Monitoring

Host Link communications can be used for remote programming and remote
monitoring through a Controller Link, Ethernet, DeviceNet, or SYSMAC LINK
Network. Communications across network layers can be performed.
Controller Link or Ethernet: 8 layers
DeviceNet or SYSMAC LINK: 3 layers

Automatic Online Connection via
Network

Security

Read Protection using Password

Direct
Serial
Connection

This function enables automatically connecting to the PLC online when the CXProgrammer is directly connected by a serial connection (peripheral (USB) port
or serial port).

Via Networks

This function enables connecting the CX-Programmer online to a PLC that is
connected via an EtherNet/IP network.
This function protects reading and displaying programs and tasks using passwords.
Write protection: Set using the DIP switch.
Read protection: Set a password using the CX-Programmer.

FINS Write Protection

This function prohibits writing by using FINS commands sent over the network.

Unit Name Function

This function allows the users to give any names to the Units. Names are verified at online connection to prevent wrong connection

Hardware ID Using Lot Numbers

This function sets operation protection by identifying hardware using the user
programs according to lot numbers stored in the Auxiliary Area.

*13 This function can be used only with CJ2H CPU Units.

CJ2 CPU Unit Hardware User’s Manual

1-27

1
1-3-3 Function Specifications

Maintenance

Fatal Error
Detection

Description

1-3 Specifications

Function

1 Overview

1-28

CJ2 CPU Unit Hardware User’s Manual

Basic System Configuration and
Devices

This section describes the basic system configuration and devices used in a CJ2 PLC.
The CJ Series supports the following two types of system configuration.
• Basic System Configuration:
System consisting of CPU Rack and Expansion Racks.
• Expanded System Configuration:
System connected via CPU Unit built-in serial port and PLC Units, such as Communications Units.

2-1 Basic System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-1-1
2-1-2
2-1-3
2-1-4
2-1-5
2-1-6

Basic System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
CPU Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Expansion Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Configuration Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Calculating Unit Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Calculating Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

2-2 Expanded System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
2-2-1
2-2-2

CJ2 CPU Unit Hardware User’s Manual

Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Communications Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

2-1

2 Basic System Configuration and Devices

2-1
2-1-1

Basic System Configuration
Basic System Configuration
z CPU Rack
A CPU Rack can consist of a CJ2 CPU Unit, a CJ-series Power Supply Unit, CJ-series Configuration
Units (Basic I/O Units, Special I/O Units, CPU Bus Units), and a CJ-series End Cover. The same CJseries Power Supply Units and CJ-series Configuration Units that are used with CJ1 CPU Units are
used with CJ2 CPU Units.* An I/O Control Unit is required to connect a CJ-series Expansion Rack.
A Memory Card is optional.
* All CJ-series Units can be used as Configuration Units, but only Units that specifically support the CJ2 CPU Unit
can access the expanded portions of the I/O memory areas of the CJ2 CPU Units (i.e., A960 to A1471, A10000
to A11535, and EM banks D to 18). Only the following CJ1 Units specifically support the CJ2 CPU Units.
• EtherNet/IP Unit: CJ1W-EIP21
• Position Control Units: CJ1W-NC214, CJ1W-NC234, CJ1W-NC281, CJ1W-NC414, CJ1W-NC434, CJ1WNC481, and CJ1W-NC881
• Analog Input Unit: CJ1W-AD042
• Analog Output Unit: CJ1W-DA042V
• Serial Communications Units: CJ1W-SCU22, CJ1W-SCU32, and CJ1W-SCU42

z Expansion Racks
A CJ-series Expansion Rack can be connected to the CPU Rack or another CJ-series Expansion
Rack. An Expansion Rack can consist of an I/O Interface Unit, a Power Supply Unit, Basic I/O Units,
Special I/O Units, CPU Bus Units, and an End Cover.
CPU Rack
Power Supply Unit
CPU Unit
Memory Card

I/O Control Unit

Expansion Rack
Power Supply Unit

2-2

I/O Interface Unit

Configuration Units
(Basic I/O Units, Special
I/O Units, CPU Bus Units)

End Cover

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

CPU Rack
The CPU Rack consists of a CJ2 CPU Unit, a CJ-series Power Supply Unit, CJ-series Configuration
Units, and a CJ-series End Cover. Up to 10 Configuration Units can be connected.

z CJ2H CPU Units
I/O Control Unit*1
Power Supply Unit

CPU Unit

PA205R
SYSMAC
CJ2H
CPU64-EIP

RUN
ERR/ALM
INH
PRPHL
PROGRAMMABLE
COMM
CONTROLLER
BKUP

POWER

End Cover
MS
NS
COMM
100M
10M

OPEN

MCPWR

2-1 Basic System Configuration

2-1-2

BUSY

AC100-240V
INPUT
PERIPHERAL

L2/N

PORT

2-1-2 CPU Rack

RUN
OUTPUT
AC240V
DC24V

Configuration Units (10 max.)
(Basic I/O Units, Special I/O Units, CPU Bus Units)
Memory Card

*1 The I/O Control Unit is required only to connect an Expansion Rack. It must be connected next to the CPU
Unit.

z CJ2M CPU Units
Power Supply Unit

Pulse I/O
Modules*1

CPU Unit

I/O Control Unit*3

End Cover

PA205R
POWER

AC100-240V
INPUT
L2/N

RUN
OUTPUT
AC240V
DC24V

Configuration Units (10 max.)
Memory Card

RS-232C

RS-422A/485

*1 Up to two Pulse I/O Modules can be
connected to the left of the CPU Unit.
*2 CJ2M-CPU3@ only.
*3 The I/O Control Unit is required only
to connect an Expansion Rack. It
must be connected immediately to
the right of the CPU Unit.

Serial Option Board*2

Even though the CJ-series PLCs do not have Backplanes, the term “slot” is still used to refer to the
location of Units. Slot numbers are assigned in order to Units from left to right on the CPU Rack (slot 0,
slot 1, slot 2, etc.).

CJ2 CPU Unit Hardware User’s Manual

2-3

2 Basic System Configuration and Devices

Although the CJ-series PLCs do not require Backplanes, the term “slot” is still used to refer to the relative position of a Unit in the Rack. Slot numbers increase toward the right side of the Rack.
Name

Configuration

CJ-series CPU Unit
CPU Rack

CJ2H CPU Units
CJ2M CPU Units

Remarks
One required for every CPU Rack.
One required for every CPU Rack.

Pulse I/O Module (Can be
connected only
with a CJ2M
CPU Unit.)

Connected to use pulse I/O.
Up to two Pulse I/O Modules can be connected. They must be connected to the immediate left of the CPU Unit. The Pulse I/O Module closest to the CPU Unit is Pulse I/O Module 0 and the other
one is Pulse I/O Module 1.

Serial Option
Board (Can be
mounted only
with the CJ2MCPU3@.)

One Serial Option Board can be mounted in the CJ2M-CPU3@.

Memory Card

Install as required.

CJ-series Power Supply Unit

One required for every CPU Rack.

I/O Control Unit

Required to connect an Expansion Rack. Must be connected
immediately to the right of the CPU Unit.

Configuration
Units

A total of up to 10 Units can be connected to the CPU Rack and to
each of the Expansion Racks. (An error will occur if 11 or more
Units are connected.)

CJ-series Basic
I/O Units
CJ-series Special
I/O Units
CJ-series CPU
Bus Units

End
Cover

Must be connected to the right end of the CPU Rack. One End
Cover is provided with the CPU Unit.
A fatal error will occur if the End Cover is not connected.

2-4

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

z CJ2H CPU Units
Model
CJ2H-CPU68-EIP

I/O capacity
2,560 points

CJ2H-CPU67-EIP

Program
capacity

DM Area capacity

5 VDC

400 Ksteps

832 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 25 banks)

250 Ksteps

512 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 15 banks)

150 Ksteps

352 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 10 banks)

CJ2H-CPU65-EIP

100 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2H-CPU64-EIP

50 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

400 Ksteps

832 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 25 banks)

CJ2H-CPU67

250 Ksteps

512 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 15 banks)

CJ2H-CPU66

150 Ksteps

352 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 10 banks)

CJ2H-CPU65

100 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2H-CPU64

50 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

2,560 points

0.82*1

Weight

24 VDC
---

280 g
max.*2

2
2-1-2 CPU Rack

CJ2H-CPU66-EIP

CJ2H-CPU68

Current consumption
(A)

0.42*1

---

190 g
max.*2

*1 Increases by 0.15 A/Unit when an NT-AL001 Link Adapter is used.
Increases by 0.04 A/Unit when a CJ1W-CIF11 RS-422A Converter is used.
Increases by 0.20 A/Unit when an NV3W-M@20L Programmable Terminal is used.
*2 Includes the weight of the End Cover.

CJ2 CPU Unit Hardware User’s Manual

2-1 Basic System Configuration

Units

2-5

2 Basic System Configuration and Devices

z CJ2M CPU Units
I/O capacity

Program
capacity

2,560 points

60 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2M-CPU34

30 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2M-CPU33

20 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

CJ2M-CPU32

10 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

CJ2M-CPU31

5 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

60 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2M-CPU14

30 Ksteps

160 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 4 banks)

CJ2M-CPU13

20 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

CJ2M-CPU12

10 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

CJ2M-CPU11

5 Ksteps

64 Kwords
(DM: 32 Kwords, EM:
32 Kwords × 1 bank)

Model
CJ2M-CPU35

CJ2M-CPU15

2,560 points

DM Area capacity

Current consumption
(A)
5 VDC

Weight

24 VDC

0.7*1

---

190 g
max.*2, *3

0.5*1

---

130 g
max.*2, *3

2-6

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Model

Current consumption (A)

Specifications

5 VDC

24 VDC

Weight

CJ2M-MD211

Sinking outputs, MIL connector
10 inputs (including four interrupt/quickresponse inputs and two high-speed counter
inputs)
6 outputs (including two pulse outputs and
two PWM outputs)

0.08

---

70 g

CJ2M-MD212

Sourcing outputs, MIL connector
10 inputs (including four interrupt/quickresponse inputs and two high-speed counter
inputs)
6 outputs (including two pulse outputs and
two PWM outputs)

0.08

---

70 g

Model

Specifications

RS-232C
Option Board

CP1W-CIF01

Mounted in the Option
Board slot in the
CJ2M-CPU3@ to
enable using an RS232C port.
Maximum transmission distance: 15 m

RS-422A/485
Option Board

CP1W-CIF11

Mounted in the Option
Board slot in the
CJ2M-CPU3@ to
enable using an RS422A/485 port.
Maximum transmission distance: 50 m

Isolated RS422A/485
Option Board

CP1W-CIF12

Mounted in the Option
Board slot in the
CJ2M-CPU3@ to
enable using an RS422A/485 port.
Maximum transmission distance: 500 m

Serial communications
mode
Host Link, 1:N
NT Link, Noprotocol, Serial
PLC Link
Slave, Serial
PLC Link Master, Serial
Gateway converted to CompoWay/F, and
Tool Bus*

Current consumption
(A)
5 VDC

Weight

24 VDC

0.005 A

---

20 g

0.030 A

---

20 g

0.075 A

---

30 g

* The following modes cannot be used: 1:1 NT Link, Serial Gateway converted to Host Link FINS, 1:1 Link Master,
and 1:1 Link Slave.

z CJ-series Power Supply Units
Model

Power supply
voltage

Output capacity
5 VDC

Additional
functions

24 VDC

Weight

CJ1W-PA205R

100 to 240 VAC

5.0 A

0.8 A

RUN output

350 g max.

CJ1W-PA205C

100 to 240 VAC

4.6 A

0.8 A

Replacement
notification

400 g max.

CJ1W-PA202

100 to 240 VAC

2.8 A

0.4 A

---

200 g max.

CJ1W-PD025

24 VDC

5.0 A

0.8 A

---

335 g max.

CJ1W-PD022

24 VDC (noninsulated type)

2.0 A

0.4 A

---

130 g max.

CJ2 CPU Unit Hardware User’s Manual

2-7

2-1-2 CPU Rack

Serial Option Boards (CJ2M-CPU3@ Only)
Name

2-1 Basic System Configuration

Pulse I/O Modules (CJ2M CPU Unit Only)

2 Basic System Configuration and Devices

z Memory Cards
Model

Specifications

HMC-EF183

Flash memory, 128 MB

HMC-EF283

Flash memory, 256 MB

HMC-EF583

Flash memory, 512 MB

HMC-AP001

Memory Card Adapter (for PCMIA slot in personal computer)

z I/O Control Unit
Model

Specifications

Current consumption (A)
5 VDC

CJ1W-IC101

Required to connect a CJ-series Expansion Rack to a
CJ-series CPU Rack. Must be connected immediately to
the right of the CPU Unit. Connect to the I/O Interface
Unit (CJ1W-II101) on the first Expansion Rack with a
CS/CJ-series I/O Connecting Cable.

0.020 A

Weight

24 VDC
---

70 g max.

z End Cover
Model
CJ1W-TER01

Current consumption (A)

Specifications
Must be connected to the right end of the CPU Rack. (A
fatal error will occur if the End Cover is not connected to
the right end of the Rack.)*1

Included with
CPU Unit and I/O
Interface Unit.

Weight
---

*1 One End Cover is provided with the CPU Unit and with an I/O Interface Unit.

2-8

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Name
DIN Track

Model

Specifications

PFP-50N

Track length: 50 cm, height: 7.3 mm

PFP-100N

Track length: 1 m, height: 7.3 mm

PFP-100N2

Track length: 1 m, height: 16 mm

PFP-M

Stopper to prevent Units from moving on the track.
Two each are provided with the CPU Unit and with
an I/O Interface Unit.

Programming Device Connecting
Cable for peripheral (USB) port

Commercially available USB cable

USB 2.0 (or 1.1) cable (A connector - B connector), 5.0 m max.

Programming Device Connecting
Cables for serial port

XW2Z-200S-CV

Connects to IBM PC/AT computer
Uses static-resistant connector.

XW2Z-500S-CV

Connects to IBM PC/AT computer
D-Sub 9-pin connector (Cable length: 5.0 m).
Uses static-resistant connector.

XW2Z-200S-V

Connects to IBM PC/AT computer
D-Sub 9-pin connector. (Cable length: 2.0 m)

XW2Z-500S-V

Connects to IBM PC/AT computer
D-Sub 9-pin connector. (Cable length: 5.0 m)

Connecting Cable for EtherNet/IP
port*

Commercially available 100Base-TX
twisted-pair cable

Recommended: Fujikura F-LINK-E 0.5 mm × 4P
Twisted-pair cable with RJ45 Modular Connectors
on both ends. Connect between EtherNet/IP Unit
or built-in EtherNet/IP port and Ethernet switch.
Use STP (shielded twisted-pair) cable of category
5 or 5e.

Communications Adaptor (RS-422A
Converter)

CJ1W-CIF11

Current consumption at 5 V: 0.04 A

RS-232C/RS-422A Link Adapter

NT-AL001

Maximum distance: 500 m; only RS-422A is supported.
Current consumption at 5 V: 0.15 A

MIL Flat Cable Connector for Pulse
I/O Modules

XG4M-4030-T

40-pin MIL connector, pressure-welded type (This
connector is used by user to make a cable.)

Connector-Terminal Block Conversion Units

XW2D-40G6

Slim model (M3 screw terminals), 40 terminals

XW2B-40G5

Through model (M3 screw terminals), 40 terminals

XW2B-40G4

Through model (M3.5 screw terminals), 40 terminals

XW2Z-100K

Cable length: 1 m

Connector-Terminal Block Conversion Cables

Servo Relay Units

XW2Z-150K

Cable length: 1.5 m

XW2Z-200K

Cable length: 2 m

XW2Z-300K

Cable length: 3 m

XW2Z-500K

Cable length: 5 m

XW2B-20J6-8A

To connect one axis

XW2B-20J6-9A

To connect two axes

* CJ2H-CPU6@-EIP or CJ2M-CPU3@ only.

CJ2 CPU Unit Hardware User’s Manual

2
2-1-2 CPU Rack

D-Sub 9-pin connector (Cable length: 2.0 m).

2-1 Basic System Configuration

Others

2-9

2 Basic System Configuration and Devices

Name
Servo
Relay Unit
Connection
Cables

OMNUC
G Series

OMNUC
G5 Series

SMARTSTEP 2
Series

SMARTSTEP A
Series

SMARTSTEP
Junior

OMNUC
W Series

Model
CJ2M Pulse
I/O Module
side

XW2Z-050J-A33

Cable length: 0.5 m

XW2Z-100J-A33

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B31

Cable length: 1 m

XW2Z-200J-B31

Cable length: 2 m

CJ2M Pulse
I/O Module
side

XW2Z-050J-A33

Cable length: 0.5 m

XW2Z-100J-A33

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B31

Cable length: 1 m

XW2Z-200J-B31

Cable length: 2 m

CJ2M Pulse
I/O Module
side

XW2Z-050J-A33

Cable length: 0.5 m

XW2Z-100J-A33

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B32

Cable length: 1 m

XW2Z-200J-B32

Cable length: 2 m

CJ2M Pulse
I/O Module
side

XW2Z-100J-A26

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B5

Cable length: 1 m

XW2Z-200J-B5

Cable length: 2 m

CJ2M Pulse
I/O Module
side

XW2Z-100J-A26

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B17

Cable length: 1 m

XW2Z-200J-B17

Cable length: 2 m

CJ2M Pulse
I/O Module
side

XW2Z-050J-A27

Cable length: 0.5 m

XW2Z-100J-A27

Cable length: 1 m

Servo Drive
side

XW2Z-100J-B4

Cable length: 1 m

XW2Z-200J-B4

Cable length: 2 m

CJ1W-BAT01

For CJ2 CPU Unit

CXONE-AL@@C-V@
CXONE-AL@@D-V@

CX-One is an FA Integrated Tool Package that
integrates the PLC, network, HMI, components,
motion control, and PLC-based process control.

Battery Set
Support Software

Specifications

CX-One

•
•
•
•
•
•
•
•
•
•
•
•
•
•

2-10

CX-Programmer
CX-Integrator
SwitchBox Utility
CX-Simulator
CX-Protocol
CX-Designer
CX-Thermo
CX-Position
CX-Motion/CX-Motion-NCF/CX-Motion-MCH
CX-Drive
CX-Process Tool
NS Faceplate Auto-Builder
CX-FLnet
Network Configurator

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Expansion Racks
CJ-series Expansion Racks can be connected to the CPU Rack to expand the number of Units in the
System beyond the CPU Rack. Up to 10 I/O Units can be mounted to each Expansion Rack and a total
of 3 Expansion Racks can be connected.
Mount an I/O Control Unit immediately to the right of the CPU Unit, and mount the I/O Interface Unit
immediately to the right of the Power Supply Unit on the Expansion Rack. Mounting them in other locations may cause malfunctions.

2-1 Basic System Configuration

2-1-3

10 Units max.

2
CPU Rack

CS/CJ-series I/O Connecting Cable
30 cm, 70 cm, 2 m, 3 m, 5 m, 10 m, 12 m

CPU
Unit

I/O Control Unit
End Cover

CJ-series
Expansion Rack

Power
Supply
Unit

Total cable
length:
12 m

Expansion
Racks:
3 maximum

CS/CJ-series I/O Connecting Cable
30 cm, 70 cm, 2 m, 3 m, 5 m, 10 m, 12 m

I/O Interface Unit

CS/CJ-series I/O Connecting Cables
Cable
Length
CS1W-CN313
0.3 m
CS1W-CN713
0.7 m
CS1W-CN223
2m
CS1W-CN323
3m
CS1W-CN523
5m
CS1W-CN133
10 m
CS1W-CN133B2
12 m

I/O Interface Unit

CJ-series
Expansion Rack

Power
Supply
Unit

10 Units max.

Maximum Number of Expansion Racks
Expansion pattern
CJ-series CPU Rack plus
CJ-series Expansion Racks

CJ2 CPU Unit Hardware User’s Manual

Maximum number of Racks
3 Racks

Remarks
The total length of I/O Connecting Cable
between the CPU Rack and an Expansion Rack,
and between all Expansion Racks, must be no
more than 12 m.

2-11

2-1-3 Expansion Racks

Power
Supply
Unit

2 Basic System Configuration and Devices

Units
z Units for CJ-series Expansion Racks
Rack
CJ-series
Expansion
Racks

Configuration

Remarks

CJ-series Power Supply Unit
I/O Interface Unit (one End Cover
included.)
CJ-series Basic I/O Units

One required for each Expansion Rack. (An I/O Control
Unit is required on the CJ-series CPU Rack.)
A total of up to 10 Units can be connected to the CPU
Rack and to each of the Expansion Racks. (An error will
occur if 11 or more Units are connected.)

CJ-series Special I/O Units
CJ-series CPU Bus Units
End Cover

Must be connected to the right end of the Expansion
Rack. (One End Cover is provided with the I/O Interface
Unit. A fatal error will occur if the End Cover is not connected.)

CS/CJ-series I/O Connecting Cable

Required to connect the I/O Interface Unit to the I/O
Control Unit or previous I/O Interface Unit.

z CJ-series Power Supply Unit
Model

Output capacity

Power supply
voltage

5 VDC

Functions

24 VDC

CJ1W-PA205R

100 to 240 VAC

5.0 A

0.8 A

RUN output

CJ1W-PA205C

100 to 240 VAC

5.0 A

0.8 A

Replacement notification

CJ1W-PA202

100 to 240 VAC

2.8 A

0.4 A

---

CJ1W-PD025

24 VDC

5.0 A

0.8 A

---

CJ1W-PD022

24 VDC
(non-insulated type)

2.0 A

0.4 A

---

z I/O Interface Unit
Model

Specifications

Current consumption (A)
5 VDC

CJ1W-II101

One Interface Unit is required for each CJ-series Expansion Rack. One End Cover is provided with each Unit.

0.13 A

Weight

24 VDC
---

130 g
max.*1

*1 Includes the weight of the End Cover.

2-12

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Model
CJ1W-TER01

Specifications
Must be connected to the right end of the CPU Rack. (A
fatal error will occur if the End Cover is not connected to
the right end of the Rack.)

Current consumption (A)
Included with the
CPU Unit or I/O
Interface Unit.

Weight
---

One End Cover is provided with the CPU Unit and with an
I/O Interface Unit.

z CS/CJ-series I/O Connecting Cables
Model
CS1W-CN313
CS1W-CN713

Cable length
0.3 m
0.7 m
2m

CS1W-CN323

CS1W-CN523

CS1W-CN133

10 m

CS1W-CN133B2

12 m

CJ2 CPU Unit Hardware User’s Manual

2
2-1-3 Expansion Racks

CS1W-CN223

Specifications
An I/O Connecting Cable connects an I/O Control Unit (CJ1W-IC101) to an
I/O Interface Unit (CJ1W-II101), or connects an I/O Interface Unit to
another I/O Interface Unit.

2-1 Basic System Configuration

z End Cover

2-13

2 Basic System Configuration and Devices

2-1-4

Configuration Units

Maximum Number of Units
A maximum of 10 Units can be connected to the CPU Rack for a CJ2 CPU Unit or to an Expansion
Rack. There are no restrictions in the number of each model of Unit based on location.
Note A fatal error will occur and the CPU Unit will not operate if more than the allowable number of Units is connected to a CJ2 CPU Rack or to an Expansion Rack.

Models of Configuration Units
The Configuration Units with which the CJ2 CPU Unit can exchange data are classified into three
groups. The number of Units that can be mounted depends on the type of Unit.
Units

Description

Number of
mountable Units

Basic I/O Units

Basic I/O Units are used for discrete inputs and
outputs.

Identified by the
CPU Unit according to mounting
position.

Up to 40 Basic I/O
Units can be
mounted.

Special I/O Units

Special I/O Units are more advanced than Basic
I/O Units. They support functions other than discrete inputs and outputs.

Identified by the
CPU Unit using
unit numbers 0 to
95 set with the
rotary switches on
the front panel of
the Unit.

Up to 40 Special
I/O Units can be
mounted.
(Depending on the
model, more than
one unit number is
used for one Unit.)

Identified by the
CPU Unit using
unit number 0 to F
Examples:
Network Communications Units and Serial Com- set with the rotary
switch on the front
munications Units
panel of the Unit.
CPU Bus Units have a larger area for exchanging data with the CPU Unit than Special I/O
Units.

Up to 16 CPU Bus
Units can be
mounted.

Examples:
Analog I/O Units and High-speed Counter Units
Special I/O Units have a smaller area for
exchanging data with the CPU Unit than CPU
Bus Units (including Network Communications
Units).
CPU Bus Unit

2-14

Unit identification method

CPU Units are advanced units that exchange
data with the CPU Unit via the CPU bus.

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

z CJ-series Basic I/O Units
Input Units
Name

Specifications

Model

Number of
bits allocated

Current consumption
(A)
5 VDC

Weight

24 VDC

CJ1W-ID201

16*1

0.08

---

110 g max.

Terminal block
24 VDC, 16 inputs

CJ1W-ID211*2

0.08

---

110 g max.

CJ1W-ID212*2

0.13

---

110 g max.

Fujitsu-compatible connector
24 VDC, 32 inputs

CJ1W-ID231*3

0.09

---

70 g max.

MIL connector
24 VDC, 32 inputs

CJ1WID232*2*3

0.09

---

70 g max.

CJ1WID233*2*3

0.20

---

70 g max.

Fujitsu-compatible connector
24 VDC, 64 inputs

CJ1W-ID261*3

0.09

---

110 g max.

MIL connector

CJ1W-ID262*3

0.09

---

110 g max.

200 to 240 VAC,
8 inputs

CJ1W-IA201

16*1

0.08

---

130 g max.

100 to 120 VAC,
16 inputs

CJ1W-IA111

0.09

---

130 g max.

Interrupt Input
Units

24 VDC, 16 inputs

CJ1W-INT01*4

0.08

---

110 g max.

Quickresponse
Input Units

24 VDC, 16 inputs

CJ1W-IDP01

0.08

---

110 g max.

B7A Interface
Units

64 inputs

CJ1W-B7A14

0.09

---

80 g max.

24 VDC, 64 inputs
AC Input
Units

*1 Although 16 I/O bits are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a
16-point I/O Unit in the I/O tables.
*2 The ON/OFF response time for the CJ1W-ID212/CJ1W-ID233 is shorter than for the CJ1W-ID211/CJ1WID232, as shown below.
• ON response time: 20 µs improved to 15 µs
• OFF response time: 400 µs improved to 90 µs
*3 The cable-side connector is not provided with Units equipped with cables. Purchase the connector separately
(Refer to 5-3-3 Wiring Basic I/O Units with Connectors.), or use an OMRON Connector- Terminal Block Conversion Unit or I/O Terminal (Refer to 5-3-4 Connecting to Connector-Terminal Block Conversion Units or I/O
Relay Terminals.).
*4 An Interrupt Input Unit can be connected only in a CJ-series CPU Rack. Connect the Interrupt Input Units in
following slots on the CPU Rack. An I/O setting error will occur if an Interrupt Input Unit is connected in other
positions on the CPU Rack or to any position on an Expansion Rack. Up to two Interrupt Input Units can be
connected.
• CJ2H-CPU6@-EIP: Slots 0 to 3
• CJ2H-CPU6@ or CJ2M-CPU@@: Slots 0 to 4

CJ2 CPU Unit Hardware User’s Manual

2-15

2
2-1-4 Configuration Units

Terminal block
12 to 24 VDC, 8 inputs

DC Input
Units

2-1 Basic System Configuration

Configuration Units

2 Basic System Configuration and Devices

Output Units
Name
Relay Output Units

Triac Output Unit
Transistor Output Units

Sinking
outputs

Sourcing outputs

B7A Interface Units

Specifications

Model

Current consumption
(A)

Number
of bits
allocated

5 VDC

Weight

24 VDC

Terminal block, 250 VAC/24 VDC,
2 A; 8 points, independent contacts

CJ1W-OC201

16*1

0.09

0.048
(0.006 ×
Number of ON
outputs)

140 g max.

Terminal block, 250 VAC/24 VDC,
2 A; 16 points

CJ1W-OC211

0.11

0.096
(0.006 ×
Number of ON
outputs)

170 g max.

Terminal block, 250 VAC, 0.6 A;
8 points

CJ1W-OA201

16*1

0.22

---

150 g max.

Terminal block, 12 to 24 VDC,
2 A; 8 outputs

CJ1W-OD201

16*1

0.09

---

110 g max.

Terminal block, 12 to 24 VDC,
0.5 A; 8 outputs

CJ1W-OD203

16*1

0.10

---

110 g max.

Terminal block, 12 to 24 VDC,
0.5 A; 16 outputs

CJ1W-OD211*2

0.10

---

110 g max.

Terminal block, 24 VDC,
0.5 A; 16 outputs

CJ1W-OD213*2

0.15

---

110 g max.

Fujitsu-compatible connector, 12
to 24 VDC, 0.5 A; 32 outputs

CJ1W-OD231*3

0.14

---

70 g max.

MIL connector, 12 to 24 VDC,
0.5 A; 32 outputs

CJ1WOD233*2*3

0.14

---

70 g max.

MIL connector, 24 VDC,
0.5 A; 32 outputs

CJ1WOD234*2*3

0.22

---

70 g max.

Fujitsu-compatible connector, 12
to 24 VDC, 0.3 A; 64 outputs

CJ1W-OD261*3

0.17

---

110 g max.

MIL connector, 12 to 24 VDC,
0.3 A; 64 outputs

CJ1W-OD263*3

0.17

---

110 g max.

Terminal block, 24 VDC, 2 A;
8 outputs, load short-circuit protection and disconnected line
detection

CJ1W-OD202

16*1

0.11

---

120 g max.

Terminal block, 24 VDC, 0.5 A;
8 outputs, load short-circuit protection

CJ1W-OD204

16*1

0.10

---

120 g max.

Terminal block, 24 VDC, 0.5 A;
16 outputs, load short-circuit protection

CJ1W-OD212

0.10

---

120 g max.

MIL connector, 24 VDC, 0.5 A;
32 outputs, load short-circuit protection

CJ1W-OD232*3

0.15

---

80 g max.

MIL connector, 12 to 24 VDC,
0.3 A; 64 outputs

CJ1W-OD262*3

0.17

---

110 g max.

64 outputs

CJ1W-B7A04

0.07

---

80 g max.

2-16

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Name
24-VDC
Input/
Transistor Output Units

Sinking

Specifications
Fujitsu-compatible
connector

Current consumption (A)

CJ1W-MD231*1

0.13

---

90 g max.

CJ1W-MD261*1

0.14

---

110 g max.

CJ1W-MD233*1

0.13

---

90 g max.

CJ1W-MD263*1

0.14

---

110 g max.

CJ1W-MD232*1

0.13

---

80 g max.

CJ1W-MD563*1

0.19

---

110 g max.

CJ1W-B7A22

0.07

---

80 g max.

5 VDC

Weight

24 VDC

Inputs:
24 VDC, 16 inputs
Outputs: 12 to
24 VDC, 0.5 A;
16 outputs
Fujitsu-compatible
connector
Inputs:
24 VDC, 32 inputs
Outputs: 12 to
24 VDC, 0.3 A;
32 outputs
MIL connector
Inputs: 24 VDC,
16 inputs
Outputs: 12 to
24 VDC, 0.5 A;
16 outputs
MIL connector
Inputs: 24 VDC,
32 inputs
Outputs: 12 to
24 VDC, 0.3 A;
32 outputs
Sourcing

MIL connector
Inputs: 24 VDC,
16 inputs
Outputs: 24 VDC,
0.5 A; 16 outputs
Load-short circuit
protection

TTL I/O Units

MIL connector
Inputs: TTL (5 VDC),
32 inputs
Outputs: TTL
(5 VDC, 35 mA),
32 outputs

B7A Interface Units

32 inputs, 32 outputs

*1 The cable-side connector is not provided with Units equipped with cables. Purchase the connector separately
(Refer to 5-3-3 Wiring Basic I/O Units with Connectors.), or use an OMRON Connector- Terminal Block Conversion Unit or I/O Terminal (Refer to 5-3-4 Connecting to Connector-Terminal Block Conversion Units or I/O
Relay Terminals.).

CJ2 CPU Unit Hardware User’s Manual

2-17

2
2-1-4 Configuration Units

Number of
bits allocated

Model

2-1 Basic System Configuration

Mixed I/O Units

2 Basic System Configuration and Devices

z CJ-series Special I/O Units

Type

Special I/O
Units

Name

Specifications

Model

Number of
words allocated
(CIO 2000 to
CIO 2959)

Number of
words allocated
(D20000 to
D29599)

Unit No.

Number
of
moun
table
Units

Current consumption (A)
Weight
5
VDC

24
VDC

General-purpose Universal Analog
Input Unit

4 inputs, fully universal

CJ1W-AD04U

10 words

100 words

0 to 95

40
Units

0.32

---

150 g max.

Analog Input
Units

8 inputs (4 to 20 mA,
1 to 5 V, etc.)

CJ1W-AD081-V1

10 words

100 words

0 to 95

40
Units

0.42

---

140 g max.

4 inputs (4 to 20 mA,
1 to 5 V, etc.)

CJ1W-AD041-V1

10 words

100 words

0 to 95

40
Units

0.42

---

140 g max.

4 inputs (4 to 20 mA,
1 to 5 V, etc.)

CJ1W-AD042

10 words

100 words

0 to 95

40
Units

0.52

---

150 g max.

4 outputs (1 to 5 V,
4 to 20 mA, etc.)

CJ1W-DA041

10 words

100 words

0 to 95

40
Units

0.12

---

150 g max.

2 outputs (1 to 5 V,
4 to 20 mA, etc.)

CJ1W-DA021

10 words

100 words

0 to 95

40
Units

0.12

---

150 g max.

8 outputs (1 to 5 V,
0 to 10 V, etc.)

CJ1W-DA08V

10 words

100 words

0 to 95

40
Units

0.14

---

150 g max.

8 outputs (4 to
20 mA)

CJ1W-DA08C

10 words

100 words

0 to 95

40
Units

0.14

---

150 g max.

4 outputs (1 to 5 V,
0 to 10 V, etc.)

CJ1W-DA042V

10 words

100 words

0 to 95

40
Units

0.40

---

150 g max.

4 inputs (1 to 5 V, 4 to
20 mA, etc.)

CJ1W-MAD42

10 words

100 words

0 to 95

40
Units

0.58

---

150 g max.

Analog Output Units

Analog I/O
Unit

2 outputs (1 to 5 V,
4 to 20 mA, etc.)

2-18

Isolated-type
High-resolution Universal Input Unit

4 inputs, fully universal Resolution:
1/256,000, 1/64,000,
1/16,000

CJ1W-PH41U

10 words

100 words

0 to 95

40
Units

0.30

---

150 g max.

Isolated-type
Thermocouple Input
Units

4 thermocouple inputs

CJ1W-PTS51

10 words

100 words

0 to 95

40
Units

0.25

---

150 g max.

2 thermocouple inputs

CJ1W-PTS15

10 words

100 words

0 to 95

40
Units

0.18

---

150 g max.

Isolated-type
Resistance
Thermometer Input
Units

4 resistance thermometer inputs

CJ1W-PTS52

10 words

100 words

0 to 95

40
Units

0.25

---

150 g max.

2 resistance thermometer inputs

CJ1W-PTS16

10 words

100 words

0 to 95

40
Units

0.18

---

150 g max.

Direct Current Input
Unit

DC voltage or DC current, 2 inputs

CJ1W-PDC15

10 words

100 words

0 to 95

40
Units

0.18

---

150 g max.

Temperature
Control Units

4 control loops, thermocouple inputs, NPN
outputs

CJ1W-TC001

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

4 control loops, thermocouple inputs, PNP
outputs

CJ1W-TC002

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

2 control loops, thermocouple inputs, NPN
outputs, heater burnout detection

CJ1W-TC003

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

2 control loops, thermocouple inputs, PNP
outputs, heater burnout detection

CJ1W-TC004

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Special I/O
Units

Name

Temperature
Control Units

Model

Unit No.

Number
of
moun
table
Units

Current consumption (A)
Weight
5
VDC

24
VDC

4 control loops, temperature- resistance
thermometer inputs,
NPN outputs

CJ1W-TC101

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

4 control loops, temperature- resistance
thermometer inputs,
PNP outputs

CJ1W-TC102

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

2 control loops, temperature-resistance
thermometer inputs,
NPN outputs, heater
burnout detection

CJ1W-TC103

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

2 control loops, temperature-resistance
thermometer inputs,
PNP outputs, heater
burnout detection

CJ1W-TC104

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.25

---

150 g max.

1 axis, pulse output;
open collector output

CJ1W-NC113

10 words

100 words

0 to 95

40
Units

0.25

---

100 g max.

2 axes, pulse outputs;
open collector outputs

CJ1W-NC213

10 words

100 words

0 to 95

40
Units

0.25

---

100 g max.

CJ1WNC214*1*2

18 words*3

None

0 to 94
(uses
words for
2 unit
numbers)

5
Units/
Rack

0.27

---

170 g max.

CJ1W-NC413

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.36

---

150 g max.

CJ1WNC414*1*2

18 words*3

None

0 to 94
(uses
words for
2 unit
numbers)

5
Units/
Rack

0.31

---

220 g max.

1 axis, pulse output;
line driver output

CJ1W-NC133

10 words

100 words

0 to 95

40
Units

0.25

---

100 g max.

2 axes, pulse outputs;
line driver outputs

CJ1W-NC233

10 words

100 words

0 to 95

40
Units

0.25

---

100 g max.

CJ1WNC234*1*2

18 words*3

None

0 to 94
(uses
words for
2 unit
numbers)

5
Units/
Rack

0.27

---

170 g max.

CJ1W-NC433

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.36

---

150 g max.

CJ1WNC434*1*2

18 words*3

None

0 to 94
(uses
words for
2 unit
numbers)

5
Units/
Rack

0.31

---

220 g max.

CJ1W-SP001

None

---

50 g max.

4 axes, pulse outputs;
open collector outputs

4 axes, pulse outputs;
line driver outputs

Space Unit*4

CJ2 CPU Unit Hardware User’s Manual

2-19

2
2-1-4 Configuration Units

Position Control Units

Specifications

Number of
words allocated
(D20000 to
D29599)

2-1 Basic System Configuration

Type

Number of
words allocated
(CIO 2000 to
CIO 2959)

2 Basic System Configuration and Devices

Type

Special I/O
Units

*2
*3

Name

ID Sensor
Units

Specifications

Model

Number of
words allocated
(CIO 2000 to
CIO 2959)

Number of
words allocated
(D20000 to
D29599)

Unit No.

Number
of
moun
table
Units

Current consumption (A)
Weight
5
VDC

24
VDC

V600-series singlehead type

CJ1W-V600C11

10 words

100 words

0 to 95

40
Units

0.26

0.12

120 g max.

V600-series two-head
type

CJ1W-V600C12

20 words

200 words

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.32

0.24

130 g max.

V680-series singlehead type

CJ1W-V680C11

10 words

100 words

0 to 95

40
Units

0.26

0.13

120 g max.

V680-series two-head
type

CJ1W-V680C12

20 words

200 words

0 to 94

40
Units

0.32

0.26

130 g max.

High-speed
Counter Unit

Number of counter
channels: 2, Maximum
input frequency:
500 kHz, line driver
compatible*5

CJ1W-CT021

40 words

400 words

0 to 92
(uses
words for
4 unit
numbers)

24
Units

0.28

---

100 g max.

CompoBus/S Master Units

CompoBus/S remote
I/O, 256 bits max.

CJ1W-SRM21

10 words or
20 words

None

0 to 95 or
0 to 94

40
Units

0.15

---

66 g max.*6

CompoNet
Master Unit

CompoNet remote I/O

CJ1W-CRM21

Communications
mode No. 0:
128 inputs/
128 outputs for
Word Slaves

20 words

None

0 to 94
(uses
words for
2 unit
numbers)

40
Units

0.40

---

Communications
mode No. 1:
256 inputs/
256 outputs for
Word Slaves

40 words

None

0 to 92
(uses
words for
4 unit
numbers)

24
Units

0.40

---

Communications
mode No. 2:
512 inputs/
512 outputs for
Word Slaves

80 words

None

0 to 88
(uses
words for
8 unit
numbers)

12
Units

0.40

---

Communications
mode No. 3:
256 inputs/
256 outputs for
Word Slaves and
128 inputs/
128 outputs for Bit
Slaves

80 words

None

0 to 88
(uses
words for
8 unit
numbers)

12
Units

0.40

---

Communications
mode No. 8:
1,024 inputs/
1,024 outputs for
Word Slaves and
256 inputs/
256 outputs for Bit
Slaves maximum

10 words

Depends on
setting

0 to 95
uses
words for
1 unit
number)

40
Units

0.40

---

130 g max.

With a CJ2 CPU Unit, up to 10 Configuration Units can be connected in the CPU Rack and in each Expansion Rack. The CJ1W-NC@@4,
however, must be counted as two Units. Configure the Units to satisfy the following formula.
Number of CJ1W-NC@@4 Units × 2 + Number of other Units ≤ 10
For example, if five CJ1W-NC@@4 Units are connected to one Rack, no other Units can be connected.
The Units must be mounted on the CPU Rack to use synchronous unit operation.

In addition to the words allocated in the Special I/O Unit Area, up to 144 words are allocated according to the number of axes and functions uses. Word allocations are set using the CX-Programmer.
The Space Unit is for Position Control Units.

If interrupts to the CPU Unit are used, mount the Interrupt Input Unit in one of the following slots on the CPU Rack.

• CJ2H-CPU6@-EIP: Slots 0 to 3
• CJ2H-CPU6@ or CJ2M-CPU@@: Slots 0 to 4
Includes the weight of accessory connectors.

2-20

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Type

CPU Bus
Units*1

Name

Specifications

Model

Number of
words allocated
(CIO 1500 to
CIO 1899)

Unit No.

Current consumption (A)

Maximum
number of
Units*1

5 VDC

24 VDC

Weight

High-speed
Analog Input
Unit

4 inputs: 80 µs/2 inputs,
160 µs/4 inputs

CJ1W-ADG41*2

25 words

0 to F

16 Units*3

0.65

---

150 g max.

Controller Link
Units

Wired data links

CJ1W-CLK23

25 words

0 to F

8 Units

0.35

---

110 g max.

Serial Communications Units

One RS-232C port and
one RS-422A/485 port

CJ1W-SCU41-V1

25 words

0 to F

16 Units*3

0.38*4

---

110 g max.

Two RS-232C ports

CJ1W-SCU21-V1

0.28*4

Two RS-422A/485 ports

CJ1W-SCU31-V1

0.38

Two RS-232C ports
High-speed models

CJ1W-SCU22

Two RS-422A/485 ports
High-speed models

2
160 g max.

CJ1W-SCU32

0.4

120 g max.

One RS-232C port and
one RS-422A/485 port
High-speed models

CJ1W-SCU42

0.36*4

140 g max.

Ethernet Units

100Base-TX, FINS
communications, socket
service, FTP server,
and mail communications

CJ1W-ETN21

25 words

0 to F

4 Units

0.37

---

100 g max.

EtherNet/IP Unit

Tag data links, FINS
communications, CIP
message communications, FTP server, etc.

CJ1W-EIP21

25 words

0 to F

0.41

---

94 g max.

FL-net Unit

100Base-TX cyclic
transmissions and message transmissions

CJ1W-FLN22

25 words

0 to F

4 Units

0.37

---

100 g max.

DeviceNet Unit

DeviceNet remote I/O,
2,048 points; Both Master and Slave functions,
Automatic allocation
possible without Configurator

CJ1W-DRM21

25 words*6

0 to F

16 Units*3

0.29

---

118 g max.*7

EtherCAT-compatible Position
Control Units*8

2 servo axes

CJ1W-NC281

25 words

0 to F

16 Units*3

0.46

---

110 g max.

4 servo axes

CJ1W-NC481

8 servo axes

CJ1W-NC881

16 servo axes

CJ1W-NCF81

4 servo axes and 64 I/O
slaves

CJ1W-NC482

8 servo axes and 64 I/O
slaves

CJ1W-NC882

Position Control
Units supporting MECHATROLINK-II
communications

MECHATROLINK-II,
16 axes max.

CJ1W-NCF71
(-MA)

25 words

0 to F

16 Units*3

0.36

---

95 g max.

Motion Control
Units supporting MECHATROLINK-II
communications

MECHATROLINK-II,
Real axes: 30 max.,
Virtual axes: 2 max.,
Special motion control
language

CJ1W-MCH71

25 words

0 to F

3
Units/Rack

0.60

---

210 g max.

SYSMAC SPU
Unit (Highspeed Storage
and Processing
Unit)

One CF card type I/II
slot (used with OMRON
HMC-EF@@@ Memory
Card), one Ethernet
port

CJ1W-SPU01V2*10

0.56

---

180 g max.

CJ2 CPU Unit Hardware User’s Manual

Not used.

0 to F

16 Units*3

2-21

2-1-4 Configuration Units

0.28*4

16 Units*3

2-1 Basic System Configuration

z CJ-series CPU Bus Units

2 Basic System Configuration and Devices

*1 Some CJ-series CPU Bus Units are allocated words in the CPU Bus Unit Setup Area. The system must be designed so
that the number of words allocated in the CPU Bus Unit Setup Area does not exceed its capacity. Refer to 4-6-2 CPU Bus
Unit Setup Area in CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
There may also be limits due to the capacity of the Power Supply Unit that you are using or the maximum number of Units
to which memory can be allocated in the CPU But Unit Setup Area.
*2 If interrupts to the CPU Unit are used, mount the Interrupt Input Unit in one of the following slots on the CPU Rack.
• CJ2H-CPU6@-EIP: Slots 0 to 3
• CJ2H-CPU6@ or CJ2M-CPU@@: Slots 0 to 4
*3 Up to 15 Units can be connected for a CJ2H-CPU6@-EIP or CJ2M-CPU3@ CPU Unit.
*4 Increases by 0.15 A/Unit when an NT-AL001 RS-232C/RS-422A Link Adapter is used. Increases by 0.04 A/Unit when a
CJ1W-CIF11 RS-422A Converter is used. Increases by 0.20 A/Unit when an NV3W-M@20L Programmable Terminal is
used.
*5 Up to seven Units can be connected for a CJ2H-CPU6@-EIP CPU Unit, up to eight Units can be connected for a CJ2HCPU6@ CPU Unit, and up to two Units can be connected for a CJ2M CPU Unit.
*6 Slave I/O are allocated in DeviceNet Area (CIO 3200 to CIO 3799).
*7 Includes the weight of accessory connectors.
*8 Only OMNUC G5-series Servo Drives with Built-in EtherCAT can be connected.
*9 When mounting to a CJ-series CPU Rack or a CJ-series Expansion Rack, one of these Units uses the space of three
Units.
*10 Use version 2 or higher of the SYSMAC SPU Unit with a CJ2 CPU Unit.

2-1-5

Calculating Unit Current Consumption
The amount of current/power that can be supplied to the Units mounted in a Rack is limited by the
capacity of the Rack’s Power Supply Unit. Refer to the following tables when designing your system so
that the total current consumption of the mounted Units does not exceed the maximum current for each
voltage group and the total power consumption does not exceed the maximum for the Power Supply
Unit.
For details on calculating the current consumption of Units, refer to 2-1-2 CPU Rack, 2-1-3 Expansion
Racks, and 2-1-4 Configuration Units.

Maximum Current and Power Supplied by Power Supply Units
The following table shows the maximum currents and power that can be supplied by Power Supply
Units in CPU Racks and Expansion Racks.
Note 1 When calculating current/power consumption in a CPU Rack, be sure to include the power required by the
CPU Unit itself, as well as the I/O Control Unit if one or more Expansion Racks is connected.
2 Be sure to include the power required by the I/O Interface Unit when calculating current/power consumption in an Expansion Rack.
Max. current consumption
Power Supply Unit

2-22

5-V group
(internal logic)

24-V group
(relays)

24-V group
(service)

Max. total power
consumption

CJ1W-PA205R

5.0 A

0.8 A

None

25 W

CJ1W-PA205C

5.0 A

0.8 A

None

25 W

CJ1W-PA202

2.8 A

0.4 A

None

14 W

CJ1W-PD025

5.0 A

0.8 A

None

25 W

CJ1W-PD022

2.0 A

0.4 A

None

19.6 W

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Example 1: In this example, the following Units are mounted to a CPU Rack with a CJ1W-PA205R
Power Supply Unit.
Unit

Model

Voltage group

Quantity

5-V

24-V

CPU Unit

CJ2H-CPU68-EIP 1

0.820 A

---

I/O Control Unit

CJ1W-IC101

0.020 A

---

Input Units

CJ1W-ID211

0.080 A

---

CJ1W-ID231

0.090 A

---

Output Unit

CJ1W-OC201

0.090 A

0.048 A

Special I/O Unit

CJ1W-DA041

0.120 A

---

CPU Bus Unit

CJ1W-CLK23

0.350 A

---

0.820 A + 0.020 A +
0.080 A × 2 + 0.090 A × 2 +
0.090 A × 2 + 0.120 A +
0.350 A

0.048 A × 2

Result

1.83 A (≤5.0 A)

0.096 A (≤0.8 A)

Calculation

2.51 A × 5 V = 9.15 W

0.096 A × 24 V = 2.304 W

Result

9.15 W + 2.30 W = 11.45 W (≤25 W)

Power consumption

Example 2: In this example, the following Units are mounted to a CJ-series Expansion Rack with a
CJ1W-PA205R Power Supply Unit.
Unit

Model

Voltage group

Quantity

5-V

24-V

I/O Interface Unit

CJ1W-II101

0.130 A

---

Input Unit

CJ1W-ID211

0.080 A

---

Output Unit

CJ1W-OD231

0.140 A

---

0.130 A + 0.080 A × 2 +
0.140 A × 8

---

1.41 A (≤5.0 A)

---

Calculation

1.41 A × 5 V = 7.05 W

---

Result

7.05 W (≤25 W)

Current consump- Calculation
tion
Result
Power consumption

CJ2 CPU Unit Hardware User’s Manual

2-23

2-1-5 Calculating Unit Current Consumption

Current consump- Calculation
tion

2-1 Basic System Configuration

Example Calculations

2 Basic System Configuration and Devices

Additional Information
Rack Current Consumption and Width Display
To display the current consumption and width of Units connected in the CPU Rack or Expansion
Rack, select Current Consumption and Width from the Options Menu in the CJ2 CPU Unit I/O
Table Window.
Power Supply
Unit model

Current
Current
consumption consumption Total power Width
consumption
at 5 V
at 26/24 V

Indicates
long-distance
expansion

If the capacity of a Power Supply Unit is exceeded, it will be displayed in red.

2-24

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Calculating Power Consumption
The ambient operating temperature at the control panel for mounting a CJ-series PLC must be no
higher than 55°C. This section describes how to calculate the power consumption of a CPU Rack for
use in the thermal design of the control panel.

Calculating Power Consumption
Use the following equation to calculate the average power consumption (W) of a CJ-series CPU Rack.

W = W_PLC + W_IO_ONOFF

2-1 Basic System Configuration

2-1-6

Basic I/O Unit power consumption
Basic PLC power consumption

The basic PLC power consumption is calculated based on the overall power consumption of the
PLC and the power conversion rate of the Power Supply Unit.
W_PLC = W_unit ÷ η
• W_unit:
Total power consumption of Units mounted to the CPU Rack. For details on the current consumption and voltage of individual Units, refer to 2-1-4 Configuration Units.
• η:
Power Supply Unit power conversion rate.
The rate is 70% for the CJ Series, so use “0.7” in the calculation.

z Basic I/O Unit Power Consumption (W_IO_ONOFF)
The Basic I/O Unit power consumption is the total consumption for the Input Units and the Output
Units.
• Input Units
Rated input voltage × Input current × Number of input points
• Output Units
Residual voltage × Maximum load current × Number of output points
Note For the CJ Series, calculate the residual voltage at 0.1 V.

CJ2 CPU Unit Hardware User’s Manual

2-25

2-1-6 Calculating Power Consumption

z Basic PLC Power Consumption (W_PLC)

2 Basic System Configuration and Devices

Calculation Examples
These examples show how to calculate the power consumption (W) for the following system.
CPU Rack

Power Supply
Unit
CJ2H-CPU68-EIP
CPU Unit

Units

Model

CJ1W-MAD42 × 2
Special I/O Units
CJ1W-ID261 × 2
CJ1W-OD261 × 2
Basic I/O Units

Quantity

5 VDC

Other

CPU Unit

CJ2H-CPU68-EIP

1 Unit

0.82 A

---

Input Units

CJ1W-ID261

2 Units

0.09 A

Rated input voltage: 24 V
Input current: 4.1 mA
Number of input points: 64

Output Unit

CJ1W-OD261

2 Units

0.17 A

Residual voltage: 0.1 V
Maximum load current: 0.3 A
Number of output points: 64

Special I/O
Units

CJ1W-MAD42

2 Units

0.58 A

---

z Basic PLC Power Consumption (W_PLC)
W_PLC = (0.82 + 0.09 × 2 + 0.17 × 2 + 0.58 × 2) A × 5 V ÷ 0.7= 17.86 W

z Basic I/O Unit Power Consumption (W_IO_ONOFF)
W_IO_ONOFF = 24 V × 0.0041 A x 128 points + 0.1 × 0.3 A × 128 points = 16.43 W

z Average Power Consumption (W)
W = W_PLC + W_IO_ONOFF = 34.29 W

2-26

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

Expanded System Configuration
This section describes the system configurations that can be connected by using the serial port that is
built into the CJ2 CPU Unit, along with Communications Units and other Configuration Units.

2-2-1

Serial Communications
This expanded system can be connected via the CJ2 CPU Unit's built-in serial communications port or
a Serial Communications Unit.
Various protocols, including Host Link and NT Link, can be used with the serial communications port. A
particular protocol can be supported by switching the mode of the serial communications port.

Note Protocol macros are supported only for Serial Communications Units.
15 Serial
Communications
Units max.

CPU Unit
SYSMAC
CJ2H
CPU64-EIP

RUN
ERR/ ALM

PROGRAMMABLE
CONTROLLER

INH
PRPHL
COMM
BKUP

MS
NS
COMM
100M
10M

SCU41
RUN

ERC

RDY

ERH

SD1

RD1

SD2

RD2

TERM
OFF

WIRE
2

TER1

UNIT
NO.

OPEN

MCPWR
BUSY

PORT1
(RS422
/485)

SCU41
RUN

ERC

RDY

ERH

SD1

RD1

SD2

RD2

TERM
OFF

WIRE
2

TER1

UNIT
NO.

PORT1
(RS422
/485)

SCU41
RUN

ERC

RDY

ERH

SD1

RD1

SD2

RD2

TERM
OFF

WIRE
2

TER1

Communications Port 1

UNIT
NO.

PORT1
(RS422
/485)

PERIPHERAL

Serial port (RS-232C)
PORT

PORT2

Communications Port 2

Precautions for Correct Use
A Serial Option Board is required to use a serial communications for the CJ2M-CPU3@.
Refer to Serial Option Boards on page 2-7 for information on Serial Option Boards.

CJ2 CPU Unit Hardware User’s Manual

2-27

2
2-2-1 Serial Communications

For details on the serial communications modes that are supported, refer to 11-2 Serial Communications in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).

2-2 Expanded System Configuration

2-2

2 Basic System Configuration and Devices

System Configuration Example
The host computer or a Programming Device, such as the CX-Programmer, is connected via the serial
port on the CPU Unit or, with the CJ2M-CPU3@, on the Serial Option Board. In addition, up to 15 Serial
Communications Units can be connected to a single CPU Unit, making it possible to configure a flexible
serial communications system by connecting devices with RS-232C or RS-422/485 ports (such as
PLCs from other manufacturers, temperature controllers, bar code readers, ID systems, personal computers, board computers, and components).
CX-Programmer
or host
computer
PT

NT Link
Serial
Communications Units
CPU Unit

RS-232C

CompoWay/F master

Modbus master

Peripheral Bus
(Toolbus)

Host Link slave

Serial PLC Link

CJ2M, CJ1M, CP1H,
CP1L, or CP1E CPU Unit

Host Link master

RS-232C

Protocol macro

*4
*4

Device supporting
CompoWay/F
Device supporting
Modbus
CPU Unit
Host Link slave

No protocol

: Protocol
*1 Serial port (RS-232C): A serial port is built into only the
CJ2H CPU Units and the CJ2M-CPU1@ CPU Units.
*2 Serial Option Board: A Serial Option Board can be
mounted only to a CJ2M-CPU3@ CPU Unit.

General-purpose external device (e.g., such as a
PLC from other manufacturer, temperature
controller, or bar code reader)

*3 Serial PLC Links are supported only by CJ2M CPU
Units.
*4 This is connected using the Serial Gateway. The Serial
Gateway is supported for Serial Communications Units
with unit version 1.2 or later.

For details on the protocol modes that can be selected for each port, refer to 11-2-1 Overview of Serial
Communications in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
Additional Information
Use the Peripheral Bus to connect the CJ2 CPU Unit to the CX-Programmer via serial communications.

2-28

CJ2 CPU Unit Hardware User’s Manual

2 Basic System Configuration and Devices

2-2-2

Communications Networks

Communications Network Systems

EtherNet/IP, Ethernet

EtherNet/IP Unit
Ethernet Unit
*1: The EtherNet/IP port built into the CJ2H-CPU6@-EIP
provides the same performance and functions as a
CJ1W-EIP21 EtherNet/IP Unit. The EtherNet/IP port built
into the CJ2M-CPU3@ provides very different performance.
Controller Link Units
Built-in EtherNet/IP port*1

2
2-2-2 Communications Networks

Connect via the built-in
EtherNet/IP port or a
EtherNet/IP Unit or Ethernet
Unit connected to the CPU Unit.

Information network

The CJ Series supports the following communications networks. Select the appropriate network
according to the applications. For details on communications networks, refer to 11-3 Communications
Networks in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).

Configurator

Connect by connecting a
Controller Link Unit to the
CPU Unit. It is also possible
to communicate with a
personal computer in which
a Controller Link Support
Board is installed.

DeviceNet

Control network

Controller Link
Support Board

Controller Link

CompoNet
Connect by connecting a
DeviceNet Unit to the CPU Unit.
It is also possible to connect to
various types of slaves.

CJ2 CPU Unit Hardware User’s Manual

2-2 Expanded System Configuration

‘

Slaves
Connect by connecting a
CompoNet Unit. It is also
possible to connect to various
types of slaves.

2-29

2 Basic System Configuration and Devices

Communications Network Overview
System

Network
EtherNet/IP

Function

Communications

Communications Device

Between Host computer and
PLC.

FINS message communications

Built-in EtherNet/IP port on
CJ2H-CPU6@-EIP or CJ2MCPU3@, or EtherNet/IP Unit

Between PLCs.
Between Host computer and
Memory Card installed in
CPU Unit.

FTP server

Between PLC and personal
computer directly connected
to the Network.

FINS message communications

RS-232C → Controller Link

Between Host Link computer
and PLC on the Network.

Host Link commands and gateway.

RS-232C cables and Controller Link Unit

EtherNet/IP

Between PLCs.

Tag data links

Built-in EtherNet/IP port on
CJ2H-CPU6@-EIP, CJ2MCPU3@ or EtherNet/IP Unit

Controller Link

Between PLCs.

FINS message communications

Controller Link Unit

Information
networks
Controller Link

Data link (offset, simple settings)

Controller Link Support
Board or Controller Link Unit

Data link (offset, simple settings)
Control
networks

DeviceNet
DeviceNet

CompoNet

2-30

Between PLC and Network
devices (Slaves).

FINS message communications
in an open network.

DeviceNet Master Unit and
Configurator

Large-capacity remote I/O (fixed
or free allocation) in an open network

DeviceNet Master Unit and
Configurator

High-speed, multi-point, multinode remote I/O in an open network

CompoNet Master Unit

CJ2 CPU Unit Hardware User’s Manual

Nomenclature and Functions
3
This section gives the parts of a CJ2 PLC and describes the functions of the parts.

3-1 CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-1-1
3-1-2

CPU Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) . . . 3-8

3-2 Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3-2-1
3-2-2
3-2-3

Models and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Installing and Removing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3-3 Pulse I/O Modules (CJ2M CPU Unit Only) . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3-3-1
3-3-2

Models and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

3-4 Serial Option Boards (CJ2M-CPU3@ Only) . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3-4-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

3-5 Power Supply Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
3-5-1
3-5-2
3-5-3

Models and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Selecting a Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

3-6 CJ-series Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
3-6-1
3-6-2

Basic I/O Units with Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Thirty-two/Sixty-four-point Basic I/O Units with Connectors . . . . . . . . . . . . . 3-30

3-7 I/O Control Units and I/O Interface Units . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
3-7-1
3-7-2

CJ2 CPU Unit Hardware User’s Manual

Component Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

3-1

3 Nomenclature and Functions

3-1

CPU Units

3-1-1

CPU Section

Components and Functions
CJ2H-CPU6@-EIP

CJ2H-CPU6@
Inside the battery compartment

8
1

SYSMAC
CJ2H
CPU64-EIP

RUN
ERR/ALM

PROGRAMMABLE
CONTROLLER

COMM
BKUP

COMM
100M

RUN
ERR/ALM
INH
PRPHL

PROGRAMMABLE
CONTROLLER

COMM
BKUP

10M

OPEN

SYSMAC
CJ2H
CPU64-EIP

INH
PRPHL

OPEN

MCPWR
BUSY

PERIPHERAL

MCPWR
BUSY

PERIPHERAL

4
PORT

PORT

5
11
11
6

CJ2M-CPU3@

CJ2M-CPU1@
Inside the battery compartment
7

8
1

3
4

11
6

CP1W-CIF01
RS-232C
Option Board

3-2

CP1W-CIF11 or
CP1W-CIF12
RS-422A/485
Option Board

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

3-3

3
3-1-1 CPU Section

CJ2 CPU Unit Hardware User’s Manual

8. LED Indicators (Refer to the next page.)
These indicators show the status of the CPU Unit:
• Normal operation
• Errors
• Output OFF status
• Communications status for the peripheral (USB) and RS232C ports
• Backup status between RAM and built-in flash memory
9. DIP Switch (Refer to a following page.)
Sets operations, such as user memory protection, automatic program transfer by Memory Card, serial port communications mode, and simple backup.
10. RS-232C Serial Port (Refer to A-4 Connecting to a Serial
Port on the CPU Unit.)
Connected to Programming Devices, Host Computers,
general-purpose external devices, Programmable Terminals, and other devices.
11. Connector
Connected to the next Unit.
12. Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP only)
Refer to 3-1-2 Built-in EtherNet/IP Section (CJ2HCPU6@-EIP only) for information on the built-in EtherNet/IP Section.
13. Serial Option Boards (CJ2M-CPU3@ Only)
An Option Board can be connected to the slot.
• CP1W-CIF01 RS-232C Option Board
• RS-422A/485 Option Board
(CP1W-CIF11 (Maximum transmission distance: 50 m)
or CP1W-CIF12 (Maximum transmission distance:
500 m))

3-1 CPU Units

1. Memory Card Indicators (Refer to 3-2 Memory Card.)
Indicates the Memory Card status (access and power
supply).
2. Simple Backup/Memory Card Power Supply Switch
(Refer to 3-2 Memory Card.)
Used to back up Memory Card data or turn OFF the
power when removing the Memory Card.
3. Peripheral (USB) Port
Connected to Programming Devices, such as the CXProgrammer
4. Memory Card Connector (Refer to 3-2 Memory Card.)
Connects the Memory Card to the CPU Unit.
5. Memory Card (Refer to 3-2 Memory Card.)
All CPU Unit data can be copied to a Memory Card to
back up the data. If a Memory Card Adapter is used, the
Memory Card can be mounted in the PCMIA slot in a
personal computer.
6. Memory Card Eject Button (Refer to 3-2 Memory Card.)
Press the eject button to remove the Memory Card from
the CPU Unit.
7. Slider
Secures the CPU Unit to the next Unit.

3 Nomenclature and Functions

CPU Unit Status Indicators

7-segment display and
indicators for
EtherNet/IP port
(Refer to 3-1-2
Built-in EtherNet/IP Section.)
(CJ2H-CPU6@-EIP and
CJ2M-CPU3@ only.)

Indicators on front
of CPU Unit

The CJ2 CPU Unit status can be checked with the indicators at the top of the front panel of the Unit.
The following table describes these indicators.
Indicator
RUN

ERR/ALM

Color
Green

Red

Status

Meaning

Lights when the PLC is operating normally in MONITOR or RUN
mode. The program is being executed.

Flashing

System download mode error or DIP switch settings error.

OFF

PLC has stopped operating while in PROGRAM mode, or has
stopped operating due to a fatal error, or is downloading data from
the system.

A fatal error (including FALS(007) instruction execution) or a hardware error (watchdog timer error) was found in self-diagnosis.
The CJ2 CPU Unit will stop operating, and the outputs from all
Output Units will turn OFF.

Flashing

A non-fatal error was found (including FAL(006) instruction execution) in the self-diagnosis.
The CJ2 CPU Unit will continue operating.

INH

Yellow

OFF

The CJ2 CPU Unit is operating normally.

Output OFF Bit (A500.15) has been turned ON.
The outputs from all Output Units will turn OFF.

PRPHL

COMM*1

Yellow

OFF

Output OFF Bit (A500.15) has been turned OFF.

Flashing

The CJ2 CPU Unit is communicating (sending or receiving) via the
peripheral (USB) port.

OFF

The CJ2 CPU Unit is not communicating via the peripheral (USB)
port.

Flashing

The CJ2 CPU Unit is communicating (sending or receiving) via the
serial port (RS-232C).

OFF

The CJ2 CPU Unit is not communicating via the serial port
(RS-232C).

BKUP

Yellow

User program and parameter area data is being backed up to
flash memory in the CPU Unit or being restored from flash memory after the power supply to the PLC was turned ON. *2

OFF

Data is not being written to flash memory.

*1 The CJ2M-CPU3@ does not have this indicator.
*2 Do not turn OFF the power supply to the PLC while this indicator is lit.

3-4

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

Memory Card Indicators
The status of a Memory Card mounted in the CJ2 CPU Unit can be checked with the indicators in the
middle of the front panel of the Unit. The following table describes these indicators.
Indicator
MCPWR

Color
Green

Status

Meaning

Lit

Power is being supplied to the Memory Card.

Flashing

Flashes once: Simple backup read, write, or verify normal
Flashes five times: Simple backup read malfunction

Not lit
BUSY

Yellow

Power is not being supplied to the Memory Card.

Flashing

Memory Card is being accessed.

Not lit

Memory Card is not being accessed.

3-1 CPU Units

Flashes continuously: Simple backup write or verify malfunction

OPEN

MCPWR

3-1-1 CPU Section

BUSY

PERIPHERAL

CJ2 CPU Unit Hardware User’s Manual

3-5

3 Nomenclature and Functions

DIP Switch

Pin no.
SW1

SW2

Usage
Used to prevent programs from being
accidentally overwritten from Programming Devices (including the CX-Programmer).
Set to ON to read the program
(AUTOEXEC.OBJ file) and parameter
area (AUTOEXEC.STD file) from the
Memory Card to the CPU Unit when
power is turned ON.*2

Setting

Not used.

Default

Writing disabled for user program memory.*1

OFF

Writing enabled for user program memory.

The user program is automatically transferred from the Memory Card when power is
turned ON.

OFF

The user program is not automatically transferred from the Memory Card when power is
turned ON.

---

OFF

Used to store the programs in the Memory Card to switch operations, or to automatically transfer programs at startup
(Memory Card ROM operation).*3
SW3

Function

OFF

SW4

Not used.

---

OFF

SW5

Set to ON to automatically detect the
baud rate of the CX-Programmer (peripheral bus only) when using the serial port
(RS-232C).*4, *5

Serial port (RS-232C) communications condition: Automatically detect CX-Programmer
(peripheral bus only) baud rate.

OFF

Serial port (RS-232C) communications condition: According to CX-Programmer communications settings in PLC Setup. (Refer to
Table 1.)

Set pin 6 to ON or OFF and use A395.12
in the program to create a user-defined
condition without using an Input Unit.

User-defined pin. Turns ON the User DIP
Switch Pin Flag (A395.12).

OFF

User-defined pin. Turns OFF the User DIP
Switch Pin Flag (A395.12).

SW7

Set the simple backup type. (Refer to
Table 2 below.)

---

Specifies the simple backup type.

OFF

SW8

---

Always
OFF.

---

OFF

SW6

OFF

*1 The following data cannot be overwritten when pin 1 is ON:
• All parts of the user program (programs in all tasks)
• All data in the parameter area (such as the PLC Setup and I/O table)
When pin 1 is ON, the user program and parameter area will not be cleared when the memory clear operation is performed from a Programming Device.
*2 I/O memory files (AUTOEXEC.IOM and ATEXEC@@.IOM) are automatically transferred when power is turned
ON if pin 2 is set to ON. Both the program (AUTOEXEC.OBJ) and parameter area (AUTOEXEC.STD) files
must be stored on the Memory Card. It is not necessary for the I/O memory files (AUTOEXEC.IOM and
ATEXEC@@.IOM) to be stored on the Memory Card.
*3 When pin 7 is ON, simple backup reading from the Memory Card is given priority, so even if pin 2 is ON, the
user program is not automatically transferred from the Memory Card when power is turned ON.
*4 Connecting to the PLC is not possible from the CX-One Support Software using SYSMAC WAY even if pin 5 on
the DIP switch is OFF and the PLC Setup is set to the Host Link protocol (i.e., the default setting).
*5 With the CJ2M-CPU3@, pin 5 can be set only when a Serial Option Board is mounted.

3-6

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

Table 1
Setting

Pin 5 of DIP switch on front
panel

Connection
1. Peripheral bus
(automatic detection)

PLC Setup (Serial port (RS-232C))*1

---

2. Peripheral bus

OFF (default)

Peripheral bus

3. Host Link*2

OFF (default)

Host Link (default)

OFF (default)

NT Link

5. No-protocol

OFF (default)

No-protocol

6. Serial Gateway

OFF (default)

Serial Gateway

3-1 CPU Units

4. NT Link

*1 Set using the CX-Programmer.
*2 Connection is not possible from CX-One Support Software using the SYSMAC WAY protocol.

Table 2
DIP Switch

Backing up all PLC data on the Memory Card:

SW7
ON

Memory Card

Required operation
Press the Memory Card
Power Supply Switch for
3 s.

All PLC data
Backup

Restoring all PLC data from the Memory Card:

Turn ON the power to
the PLC.*1

Memory Card
All PLC data
Restore

Comparing the Memory Card and the CPU Unit:

OFF

Press the Memory Card
Power Supply Switch for
3 s.

Memory Card
All PLC data
Compare

*1 This operation is given priority over automatic transfer at startup (pin 2 set to ON).
Note After reading data from the Memory Card to the CPU Unit using the simple backup operation, the CPU Unit
will remain in PROGRAM mode and no operations in any other mode will be possible. To switch to RUN or
MONITOR mode, turn OFF the power, turn OFF pin 7, turn the power back ON, and use a Programming
Device to change the operating mode.

CJ2 CPU Unit Hardware User’s Manual

3-7

3-1-2 Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP only)

Simple backup type

3 Nomenclature and Functions

3-1-2

Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP and CJ2M-CPU3@
Only)
This section describes the components related to the EtherNet/IP port section that is built into the
CJ2H-CPU6@-EIP and CJ2M-CPU3@.
Additional Information
The built-in EtherNet/IP port on the CJ2H-CPU6@-EIP provides the same performance and
functions as a CJ1W-EIP21 EtherNet/IP Unit. (The performance of the built-in EtherNet/IP port
on the CJ2M-CPU3@ is very different.) Set the unit number and node address with the rotary
switches on the front panel of the CPU Unit, and set the communications parameters with the
Edit Parameters menu command for the Special I/O Unit. For details on the Edit Parameters,
refer to 8-2 Setting CPU Bus Units and Special I/O Units in the CJ2 CPU Unit Software User’s
Manual (Cat. No. W473). For details on specifications and settings for the built-in EtherNet/IP
port, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat. No. W465).

Nomenclature and Functions
CJ2H-CPU6@-EIP

CJ2M-CPU3@
Display and indicators
for built-in EtherNet/IP port

SYSMAC
CJ2H
CPU64-EIP

MS
NS
COMM
100M

PROGRAMMABLE
CONTROLLER

10M
OPEN

Rotary switches

MCPWR
BUSY

PERIPH ERAL

PORT

Built-in EtherNet/IP port
(Refer to 5-3-6 Wiring with Ethernet Cable.)

Display and Indicators for Built-in EtherNet/IP Port
With a CJ2 CPU Unit, Ethernet node status and Ethernet network status can be monitored by checking
the display and indicators at the upper right of the front of the CPU Unit.

Seven-segment display and indicators
for built-in EtherNet/IP port

3-8

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

z Status Indicators: MS, NS, COMM, 100M, and 10M

The MS (Module Status) indicator indicates the status of the built-in EtherNet/IP port itself and the
NS (Network Status) indicator indicates the status of the network.
The COMM, 100M, and 10M indicators indicate the status of Ethernet communications.

Refer to SECTION 6 Troubleshooting for details on using these indicators for troubleshooting.
Indicator
MS

Name
Module Status

Color
Red

Status
Lit

3-1 CPU Units

The MS and NS indicators can be green or red. The COMM, 100M, and 10M indicators are yellow.
These indicators can be lit, flashing, or not lit. The following table shows the meaning of these indicator conditions.

Meaning

Fatal error

Flashing Recoverable error

Network Status

Lit

Normal

---

Not lit

Power supply OFF

Red

Lit

Fatal error

Flashing Recoverable error
Green

Lit

Tag data link and message connections established

Flashing Tag data link and message connections not established
COMM

Communication

---

Not lit

Offline or power supply OFF

Yellow

Lit

Transferring data

Not lit

Not transferring data

Lit

100Base-TX link established

Not lit

100Base-TX link not established

Lit

10Base-TX link established

Not lit

10Base-TX link not established

100M

100 Mbps

Yellow

10M

10 Mbps

Yellow

z Seven-segment Display

When the power supply to the PLC is turned ON or the CPU Unit is reset, all of the segments will
flash twice, and then the IP address set for the built-in EtherNet/IP port will be displayed on the 7segment display from right to left. After the entire IP address is displayed, the lower 8 bits of the IP
address (node address) will be displayed in hexadecimal.

CJ2 CPU Unit Hardware User’s Manual

3-9

3-1-2 Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP only)

Green

3 Nomenclature and Functions

For example, the display will change as follows if the IP address is 192.168.250.10:
The IP address is displayed in decimal, flowing from right to left.

Example:
: 192.

: 168.

: 250.

: 10

If the Unit is operating normally, the rightmost digits
of the Unit's IP address is displayed in hexadecimal.
Flashing: The tag data links are stopped.
Lit: The tag data links are operating.

: 0A
( “0A” is the hexadecimal display
for the final row, 10, in the IP
address of the local Unit.)

If an error occurs, the error code will be displayed alternately with the rightmost byte of the affected
device’s IP address. For details on error codes, refer to 6-2-2 Checking Error Status at the EtherNet/IP Port Seven-segment Display.
The following examples show the displays for errors.
• A d6 error (failure to connect) has occurred in communications with IP address 192.168.250.8.
• A d6 error (failure to connect) has occurred in communications with IP address 192.168.250.9.
• A d5 error (verification error; target missing) has occurred in communications with IP address
192.168.250.40.
• A C6 error (multiple switches ON) and an EA error (EtherNet/IP expansion setting error) have
occurred at the built-in EtherNet/IP port (192.168.250.10).
Information on errors that occur in
communications with the target node,
along with the last digits of the Unit’ s IP
address, are displayed in hexadecimal.

Example:
: Er d6 IP 08

: IP d6 IP 09

: Er d5 IP 40

: Er c6

: Er EA
Displays errors that occurred
within the Unit.

: IP 0A
The last digits of the
Unit’ s IP address is
displayed in hexadecimal.

3-10

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

• There is no priority to the order in which the errors are displayed. All of the errors are displayed
repeatedly in sequence.
Left/Right Dot LEDs
If an error occurs at multiple devices for which the rightmost 8 bits in the IP addresses are the same,
this is indicated by the dots on the right side in display on the target devices.
The following examples show the displays for multiple errors.
• d6 errors (failure to connect) have occurred in communications with IP address 10.0.1.8.
• d6 errors (failure to connect) have occurred in communications with IP address 10.0.2.8.
3-1 CPU Units

The unit number and node address for the CJ2 CPU Unit built-in EtherNet/IP port are set using the
rotary switches. The unit number and node address are allocated in the same way as for a CPU Bus
Unit. According to the unit number that is set, words are automatically allocated in the CIO Area and
DM Area. For details, refer to the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).

z Setting the Unit Number
Set a unique unit number for the CJ2 CPU Unit built-in EtherNet/IP port. The same unit number cannot be used by any other CPU Bus Unit connected to the CJ2 CPU Unit.
Use a small screwdriver to make the setting, and be sure not to damage the rotary switch. The unit
number is factory-set to 0.

Setting range
0 to F

Precautions for Correct Use
• Always turn OFF the PLC’s power supply before setting the unit number.
• When setting the unit number for the first time or when changing the setting, create the PLC’s
I/O tables.

CJ2 CPU Unit Hardware User’s Manual

3-11

3-1-2 Built-in EtherNet/IP Section (CJ2H-CPU6@-EIP only)

Rotary Switches

3 Nomenclature and Functions

z Node Address Setting Switches
Set a FINS address for the built-in EtherNet/IP port. With the FINS communications service, multiple
EtherNet/IP Units (including the CJ2 Unit built-in EtherNet/IP port) connected by Ethernet are identified by their node addresses. Using the node address switches, set a unique node address in hexadecimal. The same node address cannot be used by any other EtherNet/IP Unit or Ethernet Unit
connected on the same Ethernet network.
As long as it does not duplicate any other address, the node address can be set from 01 to FE (1 to
254 in decimal).
Setting range
01 to FE hex (1 to 254 decimal)

Note The node address is factory-set to 01. With the default setting, the values set on these switches become the
last two digits of the built-in EtherNet/IP port’s IP address.

The default IP address is 192.168.250.node_address. With the factory-set node address of 01, the
default IP address is 192.168.250.1.
The node address can be set to any number in the setting range (01 to FE), as long as the same
address is not set on another node in the network.
Precautions for Correct Use
• Always turn OFF the PLC’s power supply before setting the unit number.
• When setting the unit number for the first time or when changing the setting, create the PLC’s
I/O tables.

Additional Information
• If the node address setting is changed during operation, the MS Indicator will flash red.

z Relationship with IP Address
When using the automatic generation method (dynamic/static) for IP address conversion, the rightmost byte of the IP address that is set for the built-in EtherNet/IP port must be set to the same value
as the node address. If it cannot be set to the same value as the node address, then the address
conversion method must be set to the IP address table method or the IP address + automatic generation method. For details, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat. No.
W465).

3-12

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

3-2
3-2-1

Memory Card
Models and Specifications

Model number

HMC-EF583

HMC-EF283

HMC-EF183

Memory Card capacity

512 Mbytes

256 Mbytes

128 Mbytes

Common specifications

3-2-2

42.8 × 36.4 × 3.3 mm (W × H × T)

Weight

15 g max.

Current consumption

Approx. 30 mA (when used with PLC)

Environmental specifications

Same as general specifications of PLC

No. of writes

100,000 (guaranteed value)

No. of files writable to root
directory

511

File system

FAT16

3
3-2-1 Models and Specifications

Factory specifications

Dimensions

Operating Procedures
Memory Card Indicators
MCPWR (green): Lit when power is being provided
to the Memory Card.
BUSY (orange): Flashes while the Memory Card is being
accessed.

Simple Backup/Memory Card Power Supply Switch
This switch has the following two functions.
• Simple Backup
To back up all CPU Unit data to the Memory Card,
press this switch for 3 s when DIP switch pin 7 is set to ON.

PERIPHERAL

• Turning OFF Power to the Memory Card
Press this switch to turn OFF the power before removing the
Memory Card.

Memory Card Eject Button

Additional Information
Simple Backup
The simple backup function copies all CPU Unit data (user program, parameters, and I/O memory) to a Memory Card, without having to use a Programming Device.
For details, refer to 8-3 Simple Backup.

CJ2 CPU Unit Hardware User’s Manual

3-2 Memory Card

Use the following OMRON-specified Memory Card. Operation may not be correct if memory cards from
other companies are used.

3-13

3 Nomenclature and Functions

3-2-3

Installing and Removing

Before Using a Memory Card
• Observe the following precautions while the Memory Card is being accessed. The Memory Card may
become unusable if these precautions are not followed.
• Never turn OFF the PLC while the CPU is accessing the Memory Card.
• Never remove the Memory Card while the CPU is accessing the Memory Card. Press the Memory
Card power supply switch and wait for the BUSY indicator to go OFF before removing the Memory
Card.
• Never insert the Memory Card facing the wrong way. If the Memory Card is inserted forcibly, it may
become unusable.
• To delete all the data on the Memory Card by formatting the Memory Card, insert the Memory Card in
the CPU Unit and perform the operation from the CX-Programmer.

Installing the Memory Card

Pull the top end of the Memory Card cover forward and remove from the Unit.

Insert the Memory Card with the label facing to the left. (Insert with the ∆ on the Memory Card
label and the ∆ on the CPU Unit facing each other.)

Product label

Push the Memory Card securely into the compartment.
If the Memory Card is inserted correctly, the Memory Card eject button will be pushed out.

3-14

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

Removing the Memory Card

Press the Memory Card power supply switch.
Memory Card
power supply switch

3-2 Memory Card

3
Press the Memory Card eject button after the BUSY indicator is no longer lit.

3-2-3 Installing and Removing

The Memory Card will be ejected from the compartment.
BUSY indicator

Memory Card eject button

Pull out the Memory Card.

Install the Memory Card cover when a Memory Card is not being used.

CJ2 CPU Unit Hardware User’s Manual

3-15

3 Nomenclature and Functions

Installing the Memory Card into a Personal Computer
HMC-AP001
Memory Card Adapter

Memory Card
Personal computer
PC card slot

3-16

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

Pulse I/O Modules (CJ2M CPU Unit
Only)

3-3-1

3-3 Pulse I/O Modules (CJ2M CPU Unit Only)

3-3

Models and Specifications
Type of transistor outputs

Model

Specifications

CJ2M-MD211

Sinking outputs

1 MIL connector

CJ2M-MD212

Sourcing outputs

• 10 inputs (four interrupt/quick-response inputs or two high-speed
counter inputs)
• 6 outputs (two pulse outputs or two PWM outputs)

Name

Model

MIL Flat Cable Connector for Pulse
I/O Modules

XG4M-4030-T

Specifications
40-pin MIL connector, pressurewelded type (This connector is used
by user to make a cable.)

(Refer to the 2-1-2 CPU Rack, 5-3 Wiring, or the CJ2M CPU Unit Pulse I/O Module User's Manual (Cat.
No. W486) for details.)

3-3-2

Part Names and Functions

Part Names

I/O indicators
Indicate the ON/OFF status of the
pulse I/O signals.

Pulse I/O
MIL connector (40 pins)

CJ2 CPU Unit Hardware User’s Manual

3-17

3-3-1 Models and Specifications

Note Connectors are not provided with Pulse I/O Modules.
Purchase the following Connector, an OMRON Cable with Connectors for Connector-Terminal Block Conversion Units, or an OMRON Cable with Connectors for Servo Relay Units.

3 Nomenclature and Functions

Connecting Pulse I/O Modules to the CPU Unit
Up to two Pulse I/O Modules can be connected to a CJ2M CPU Unit.
They must be connected immediately to the left of the CPU Unit.
The Pulse I/O Module closest to the CPU Unit is Pulse I/O Module 0 and the other one is Pulse I/O
Module 1.
One Pulse I/O Module

Pulse I/O Module

CJ2M CPU Unit
(Standard or
Simple Model)

Connected

Pulse I/O Module 0

Two Pulse I/O Modules
Pulse I/O Modules

Connected

CJ2M CPU Unit
(Standard or
Simple Model)

Connected

Pulse I/O Module 0
Pulse I/O Module 1

Pulse I/O Module Detection
The CPU Unit will automatically detect the Pulse I/O Modules that are connected when the power supply is turned ON. The Pulse I/O Modules are therefore not registered in the I/O tables.
An error will not occur when power is turned ON even if there is a different number of Pulse I/O Modules
connected or different models of Pulse I/O Modules connected.

3-18

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

3-3 Pulse I/O Modules (CJ2M CPU Unit Only)

Pulse I/O Module Status Indicators
Pulse I/O Module number indicators
Indicate the I/O status.

Up to two Pulse I/O Modules can be connected.
The indicators on the front panel of a Pulse I/O Module indicate whether the Block is number 0 or
number 1 and indicate the I/O status.
The following table describes these indicators.

Indicator
No. 0

Color
Green

No. 1

Green

IN0 to IN9

OUT0 to
OUT5

Yellow

Status

Meaning

❍

This is the Pulse I/O Module that is connected directly to the CPU Unit.
It is Pulse I/O Module number 0.

●

Not connected.

❍

This is the Pulse I/O Module that is connected next to the Power Supply
Unit when two Pulse I/O Modules are connected.
It is Pulse I/O Module number 1.

●

Not connected.

❍

The allocated input is ON.

●

The allocated input is OFF.

❍

The allocated output is ON.

●

The allocated output is OFF.

Precautions for Correct Use
A maximum of two Pulse I/O Modules can be connected. Do not connect more than this. If three
or more Pulse I/O Modules are connected, a too many I/O points error (fatal error) will occur. If
this error occurs, turn OFF the power supply to the PLC and remove all but two Pulse I/O Modules.

CJ2 CPU Unit Hardware User’s Manual

3-19

3-3-2 Part Names and Functions

❍: Lit, ● :Not lit

3 Nomenclature and Functions

3-4

3-4-1

Serial Option Boards (CJ2M-CPU3@
Only)
Overview
A Serial Option Board can be used with a CJ2M-CPU3@ CPU Unit.

Serial Option Boards

CP1W-CIF01
RS-232C
Option Board

CP1W-CIF11 or CP1W-CIF12
RS-422A/485 Option Board

z Serial Option Boards
Model

Port

Maximum transmission
distance

Connection method

CP1W-CIF01

One RS-232C port

15 m

Connector: D-sub, 9-pin female

CP1W-CIF11

One RS-422A/485 port
(not isolated)

50 m

Terminal block: Using ferrules

CP1W-CIF12

One RS-422A/485 port
(isolated)

500 m

Terminal block: Using ferrules

z Mounting an Option Board
When mounting an Option Board, first remove the slot cover. Grasp the lock levers at the top and
bottom of the cover at the same time to unlock the cover, and then pull the cover out. Then to mount
the Option Board, check the alignment and firmly press it in until it snaps into place.
Precautions for Correct Use
Always turn OFF the power supply to the PLC before mounting or removing an Option Board.

3-20

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

3-5

Power Supply Units

3-5-1

Models and Specifications
Specifications

Power Supply Unit

CJ1W-PA205R

CJ1W-PA205C

Supply voltage

100 to 240 VAC (wide-range), 50/60 Hz

24 VDC

Operating voltage
and frequency
ranges

85 to 264 VAC, 47 to 63 Hz

19.2 to 28.8 VDC

21.6 to 26.4 VDC

Power consumption

100 VA max.

50 VA max.

50 W max.

35 W max.

Inrush current*1

At 100 to 120 VAC:

At 100 to
120 VAC:

At 24 VDC:

15 A/8 ms max. for cold start at room
temperature
30 A/8 ms max. for cold start at room
temperature

20 A/8 ms max.
for cold start at
room temperature

CJ1W-PD025

CJ1W-PD022

30 A/20 ms max. for cold start at room
temperature

At 200 to
240 VAC:
40 A/8 ms max.
for cold start at
room temperature

Output capacity*7

5.0 A, 5 VDC (including supply to CPU
Unit)

2.8 A, 5 VDC
(including supply
to CPU Unit)

5.0 A, 5 VDC
(including supply
to CPU Unit)

2.0 A, 5 VDC
(including supply
to CPU Unit)

0.8 A, 24 VDC

0.4 A, 24 VDC

0.8 A, 24 VDC

0.4 A, 24 VDC

Total: 25 W max.

Total: 14 W max.

Total: 25 W max.

Total: 19.6 W
max.

Not provided.

With Alarm
output (open collector output)

Not provided.

Output terminal (service supply)

Not provided

RUN output*2

Contact configuration: SPST-NO
Switch capacity:
250 VAC, 2 A
(resistive load)
120 VAC, 0.5 A
(inductive load),
24 VDC, 2A
(resistive load)
24 VDC, 2 A
(inductive load)

Replacement notification function

Not provided.

30 VDC max.,
50 mA max.

CJ2 CPU Unit Hardware User’s Manual

3-21

3
3-5-1 Models and Specifications

At 200 to 240 VAC:

CJ1W-PA202

3-5 Power Supply Units

Item

3 Nomenclature and Functions

Item

Specifications

Insulation resistance

20 MΩ min.
(at 500 VDC)
between AC
external and GR
terminals*3

• 20 MΩ min.
(at 500 VDC)
between all
external terminals and GR
terminal*3, and
between all
alarm output
terminals.
• 20 MΩ min.
(at 250 VDC)
between all
alarm output
terminals and
GR terminal*3.

20 MΩ min.
(at 500 VDC)
between AC
external and GR
terminals*3

20 MΩ min.
(at 500 VDC)
between DC
external and GR
terminals*3

---*6

Dielectric strength*4

2,300 VAC
50/60 Hz for 1 min
between AC
external and GR
terminals*3

• 2,300 VAC,
50/60 Hz for
1 min between
all external terminals and GR
terminal*3 and
between all
alarm output
terminals with a
leakage current
of 10 mA max.
• 1,000 VAC,
50/60 Hz for
1 min between
all alarm output
terminals and
GR terminal*3
with a leakage
current of
10 mA max.

2,300 VAC
50/60 Hz for 1 min
between AC
external and GR
terminals*3

1,000 VAC
50/60 Hz for 1 min
between DC
external and GR
terminals*3

---*6

Leakage current:
10 mA max.

1,000 VAC 50/60 Hz for 1 min between DC external and GR terminals*3
Leakage current: 10 mA max.
Noise immunity

2 kV on power supply line (Conforms to IEC61000-4-4.)

Vibration resistance

5 to 8.4 Hz, 3.5-mm amplitude, 8.4 to 150 Hz, acceleration: 9.8 m/s2 in X, Y, and Z directions for
100 minutes (Time coefficient: 10 minutes × coefficient factor 10 = total time 100 min.) (according to
JIS C60068-2-6)

Shock resistance

147 m/s2 3 times each in X, Y, and Z directions (Relay Output Unit: 100 m/s2) (according to JIS
C60068-2-27)

Ambient operating
temperature

0 to 55°C

Ambient operating
humidity

10% to 90% (with
no condensation)

Atmosphere

Must be free from corrosive gases.

Ambient storage tem- −20 to 75°C
perature
(excluding battery)

3-22

10% to 90% (with
no condensation)*5
−20 to 75°C*5

10% to 90% (with no condensation)

−20 to 75°C (excluding battery)

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

*1 The AC and DC values above are given for a cold start, and the AC values are at room temperature. The AC inrush control circuit uses a thermistor element with a low-temperature current control characteristic. If the ambient temperature is
high or the PLC is hot-started, the thermistor will not be sufficiently cool, and the inrush current given in the table may be
exceeded by up to twice the given value. When selecting fuses or breakers for external circuits, allow sufficient margin in
shut-off performance. The DC inrush control circuit uses a capacitor-charging delay circuit. If the power is OFF for only a
short time for a hot-start, the capacitor will not sufficiently charge and the inrush current given in the table may be
exceeded by up to twice the given value.
*3 Disconnect the Power Supply Unit’s LG terminal from the GR terminal when testing insulation and dielectric strength.
Testing the insulation and dielectric strength with the LG terminal and the GR terminals connected will damage internal
circuits in the CPU Unit.
*4 Change the applied voltage gradually using the adjuster on the Tester. If the full dielectric strength voltage is applied or
turned OFF using the switch on the Tester, the generated impulse voltage may damage the Power Supply Unit.
*5 Maintain an ambient storage temperature of −25 to 30°C and relative humidity of 25% to 70% when storing the Unit for
longer than 3 months to keep the replacement notification function in optimum working condition.

3-5 Power Supply Units

*2 Supported only when mounted to CPU Rack.

*6 CJ1W-PD022 is not insulated between the primary DC power and secondary DC power.
*7 Internal components in the Power Supply Unit will deteriorate or be damaged if the Power Supply Unit is used for an
extended period of time exceeding the power supply output capacity or if the outputs are shorted.

3
3-5-1 Models and Specifications

CJ2 CPU Unit Hardware User’s Manual

3-23

3 Nomenclature and Functions

3-5-2

Components

z Example: CJ1W-PA205R
POWER Indicator
Lit when 5 V are being output from the Power Supply Unit.
PA205R
POWER

External connection terminals

AC100-240V
INPUT

AC input

L2/N

LG
GR
RUN
OUTPUT
AC240V
DC24V

RUN output

z Example: CJ1W-PA205C
Replacement notification display

CJ1W-PA205C
External connection
terminals

POWER

AC100-240V
INPUT

Years

POWER Indicator
Lit when 5 V are being output
from the Power Supply Unit.

AC input
TEST

L2/N

ALARM
OUTPUT
DC30V,50mA
NORMAL:ON
ALARM :OFF

TEST switch
The TEST switch can be used to
temporarily turn OFF the alarm output
that notifies when replacement is
needed.

Alarm output
(replacement notification output)

z Example: CJ1W-PA202
PA202
POWER

External connection
terminals
L1

AC input

POWER Indicator
Lit when 5 V are being output
from the Power Supply Unit.

AC100
-240V
INPUT
L2/N

LG
GR
NC

3-24

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

z Example: CJ1W-PD025
POWER Indicator
Lit when 5 V are being output from the Power Supply Unit.
PD025
POWER

3-5 Power Supply Units

External connection terminals
DC24V+
INPUT

DC input
LG
GR
NC

3
3-5-2 Components

z Example: CJ1W-PD022
PD022

External
connection
terminals
DC
input

POWER

POWER Indicator
Lit when 5 V are being output
from the Power Supply Unit.

DC24V
INPUT

GR
NC
NC

AC Input
Supply 100 to 240 VAC (allowable: 85 to 264 VAC).
Note The CJ1W-PA205R, CJ1W-PA205C, and CJ1W-PA202 have a wide input range, so they do not have voltage
switching terminals.

DC Input
Supply 24 VDC.
Model

Allowable power supply voltage fluctuation range

CJ1W-PD025

19.2 to 28.8 VDC (±20%)

CJ1W-PD022

21.6 to 26.4 VDC (±10%)

LG
Ground to a resistance of 100 Ω or less to increase noise resistance and avoid electric shock.

GR
Ground to a resistance of 100 Ω or less to avoid electric shock.

CJ2 CPU Unit Hardware User’s Manual

3-25

3 Nomenclature and Functions

RUN Output (CJ1W-PA205R Only)
The internal contact turns ON when the CJ2 CPU Unit is operating (RUN or MONITOR mode). The
Power Supply Unit must be in the CPU Rack to use this output.

Alarm Output (CJ1W-PA205C Only)
The alarm output is used to notify when Power Supply Unit replacement is required. The output is normally ON. The output turns OFF when the time until replacement is 6 months or less.

3-26

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

3-5-3

Selecting a Power Supply Unit
After determining what power supply voltage is required, whether power output terminals and a RUN
output are required, and whether replacement notification is required, calculate the current and power
requirements for each Rack.
3-5 Power Supply Units

Condition 1: Current Requirements
There are two voltage groups for internal power consumption: 5 VDC and 24 VDC.
For details on the current consumption of individual Units, refer to 2-1-4 Configuration Units.

z Current Consumption at 5 VDC
The following table shows the current that can be supplied to Units (including the CJ2 CPU Unit) that
use 5-VDC power.
Model

Maximum current at 5 VDC
5.0 A

CJ1W-PA202

2.8 A

CJ1W-PD025

5.0 A

CJ1W-PD022

2.0 A

z Current Consumption at 24 VDC
The following table shows the current that can be supplied to Units that use 24-VDC power supply.
Maximum current at 24 VDC

CJ1W-PA205R/205C

0.8 A

CJ1W-PA202

0.4 A

CJ1W-PD025

0.8 A

CJ1W-PD022

0.4 A

Condition 2: Power Requirements
The following table shows the maximum total power that can be supplied at 5 VDC and 24 VDC.
Model

Maximum total power output

CJ1W-PA205R/205C

25 W

CJ1W-PA202

14 W

CJ1W-PD025

25 W

CJ1W-PD022

19.6 W

For details on the current consumption of individual Units, refer to 2-1-2 CPU Rack, 2-1-3 Expansion
Racks, and 2-1-4 Configuration Units. Refer to 2-1-5 Calculating Unit Current Consumption for an
example of calculating the current consumption.

CJ2 CPU Unit Hardware User’s Manual

3-27

3-5-3 Selecting a Power Supply Unit

CJ1W-PA205R/205C

Model

3 Nomenclature and Functions

3-6

CJ-series Basic I/O Units

3-6-1

Basic I/O Units with Terminal Blocks

Part Names and Functions
z Eight/sixteen-point Units (18-point Terminal Blocks)
Model number label
I/O indicators

Connector
Connect to the connector on the next Unit.

Terminal block for
I/O wiring, 18P × 1

ERR
0

9 10 11 12 13 14 15

2 3

4 5

Note The CJ1W-OD202, CJ1W-OD204, and CJ1W-OD212 also have an ERR indicator for the load short-circuit
alarm.

Interrupt Input Units
z Functions
Interrupt Input Units are used to execute interrupt programs on the rising or falling edge of an input
signal. When the specified interrupt input turns ON (or OFF), execution of the cyclic program in the
CPU Unit is interrupted and an I/O interrupt task (task number 100 to 131) is executed. When execution of the I/O interrupt task has been completed, the cyclic program is again executed starting from
the instruction after which it was interrupted.
CPU Unit

Interrupt Input Unit

1 cyclic task
MSKS

Input
(rising or
falling
edge)

3-28

Immediate
interrupt

I/O interrupt task is
executed when the input
turns ON (or OFF).

I/O interrupt task

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

z Application Precautions
• Interrupt Input Units must be mounted in the locations described below.

Example: CJ2H-CPU6@-EIP
0

Power
Supply
Unit

CPU
Unit

3-6 CJ-series Basic I/O Units

When using a CJ2H-CPU6@-EIP CPU Unit, all Interrupt Input Units must be connected in any of the
four positions immediately to the right of the CPU Unit, i.e., slots 0 to 3 on the CPU Rack. When
using a CJ2H-CPU6@ CPU Unit or CJ2M-CPU@@ Unit, all Interrupt Input Units must be connected
in any of the five positions immediately to the right of the CPU Unit, i.e., slots 0 to 4 on the CPU
Rack. If an Interrupt Input Unit is connected in any other position on the CPU Rack or anywhere on
an Expansion Rack, and I/O setting error (fatal) will occur.

3
Cannot be used.

• The Interrupt Input Units must be connected in the slot ranges specified above even when the I/O
tables are edited using the CX-Programmer. If the Interrupt Input Units are not connected in the correct positions, an error will occur when the I/O tables are generated from the CX-Programmer.
A401.10 will turn ON to indicate an I/O setting error and A405.08 will turn ON to indicate that an Interrupt Input Unit is in the wrong position.
Note Even if a Unit is physically in one of the correct positions, a Dummy Unit can be registered in the I/O tables,
causing a Unit to be defined in a position different from its physical position.

• There are limits to the number of Interrupt Input Units that can be mounted. If these limits are
exceeded, a too many I/O points error (fatal error) will occur.
• The input response time cannot be changed for the CJ1W-INT01, and the related portions of the
Basic I/O Unit input time constants in the PLC Setup, and the setting status in A220 to A259 will not
be valid.

z Input Signal Width
Input signals must meet the following conditions.

Unit
CJ1W-INT01

OFF

ON time
0.05 ms min.

CJ2 CPU Unit Hardware User’s Manual

OFF time
0.5 ms min.

3-29

3-6-1 Basic I/O Units with Terminal Blocks

Connect here.

3 Nomenclature and Functions

3-6-2

Thirty-two/Sixty-four-point Basic I/O Units with Connectors
Units are available with either Fujitsu-compatible connectors (CJ1W-@D@@1) or MIL connectors
(CJ1W-@D@@2/3/4).

Part Names
z Thirty-two-point Units
(Models with 40-point Fujitsu Connector or MIL Connector)
Model number
Indicator Switch
ID 2 3 1

ID 2 3 2

I/O indicators

Changes the 16 I/O displayed on the I/O indicators.
I/O wiring
connector
(40-pin × 1)

Setting 1
Setting 2

Unit with Fujitsu-compatible
Connector

Word m
or
m+1

MIL connector
Fujitsu connector
Bottom of connector
Wd m (Row A on connector)
Wd m+1 (Row B on connector) Top of connector

Unit with MIL Connector
Connector
Connected to the connector on the next Unit.

ERR
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15

Note: Only the CJ1W-OD232 has an ERR indicator for the load short-circuit alarm.

z Thirty-two-point Units with 2 × 24-pin Fujitsu-compatible Connectors
or 2 × 20-pin MIL Connectors
Model number
MD232

MD231

I/O indicators

I/O wiring
connector
(24-pin x 2)
Unit with Fujitsu-compatible
Connector
Word m
Word m+1

3-30

0
8
0
8

1
9
1
9

2
10
2
10

3 4 5 6 7
11 12 13 14 15
3 4 5 6 7
11 12 13 14 15

Unit with MIL Connector
Connector
Connected to the connector on the next Unit.

CJ2 CPU Unit Hardware User’s Manual

3 Nomenclature and Functions

z Sixty-four-point Units
(Models with Two 40-point Fujitsu Connectors or MIL Connector)
Indicator Switch
1

3-6 CJ-series Basic I/O Units

Model number
2

Changes the 32 I/O displayed on the I/O indicators.
ID 2 6 1

I/O indicators

ID 2 6 1

Setting 1
Setting 2

Wd m and m+1: CN1
Wd m+2 and m+3: CN2

I/O wiring
connector
(40-pin × 2)

Unit with Fujitsu-compatible
Connector

Unit with MIL Connector

3
Connector
Connected to the connector on the next Unit.

Word m+1
or m+3

0
8
0
8

1
9
1
9

3-6-2 Thirty-two/Sixty-four-point Basic I/O Units with Connectors

Word m or
m+2

2 3 4 5 6 7
1 01 11 21 31 41 5
2 3 4 5 6 7
1 01 11 21 31 41 5

CJ2 CPU Unit Hardware User’s Manual

3-31

3 Nomenclature and Functions

3-7

I/O Control Units and I/O Interface
Units
An I/O Control Unit and I/O Interface Units are used to connect Expansion Racks to expand the system.

3-7-1

Component Names
CJ1W-IC101
I/O Control Unit

CJ1W-II101
I/O Interface Unit
II101

IC101

OU T

Output connector for
I/O Connecting Cable

OUT

Input connector for
I/O Connecting Cable

Precautions for Correct Use
Attached the enclosed cover to the I/O Connecting Cable connector on the I/O Interface Unit
when it is not being used to protect it from dust.

3-7-2

System Configuration
Power
Supply Unit

CPU Unit

CJ1W-IC101
I/O Control Unit

CPU Rack

Power
Supply Unit

I/O Connecting Cable

The I/O Control Unit is connected directly to the
CJ2 CPU Unit. If it is not immediately to the
right of the CPU Unit, correct operation may not
be possible.
The I/O Interface Unit is connected directly to
the Power Supply Unit. If it is not immediately to
the right of the Power Supply Unit, correct operation may not be possible.

CJ1W-II101
I/O Interface Unit

Expansion Rack
Power
Supply Unit

3-32

I/O Connecting Cable
CJ1W-II101
I/O Interface Unit

CJ2 CPU Unit Hardware User’s Manual

Support Software
This section describes the software that is used to program and debug a CJ2 PLC. It
also describes how to connect the Programming Device and the PLC.

4-1 Support Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-1

CX-One FA Integrated Tool Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-2 Connection Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4-2-1
4-2-2
4-2-3

CJ2 CPU Unit Hardware User’s Manual

Connecting by USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Connecting by RS-232C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Connecting to Ethernet (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) . . . . . . 4-9

4-1

4 Support Software

4-1

Support Software
“Support Software” refers to software applications for programming and debugging OMRON Programmable Controllers.

4-1-1

CX-One FA Integrated Tool Package
The CX-One provides an integrated package of Support Software for OMRON PLCs and components.
It consists of software applications for PLC programming, network settings, touch-panel screen creation, servo control, inverters, temperature control, and other functions.

CX-One Integrated Tool Package Contents

CX-One

● Motion control
● Touch-panel screen
creation

● Programming/simulation
CX-Position
CX-Motion-NCF

CX-Programmer

CX-Motion

CX-Simulator

CX-Designer
NV-Designer
SwitchBox Utility

CX-Motion-MCH

Loop Controller
Networks between PLCs

CX-Integrator

Devices by
other
manufacturers

Field
network

Serial

Network

CX-Process
Face Plate
Auto-Builder for NS

Configurator
CX-Protocol

● Protocol macro creation

● Network settings

Servo

● PLC-based
process control

Inverter

Temperature control
CX-Thermo
CX-Drive

● Temperature
control settings

● Servo/Inverter settings

SSR

4-2

CJ2 CPU Unit Hardware User’s Manual

4 Support Software

Application
Programming

CX-One Software

Description

CX-Programmer

Basic software for creating and debugging PLC programs.

SwitchBox Utility

Utility software to support PLC debugging operations.

CX-Integrator

Software for starting and setting FA networks, such as Controller Link,
DeviceNet, CompoWay/F, Ethernet, and CompoNet. Includes routing table components, data link components, and DeviceNet Configurator functions.

Network Configurator

Software for setting tag data links for the built-in EtherNet/IP port.

Network settings

NV-Designer

Software for creating screen data for touch panel NV-series PTs.

Protocol macro creation

CX-Protocol

Software for creating protocols (protocol macros) for exchanging data with general-purpose external devices connected to Serial Communications Boards/Units
and Option Boards.

Simulation

CX-Simulator

Software for simulating PLC operations on a personal computer and debugging
programs without requiring a CPU Unit.

CX-Position

Software for creating and monitoring data for Position Control Units.

CX-Motion-NCF

Software for creating and monitoring data for Position Control Units (MECHATROLINK communications models).

CX-Motion-MCH

Software for creating data for Motion Control Units (MECHATROLINK communications models), and for creating and monitoring motion programs.

CX-Motion

Software for creating data for Motion Control Units, and for creating and monitoring motion programs.

CX-Drive

Software for setting and adjusting Inverter and servo data.

CX-Process Tool

Software for creating and debugging function blocks for Loop Controllers (Loop
Control Units/Boards, Process CPU Units, and Loop CPU Units).

Face Plate Auto-Builder
for NS

Software for automatic generation of screen data (project files) for touch panel
NS-series PTs from Loop Controller function block tag information.

Touch-panel screen
creation

Motion Control

Servo/Inverter settings
PLC-based process
control
Temperature control
settings

Software for setting and adjusting Temperature Controller parameters.

CX-Thermo

CX-Programmer
The CX-Programmer is a basic software application for creating and debugging PLC programs.
Ladder
language
Programming

Tasks

Programming functions

ST language
SFC
language

FBs

Ladder
language

ST language

Simulation

CX-Programmer

Monitoring

Debugging and
maintenance
functions

I/O table creation

System configuration
setup

Special I/O Unit and
CPU Bus Unit settings

PLC Setup

CJ2 CPU Unit Hardware User’s Manual

CPU Unit
parameters

4-3

4
4-1-1 CX-One FA Integrated Tool Package

Software for making FL-net Unit system settings and performing monitoring.
Software for creating screen data for touch panel NS-series PTs.
4-1 Support Software

CX-FLnet
CX-Designer

4 Support Software

CX-Integrator
The CX-Integrator is a software application for setting up FA networks, such as Controller Link,
DeviceNet, CompoWay/F, Ethernet, and CompoNet.
Routing table settings

Network configuration
reading

General network
settings and monitoring

Network testing

CX-Integrator

Data link settings
Controller Link
Diagnosis
Controller Link
diagnosis

DeviceNet settings

CompoWay/F slave
settings

Controller Link
settings and monitoring

DeviceNet settings

CompoWay/F
settings

Network Configurator
The Network Configurator is software for setting tag data links using the built-in EtherNet/IP port.
Tag data link settings
EtherNet/IP network
settings and
monitoring

Network
Configurator
Device monitoring

4-4

CJ2 CPU Unit Hardware User’s Manual

4 Support Software

4-2

Connection Methods
A CJ2 CPU Unit can be directly connected to a personal computer running the CX-One Support Software (e.g., CX-Programmer) by using a USB cable or RS-232C cable. (The CP1W-CIF01 is required to
use a RS-232C cable with the CJ2M-CPU3@.) Also, an Ethernet twisted-pair cable can be used for the
CJ2H-CPU6@-EIP or CJ2M-CPU3@.

Connecting by USB

Connection Method
Using commercially available USB cable, connect CX-One Support Software via a standard peripheral
(USB) port at the personal computer.

CX-One (e.g., CX-Programmer)

4-2-1 Connecting by USB

B connector
A connector

CJ2 CPU Unit

USB port

Commercially available
USB cable*1
Peripheral (USB) port
(conforming to USB 2.0, B connector)

*1 Commercially available USB cable: 5 m max., for USB 1.1 or 2.0.

Connecting Cable
Use the following cable to connect the CJ2 CPU Unit to the computer running the Support Software.
Port at Unit
Peripheral (USB) port
(Conforms to USB
2.0, B connector)

Port at
computer
USB port

Network type
(communications
mode)
12 Mbps, USB 2.0

Model
Commercially available
USB cable (A connector
- B connector)

Length
5 m max.

Remarks
---

Before Connecting
In order to connect the PLC to a personal computer by USB, a USB driver must be installed in the personal computer. The USB driver for USB connections is automatically stored in the following directory in
the personal computer when CX-One is installed:
C:\Program Files\OMRON\CX-Server\USB\Win2000_XP\inf
When the personal computer is connected to the PLC by USB cable, the personal computer automatically recognizes the device and the USB driver installation is started. For details on how to install the
USB driver, refer to A-5 Installing the USB Driver.

CJ2 CPU Unit Hardware User’s Manual

4-2 Connection Methods

4-2-1

4-5

4 Support Software

CX-Programmer Settings
The method for connecting the PLC to the personal computer is set using the CX-Programmer. For
details on using the CX-Programmer to set the connection method, refer to the CJ2 CPU Unit Software
User’s Manual (Cat. No. W473).

Restrictions on Connecting by USB
Based on USB specifications, the following restrictions apply when connecting a personal computer
and components.
• Only one CJ2 CPU Unit can be connected by USB to a single personal computer. It is not possible to
connect multiple CJ2 CPU Units simultaneously.
• Do not remove the USB cable while connected online. The application must be offline before the
cable is removed. If the cable is removed while connected online, one of the following situations will
occur depending on the operating system.
• Windows 2000/XP
The Support Software online status will not be restored by simply re-inserting the USB cable.
Once the Support Software has gone offline, the cable must be re-inserted and the Support Software online connection operation must be repeated.
• Windows 98/Me
If the USB cable is removed while connected online, a blue error screen may be displayed. If that
occurs, the personal computer must be restarted.
Additional Information
The USB port on a computer can be connected to the PLC serial port (RS-232C) by using
CJ1W-CIF31 USB-Serial Conversion Cable. (The USB driver for the CJ1W-CIF31 must be
installed.)
Refer to A-5 Installing the USB Driver for the installation procedure for the USB driver.

USB A plug connector,
male
CS1W-CIF31
D-sub connector
(9-pin, male)

CJ2 CPU Unit
D-sub connector
(9-pin, male)

D-sub connector
(9-pin, female)

Recommended cable:
XW2Z-200S-CV/500S-CV or
XW2Z-200S-V/500S-V*1

RS-232C port,
D-sub connector
(9-pin, female)

*1 Only a Host Link connection is possible.

4-6

CJ2 CPU Unit Hardware User’s Manual

4 Support Software

4-2-2

Connecting by RS-232C

Connection Method
Using commercially available RS-232C cable, directly connect the CX-One Support Software (e.g., CXProgrammer) via a standard serial port at the personal computer.
The network type must be set to the Toolbus. A Host Link connection cannot be used.
4-2 Connection Methods

CX-One (e.g., CX-Programmer)

D-sub connector
(9-pin male)

CJ2 CPU Unit

D-sub connector
(9-pin male)
D-sub connector
(9-pin female)

4
4-2-2 Connecting by RS-232C

Recommended cable:
XW2Z-200S-CV/500S-CV

Serial port (RS-232C)
(9-pin female D-sub
connector) or Serial Option
Board (for CJ2M-CPU3@)
COMM

Additional Information
Connecting to the PLC by EtherNet/IP via USB or RS-232C
The Support Software can be directly connected by USB or RS-232C to one CJ2 CPU Unit and
access other CPU Units on the EtherNet/IP network via the built-in EtherNet/IP ports on the CJ2
CPU Units. For details, refer to the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
Personal computer
Access is possible.

USB

CJ2

USB
Built-in EtherNet/IP port
EtherNet/IP

CJ2 CPU Unit Hardware User’s Manual

4-7

4 Support Software

Connecting Cable
Use the following cable to connect the CJ2 CPU Unit to the computer running the Support Software.

Serial port
(RS-232C)
(D-sub, 9-pin,
female)

Network type
(communications
mode)

Port at
computer

Port at Unit

D-sub,
9-pin, male

Serial communications

Model

Length

XW2Z-200S-CV

XW2Z-500S-CV

Remarks
Use a static-resistant connector.

Precautions for Safe Use
• When the above cable connector is connected to the PLC serial port (RS-232C), be sure to
discharge static electricity by touching grounded metal before touching the cable connector.
The XW2Z-@@@S-CV Cable is particularly resistant to static electricity because it uses a
static-resistant connector hood (XM2S-0911-E). Even when this Cable is used, however, be
sure to discharge static electricity before touching the connector.
• Use the specialized cable described above for connecting cable. Using ordinary commercially
available RS-232C cable for personal computers may result in damage to external devices and
the CPU Unit.

Additional Information
It is possible to create RS-232C cable for connecting to the serial port (RS-232C). The connectors shown in the following table are included with the CJ2 CPU Unit as standard equipment for
creating cables. For details on creating cables, refer to A-4 Connecting to a Serial Port on the
CPU Unit.
Name

Model

Specifications

Plug

XM2A-0901

9-pin, male

Hood

XM2S-0911-E

9-pin static-resistant connector
with millimeter screws

Use in combination. (One of
each is provided as standard
equipment with the CPU Unit.)

Setting the Communications Protocol
Select the protocol for communications between the PLC and the CX-Programmer. For a SYSMAC
WAY (Host Link) connection, turn OFF pin 5 of the DIP switch on the front panel. For a peripheral bus
connection (faster than SYSMAC WAY), turn ON pin 5.

4-8

CJ2 CPU Unit Hardware User’s Manual

4 Support Software

4-2-3

Connecting to Ethernet (CJ2H-CPU6@-EIP and CJ2M-CPU3@
Only)

Connection Method

CX-One (e.g., CX-Programmer)

Built-in EtherNet/IP port

4-2 Connection Methods

With the CJ2H-CPU6@-EIP or CJ2M-CPU3@, use a commercially available Ethernet 100Base-TX STP
twisted-pair cable (straight) to connect the CX-One Support Software (e.g., CX-Programmer) to the
built-in EtherNet/IP port through the Ethernet switch. With the CJ2H-CPU6@-EIP, Ethernet twisted-pair
cable can also be used to connect to a personal computer. The same type of connection can be made
with the CJ2H-CPU6@ or CJ2M-CPU1@ through an EtherNet/IP Unit.

CJ2 CPU Unit

Ethernet switch
100Base-TX
twisted-pair cable
(straight)

Connecting Cable
Use the following cable to connect the CJ2 CPU Unit to the computer running the Support Software.
Port at Unit
Built-in EtherNet/IP port

Port at
computer
Ethernet
port

Network type (communications mode)
100Base-TX or 10BaseT*1

Model

Length

Commercially available
twisted-pair cable*2

100 m (Recommended
between Ethernet
switch and nodes.)

Commercially available
Ethernet switch*2, *3

---

Remarks
---

*1 Use 100Base-TX when using tag data links.
*2 The following table shows the devices recommended for use with the built-in EtherNet/IP port.
Part

Ethernet switch

Manufacturer

Model number

Inquires

OMRON

W4S1-03B
W4S1-05B
W4S1-05C

---

Cisco Systems, Inc.

Consult the manufacturer.

Cisco Systems, Inc. Main Corporate HQ

Contec USA, Inc.

Consult the manufacturer.

CONTEC USA Inc.

Phoenix Contact

Consult the manufacturer.

Phoenix Contact USA Customer Service

Hirschmann Automation
and Control

Consult the manufacturer.

Hirschmann Automation and Control (US)

F-LINK-E 0.5mm × 4P

Fujikura America, Inc.

100Base-TX
Twisted-pair cable

Fujikura
EtherNet/IP compliant cable

CJ2 CPU Unit Hardware User’s Manual

---

4-9

4-2-3 Connecting to Ethernet (CJ2H-CPU6@EIP and CJ2M-CPU3@ Only)

100Base-TX
twisted-pair cable
(straight)

4 Support Software

Part

Manufacturer

Model number

Inquires

Connectors
(Modular plug)

STP Plug
Panduit Corporation

MPS588

Panduit Corporation US Headquarters

Boots

Tsuko Company

MK boot (IV) LV

Tsuko Company Japan Headquarters

*3 Always use an Ethernet switch when using tag data links in the network. If a repeater hub is used for EtherNet/IP tag data links (cyclic communications), the network's communications load will increase, data collisions
will occur frequently, and stable communications will be impossible.

Before Connecting
To connect using Ethernet, first set the IP address and subnet mask of the computer in advance as
shown in the following example.
• IP Addresses
Example: 192.168.250.2
User-set value (1 to 254)
Value for same segment as IP address
of built-in EtherNet/IP port

• Subnet Mask
Example: 255.255.255.0.200
User-set value (0 to 252)
Class C mask

4-10

CJ2 CPU Unit Hardware User’s Manual

4 Support Software

Additional Information
• The CX-Programmer can be used for remote programming and monitoring. It can be used to
program and monitor not only the PLC to which it is directly connected, but also to program
and monitor any PLC connected through a Controller Link or Ethernet network to which the
PLC that the CX-Programmer is connected to is a part of. All programming and monitoring
functionality for the directly connected PLC is supported for remote programming and monitoring. For details, refer to 11-2 Serial Communications and 11-3 Communications Networks in
the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
Peripheral (USB) port
or RS-232C port

Peripheral bus
or Host Link

Remote programming
and monitoring

4-2 Connection Methods

CX-Programmer

FINS

Controller Link or Ethernet Network

CX-Programmer

4
Bridge

Ethernet Network

Controller Link Network
Controller Link Network
Gateway

Precautions for Correct Use
Connecting to a Programming Device through the built-in EtherNet/IP port will not be possible if
the following errors occur:
• I/O bus error
• Too many I/O points error
• Unit number duplication error
• Rack number duplication error
• I/O setting error
If any of the above errors occurs and connecting to the Programming Device through the built-in
EtherNet/IP port is not possible, connect through the USB port.

CJ2 CPU Unit Hardware User’s Manual

4-11

4-2-3 Connecting to Ethernet (CJ2H-CPU6@EIP and CJ2M-CPU3@ Only)

Peripheral bus or
Host Link

4 Support Software

4-12

CJ2 CPU Unit Hardware User’s Manual

Installation
This section describes how to install and wire a CJ2 PLC.

5-1 Fail-safe Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-2-1
5-2-2
5-2-3
5-2-4
5-2-5
5-2-6

Installation and Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Installation in a Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Assembled Appearance and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Connecting PLC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
DIN Track Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Connecting CJ-series Expansion Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

5-3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5-3-1
5-3-2
5-3-3
5-3-4
5-3-5
5-3-6
5-3-7

Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring CJ-series Basic I/O Units with Terminal Blocks . . . . . . . . . . . . . . . . .
Wiring Basic I/O Units with Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting to Connector-Terminal Block Conversion Units or
I/O Relay Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Pulse I/O Modules to External I/O Devices
(CJ2M CPU Unit Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting I/O Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting through an Ethernet Cable
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) . . . . . . . . . . . . . . . . . . . . . . . .

5-20
5-27
5-29
5-33
5-33
5-35
5-39

5-4 Control Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
5-4-1
5-4-2
5-4-3
5-4-4
5-4-5
5-4-6

CJ2 CPU Unit Hardware User’s Manual

Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vibration and Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-42
5-44
5-44
5-44
5-45
5-50

5-1

5 Installation

5-1

Fail-safe Circuits
Be sure to set up safety circuits outside of the PLC to prevent dangerous conditions in the event of
errors in the PLC or external power supply.

Order of Powering Up the CPU Unit and Controlled System
Outputs from Units such as DC Output Units may malfunction momentarily when the power to the PLC
is turned ON. This may cause problems in the system if the PLC's power supply is turned ON after the
controlled system's power supply. To prevent possible malfunctions, add an external circuit that prevents the power supply to the controlled system from going ON before the power supply to the PLC
itself.

Managing CPU Unit Errors
When any of the following errors occurs, PLC operation will stop and all outputs from Output Units will
be turned OFF.
• Operation of the Power Supply Unit's overcurrent protection circuit
• A CPU error (watchdog timer error) or CPU on standby
• A fatal error (memory error, Memory Card transfer error, I/O bus error, Unit/Rack number duplication
error, too many I/O points error, I/O setting error, program error, cycle time exceeded error, or
FALS(007) error)*1
Be sure to add any circuits necessary outside of the PLC to ensure the safety of the system in the event
of an error that stops PLC operation.
*1 When a fatal error occurs, all outputs from Output Units will be turned OFF even if the IOM Hold Bit has been
turned ON to protect the contents of I/O memory. (When the IOM Hold Bit is ON, the outputs will retain their
previous status after the PLC has been switched from RUN/MONITOR mode to PROGRAM mode.)

Managing Output Malfunctions
It is possible for an output to remain ON due to a malfunction in the internal circuitry of the Output Unit,
such as a relay or transistor malfunction. Be sure to add any circuits necessary outside of the PLC to
ensure the safety of the system in the event that an output fails to go OFF.

5-2

CJ2 CPU Unit Hardware User’s Manual

5 Installation

Emergency Stop Circuit
The following emergency stop circuit controls the power supply to the controlled system so that power is
supplied to the controlled system only when the PLC is operating and the RUN output is ON.
An external relay (CR1) is connected to the RUN output from the Power Supply Unit*1 as shown in the
following diagram.
*1 A RUN output is provided only on the CJ1W-PA205R Power Supply Unit. When a Power Supply Unit without a
RUN output is used, program the Always ON Flag (A1) as the execution condition for an output point from an
Output Unit.

z Electrical Diagram
MCB1
5-1 Fail-safe Circuits

Power supply
MCB2
CR1

Controlled system
Transformer
or noise filter

Twisted-pair wires

CJ-series
PLC

DC voltage
regulator
DC
input/output

PLC RUN
output
CR1

Surge suppressor

Interlock Circuits
When the PLC controls an operation such as the clockwise and counterclockwise operation of a motor,
provide an external interlock such as the one shown in the following example to prevent both the forward and reverse outputs from turning ON at the same time.
Interlock circuit
000501

MC2
MC1 Motor clockwise

CJ-series
PLC

000502

MC1
MC2 Motor counterclockwise

This circuit prevents outputs MC1 and MC2 from both being ON at the same time even if both
CIO 000501 and CIO 000502 are ON, so the motor is protected even if the PLC is programmed improperly or malfunctions.

CJ2 CPU Unit Hardware User’s Manual

5-3

5 Installation

5-2

Installation

5-2-1

Installation and Wiring Precautions

Installation in Cabinets or Control Panels
When the PLC is being installed in a cabinet or control panel, be sure to provide proper ambient conditions as well as access for operation and maintenance.

z Temperature Control
The ambient temperature within the enclosure must be within the operating range of 0 to 55°C.
When necessary, take the following steps to maintain the proper temperature.
• Provide enough space for good air flow.
• Do not install the PLC above equipment that generates a large amount of heat such as heaters,
transformers, or high-capacity resistors.
• If the ambient temperature exceeds 55°C, install a cooling fan or air conditioner.
Fan

Control
panel

CJ-series
PLC

Louver

z Accessibility for Operation and Maintenance
• To ensure safe access for operation and maintenance, separate the PLC as much as possible
from high-voltage equipment and power machinery.
• The PLC will be easiest to install and operate if it is mounted at a height of 1.0 to 1.6 m above the
floor.

z Improving Noise Resistance
• Do not mount the PLC in a control panel containing high-voltage equipment.
• Install the PLC at least 200 mm from power lines.
Power lines

200 mm min.
CJ-series
PLC

200 mm min.

• Ground the mounting plate between the PLC and the mounting surface.
• When I/O Connecting Cables are 10 m or longer, connect the control panels in which Racks are
mounted with heavier power wires (3 wires at least 2 mm2 in cross-sectional area).
5-4

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z PLC Orientation
• Each Rack must be mounted in an upright position to provide proper cooling.

• Do not install a Rack in any of the following positions.

5-2 Installation

5
5-2-1 Installation and Wiring Precautions

Precautions for Safe Use
Always use the standard installation method. A nonstandard installation will decrease heat dissipation, and may delay the replacement notification signal (in particular for Power Supply Units
with Replacement Notification (CJ1W-PA205C)), or degrade or damage the internal elements.

CJ2 CPU Unit Hardware User’s Manual

5-5

5 Installation

5-2-2

Installation in a Control Panel

Control Panel Installation Dimensions
A CJ-series PLC must be mounted inside a control panel on DIN Track. Normally the CPU Rack is
installed on top and the Expansion Racks under it.
DIN Track

• Consider the width of wiring ducts, wiring, ventilation, and Unit replacement when determining the
space between Racks.
Additional Information
A CJ-series PLC must be mounted on DIN Track. It cannot be mounted with screws.
• Whenever possible, route I/O wiring through wiring ducts or raceways. Install the duct so that it is
easy to fish wire from the I/O Units through the duct. It is handy to have the duct at the same
height as the Racks.
Duct
20 mm min.

Unit

DIN Track

20 mm min.
Duct

5-6

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Wiring Ducts
81.6 to 89 mm

CPU
Rack

30 mm

30 mm
40 mm
Duct

Expansion
Rack

Mounting
bracket

Precautions for Correct Use
Tighten terminal block screws and cable screws to the following torques.

5-2 Installation

Terminal Screws
M4: 1.2 N·m
M3: 0.5 N·m
Cable Connector Screws
M2.6: 0.2 N·m

z Routing Wiring Ducts
Install the wiring ducts at least 20 mm between the tops of the Racks and any other objects, (e.g.,
ceiling, wiring ducts, structural supports, devices, etc.) to provide enough space for air circulation
and replacement of Units.
Output duct

5-2-2 Installation in a Control Panel

Input duct

Power duct
200 mm min.

CPU Rack

Breakers,
fuses

Expansion Rack
Power
equipment
such as
transformers
and magnetic
relays

Fuses, relays, timers, etc.
(NOT heat-generating equipment, power equipment, etc.)

CJ2 CPU Unit Hardware User’s Manual

Terminal blocks
for PLC

Terminal blocks for
power equipment

5-7

5 Installation

5-2-3

Assembled Appearance and Dimensions
The CJ-series Units, including the Power Supply Unit, the CPU Unit, and I/O Units, are connected to
each other and an End Cover is connected to the right end.

Dimensions (Unit: mm)
Power Supply Unit
Name

Model number

Power Supply Unit

Specifications

Unit width

CJ1W-PA205R

100 to 240 VAC, 25 W

80 mm

CJ1W-PA205C

100 to 240 VAC, 25 W

80 mm

CJ1W-PA202

100 to 240 VAC, 14 W

45 mm

CJ1W-PD025

24 VDC, 25 W

60 mm

CJ1W-PD022

24 VDC, 19.6 W

27 mm

CPU Unit
Name
CPU Unit

5-8

Model number

Specifications

CJ2H-CPU68-EIP

I/O points: 2,560
Program capacity: 400 Ksteps

CJ2H-CPU67-EIP

I/O points: 2,560
Program capacity: 250 Ksteps

CJ2H-CPU66-EIP

I/O points: 2,560
Program capacity: 150 Ksteps

CJ2H-CPU65-EIP

I/O points: 2,560
Program capacity: 100 Ksteps

CJ2H-CPU64-EIP

I/O points: 2,560
Program capacity: 50 Ksteps

CJ2H-CPU68

I/O points: 2,560
Program capacity: 400 Ksteps

CJ2H-CPU67

I/O points: 2,560
Program capacity: 250 Ksteps

CJ2H-CPU66

I/O points: 2,560
Program capacity: 150 Ksteps

CJ2H-CPU65

I/O points: 2,560
Program capacity: 100 Ksteps

CJ2H-CPU64

I/O points: 2,560
Program capacity: 50 Ksteps

Unit width
79.8 mm

48.8 mm

CJ2 CPU Unit Hardware User’s Manual

5 Installation

Name

Model number

CPU Unit

Specifications
I/O points: 2,560
Program capacity: 60 Ksteps

CJ2M-CPU34

I/O points: 2,560
Program capacity: 30 Ksteps

CJ2M-CPU33

I/O points: 2,560
Program capacity: 20 Ksteps

CJ2M-CPU32

I/O points: 2,560
Program capacity: 10 Ksteps

CJ2M-CPU31

I/O points: 2,560
Program capacity: 5 Ksteps

CJ2M-CPU15

I/O points: 2,560
Program capacity: 60 Ksteps

CJ2M-CPU14

I/O points: 2,560
Program capacity: 30 Ksteps

CJ2M-CPU13

I/O points: 2,560
Program capacity: 20 Ksteps

CJ2M-CPU12

I/O points: 2,560
Program capacity: 10 Ksteps

CJ2M-CPU11

I/O points: 2,560
Program capacity: 5 Ksteps

62 mm*

31 mm*

5-2 Installation

CJ2M-CPU35

Unit width

* The width of the CPU Rack will increase by 20 mm for each CJ2M-MD21@ Pulse I/O Module that is connected to
the CJ2M CPU Unit.

20-mm-wide Units
Name

Model number

I/O Control Unit

CJ1W-IC101

32-point Basic I/O Units

CJ1W-ID231/ID232/ID233

Unit width
20 mm

CJ1W-OD231/OD232/OD233/OD234
B7A Interface Units

CJ1W-B7A22
CJ1W-B7A14
CJ1W-B7A04

CompoBus/S Master Unit

CJ1W-SRM21

Space Unit

CJ1W-SP001

CJ2 CPU Unit Hardware User’s Manual

5
5-2-3 Assembled Appearance and Dimensions

Other than the CPU Units and Power Supply Units, CJ-series Units come in four widths:
20 mm, 31 mm, 51 mm, and 79.8 mm.

5-9

5 Installation

31-mm-wide Units
Name

Model number

I/O Interface Unit

CJ1W-II101

8-point and 16-point Basic I/O Units

CJ1W-ID201
CJ1W-ID211/212
CJ1W-IA111/201
CJ1W-OD20@
CJ1W-OD211/212/213
CJ1W-OC201/211
CJ1W-OA201

32-point Basic I/O Units

CJ1W-MD231/232/233

64-point Basic I/O Units

CJ1W-ID261
CJ1W-OD261
CJ1W-MD261

Unit width
31 mm

CJ1W-ID262
CJ1W-OD262/263
CJ1W-MD263/563

5-10

Interrupt Input Unit

CJ1W-INT01

Quick-response Input Unit

CJ1W-IDP01

Analog I/O Units

CJ1W-ADG41
CJ1W-AD@@@-V1
CJ1W-AD042
CJ1W-DA@@@
CJ1W-DA042V
CJ1W-MAD42

Process I/O Units

CJ1W-AD04U
CJ1W-PH41U
CJ1W-PTS51/52/15/16
CJ1W-PDC15

Temperature Control Units

CJ1W-TC@@@

Position Control Units (with pulsestring outputs)

CJ1W-NC113/133/213/233/413/433

Position Control Units (with EtherCAT communications)

CJ1W-NC281/481/881/NCF81
CJ1W-NC482/882

MECHATROLINK-II Position Control
Unit

CJ1W-NCF71(-MA)

High-speed Counter Unit

CJ1W-CT021

ID Sensor Units

CJ1W-V680C11
CJ1W-V680C12
CJ1W-V600C11
CJ1W-V600C12

Controller Link Unit

CJ1W-CLK23

Serial Communications Units

CJ1W-SCU41-V1
CJ1W-SCU21-V1
CJ1W-SCU31-V1
CJ1W-SCU22/32/42

Ethernet Unit

CJ1W-ETN21

EtherNet/IP Unit

CJ1W-EIP21

DeviceNet Unit

CJ1W-DRM21

CompoNet Master Unit

CJ1W-CRM21

FL-net Unit

CJ1W-FLN22

CJ2 CPU Unit Hardware User’s Manual

5 Installation

51-mm-wide Units
Name

Model number

SYSMAC SPU Unit (Highspeed Data Storage Unit)

CJ1W-SPU01-V2

Position Control Units

CJ1W-NC214/234

Unit width
51 mm

62-mm-wide Units
Name

Model number

Position Control Units

CJ1W-NC414/434

Unit width
62 mm

79.8-mm-wide Units
Name

Model number

MECHATROLINK-II
Motion Control Unit

CJ1W-MCH71

Unit width
79.8 mm

Power
Supply Unit

CPU Unit

5-2 Installation

z Design Example for Width W
Configuration Units

5
5-2-3 Assembled Appearance and Dimensions

Power Supply Unit: CJ1W-PA205R (80 mm)
CPU Unit: CJ2H-CPU68-EIP (79.8 mm)
Basic I/O Units: CJ1W-ID231 (20 mm) × 2
Special I/O Units: CJ1W-AD081-V1 (31 mm) × 4
CPU Bus Unit: CJ1W-MCH71 (79.8 mm)
W = 80 + 79.8 + 20 x 2 + 31 × 4 + 79.8 × 1 + 14.7 (End Cover) = 418.3 mm

CJ2 CPU Unit Hardware User’s Manual

5-11

5 Installation

Installation Dimensions (Unit: mm)
A
27.5
90

35
27.5

DIN Track

PFP-100N2

16 mm

PFP-100N
PFP-50N

7.3 mm
7.3 mm

Installation Height
The installation height of the CJ-series CPU Rack and Expansion Racks varies from 81.6 to 89.0 mm,
depending on the I/O Units that are mounted. When a Programming Device (e.g., CX-Programmer) is
connected, however, even greater height is required. Allow sufficient depth in the control panel containing the PLC.
Approx. 100 to 150 mm

81.6 to 89.0 mm

5-12

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-2-4

Join the Units so that the connectors fit exactly.
Hook

Hook holes
Connector

5-2 Installation

The yellow sliders at the top and bottom of each Unit lock the Units together. Move the sliders
toward the back of the Units as shown below until they click into place.

5-2-4 Connecting PLC Components

Move the sliders toward the back
until they lock into place.

Lock
Release

Slider

CJ2 CPU Unit Hardware User’s Manual

5-13

5 Installation

Attach the End Cover to the Unit on the far right side of the Rack.

● CJ2H CPU Unit
CPU Rack

Power Supply
Unit

(I/O Control Unit) *1

CPU Unit

I/O Units (10 max.)

End Cover
(included with CPU Unit)

*1: Connect the I/O Control Unit directly to the CPU Unit to enable connecting Expansion
Racks.

● CJ2M CPU Unit
CPU Rack

Power Supply
Unit

(Pulse I/O Module) *2

CPU Unit

(I/O Control Unit) *1
I/O Units (10 max.)

End Cover
(included with CPU Unit)

*1: Connect the I/O Control Unit directly to the CPU Unit to enable connecting Expansion Racks.
*2: Up to two Pulse I/O Modules can be connected to the left of the CPU Unit.

Expansion Rack

Power Supply
Unit

I/O Interface Unit *3
I/O Units (10 max.)

End Cover
(included with
I/O Interface Unit)

*3: Connect the I/O Interface Unit directly to the Power Supply Unit.

Additional Information
There is no Backplane for the CJ-series. The PLC is constructed by connecting Units together
using the connectors on the sides.

Precautions for Correct Use
• Always turn OFF the power supply before connecting Units to each other.
• Always turn OFF the power supply to the entire system before replacing a Unit.
• A maximum of 10 Units can be connected in any one CPU or Expansion Rack. If more than
the maximum number of Units are connected, a too many I/O points error (fatal error) will
occur and the CJ2 CPU Unit will not operate in either RUN or MONITOR mode. If this occurs,
the I/O Overflow Flag (A401.11) will turn ON and A407.13 to A407.15 (I/O Overflow Details 2)
will turn ON.

5-14

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-2-5

DIN Track Installation
Use the following procedure to install a CJ-series PLC on DIN Track.

Release the pins on the backs of the CJ-series Units.

Release
DIN Track
mounting pins

Fit the back of the PLC onto the DIN Track by inserting the top of the track and then pressing in
at the bottom of the PLC, as shown below.
1

5-2 Installation

5
5-2-5 DIN Track Installation

DIN Track

Lock the pins on the backs of the CJ-series Units.

DIN Track
mounting pins

CJ2 CPU Unit Hardware User’s Manual

5-15

5 Installation

Install a DIN Track End Plate on each end of the PLC. To install an End Plate, hook the bottom
on the bottom of the track, rotate the Plate to hook the top of the Plate on the top of the track,
and then tighten the screw to lock the Plate in place.
2

End Plates

DIN Track and Accessories
Use the DIN Track and DIN Track End Plates shown below. Secure each DIN Track inside a control
panel with at least three screws.
• DIN Track
Model numbers: PFP-50N (50 cm), PFP-100N (100 cm), PFP-100N2 (100 cm)

Secure the DIN Track to the control panel using M4 screws separated by 210 mm (6 holes) or less and
using at least 3 screws. The tightening torque is 1.2 N·m.
PFP-100N2 DIN Track

Twenty-eight, 25 × 4.5 oblong holes

4.5
30

25
1000

0.3 27

29.2

PFP-100N/50N DIN Track

7.3

1.5

0.15

4.5
35

1000 (500)*

15 (5)*

0.3

0.15

* PFP-50N dimensions are
given in parentheses.

• PFP-M DIN Track End Plates (2 required)

5-16

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-2-6

Connecting CJ-series Expansion Racks
CS/CJ-series I/O Connecting Cables are used to connect the CPU Rack and Expansion Racks.

z CS/CJ-series I/O Connecting Cables
• These connectors are equipped with easy-lock connectors.
• Use them to connect the CPU Rack to an Expansion Rack or to connect two Expansion Racks.
Model number

Cable length
0.3 m

CS1W-CN713

0.7 m

CS1W-CN223

CS1W-CN323

CS1W-CN523

CS1W-CN133

10 m

CS1W-CN133B2

12 m

• The CJ-series I/O Connecting Cables are used to connect the I/O Control Unit on the CPU Rack
to the I/O Interface Unit on an Expansion Rack or to connect the I/O Interface Units on two Expansion Racks.

• The following diagram shows where each I/O Connecting Cable must be connected on each
Rack. The Rack will not operate if the cables aren’t connected properly. (The “up” direction is
towards the CPU Unit and “down” is away from the CPU Unit.)
CPU Unit I/O Control Unit

CPU Rack

Power Supply
Unit
Down

Expansion Rack

Power
Supply Unit
I/O Interface Unit
Down

CJ2 CPU Unit Hardware User’s Manual

5-17

5
5-2-6 Connecting CJ-series Expansion Racks

• Install the Racks and select I/O Connecting Cables so that the total length of all I/O Connecting
Cables does not exceed 12 m.

5-2 Installation

CS1W-CN313

5 Installation

z Cable Connections
The following diagram shows examples of proper Rack connections. Connect the simple lock connectors to the I/O Control Unit on the CJ-series CPU Rack and the I/O Interface Unit on the CJseries Expansion Rack.
Power
Supply Unit

CPU Unit

I/O Control Unit

CPU Rack

I/O Interface Unit

I/O Connecting Cable

Power Supply Unit

Expansion Rack
Total cable
length:
12 m max.

I/O Interface Unit

I/O Connecting Cable

Power Supply Unit

Expansion Rack

I/O Interface Unit

I/O Connecting Cable

Power Supply Unit

Expansion Rack

• The top and bottom of the connector are different. Be sure the connector is facing the correct
direction before connecting it.

z Connecting the Simple Locking Connectors
Press the tabs on the end of the connector and insert the connector until it locks in place. The PLC
will not operate properly if the connector isn’t inserted completely.
To remove the connector, press the tabs and pull on the connector.

5-18

CJ2 CPU Unit Hardware User’s Manual

5 Installation

Precautions for Correct Use
• When using an I/O Connecting Cable with a locking connector, be sure that the connector is
firmly locked in place before using it.
• Always turn OFF the power supply to the PLC before connecting a cable.
• An I/O bus error will occur and the PLC will stop if an I/O Connecting Cable's connector separates from the Rack. Be sure that the connectors are secure.
• A 63-mm hole will be required if the I/O Connecting Cable must pass through a hole when connecting an Expansion Rack.
• Do not bend the I/O Connecting cable past its natural bending radius or pull in it with excessive
force.
• The cables can withstand a pulling force up to 49 N (11 lbs), so be sure that they are not pulled
too forcefully.
• The I/O Connecting Cables mustn't be bent too severely. The minimum bending radii are
shown in the following diagram.
5-2 Installation

R = 69 mm min.

Cable outer diameter: 8.6 mm

CJ1W-II101
I/O Interface Unit

II101

OUT

Output connector cover

CJ2 CPU Unit Hardware User’s Manual

5-19

5-2-6 Connecting CJ-series Expansion Racks

• Always attach the cover to the output connector (left side) on the last I/O Interface Unit on the
last Expansion Rack to protect it from dust.

5 Installation

5-3

Wiring

5-3-1

Power Supply Wiring

AC Power Supply Units
z CJ1W-PA205R Power Supply Unit
PA205R

M4 self-raising screw terminals

POWER

AC power supply
L1

Isolation
transformer
1:1

AC power supply
100 to 240 V

RUN output
ON when CPU Unit is in RUN or
MONITOR mode.
OFF when CPU Unit is in
PROGRAM mode or stopped for
a fatal error.

AC100-240V
INPUT
L2/N

RUN
OUTPUT
AC240V
DC24V

Power
supply

Additional Information
The RUN output function is enabled only when mounted to a CPU Rack.

z AC Power Source
• Supply 100 to 240 VAC.
• Keep voltage fluctuations within the specified range:
Supply voltage
100 to 240 VAC

Allowable voltage fluctuations
85 to 264 VAC

• If one power supply phase of the equipment is grounded, connect the grounded phase side to the
L2/N terminal.

z Isolation Transformer
The PLC's internal noise isolation circuits are sufficient to control typical noise in power supply lines,
but noise between the PLC and ground can be significantly reduced by connecting a 1-to-1 isolation
transformer. Do not ground the secondary coil of the transformer.

z Power Supply Capacity
The power consumption will be 100 VA max. per Rack for the CJ1W-PA205R/PA205C and 50 VA for
the CJ1W-PA202, but there will be a surge current of at least 5 times the max. current when power is
turned ON.

z RUN Output
The RUN output is provided only on the CJ1W-PA25R Power Supply Unit. This output is ON whenever the CPU Unit is operating in RUN or MONITOR mode; it is OFF when the CPU Unit is in PROGRAM mode or a fatal error has occurred (including execution of the FALS(007) instruction).

5-20

CJ2 CPU Unit Hardware User’s Manual

5 Installation

The RUN output can be used to control external systems, such as in an emergency stop circuit that
turns off the power supply to external systems when the PLC is not operating. (Refer to 5-1 Fail-safe
Circuits for more details on the emergency stop circuit.)
Item

CJ1W-PA205R

Contact form

SPST-NO

Maximum switching
capacity

240 VAC: 2 A for resistive loads
120 VAC: 0.5 A for inductive loads
24 VDC:2 A for resistive loads
24 VDC:2 A for inductive loads

z Crimp Terminals
The terminals on the Power Supply Unit are M4, self-raising terminals with screws.
Precautions for Correct Use
• Use crimp terminals for wiring.
5-3 Wiring

• Do not connect bare stranded wires directly to terminals.
• Tighten the terminal block screws to the torque of 1.2 N·m.
• Use round-type crimp terminals (M4) having the dimensions shown below.
• Crimp Terminals for AC Power Supplies

7 mm max.

5-3-1 Power Supply Wiring

20 mm max.
M4 self-raising terminals

Torque to 1.2 N •m

! Caution
Tighten the AC power supply terminal screws to a torque of 1.2 N·m. Loose screws
may result in short-circuit, malfunction, or fire.

Precautions for Safe Use
• Supply power to all of the Power Supply Units from the same source.
• Do not remove the protective label from the top of the Unit until wiring has been completed.
This label prevents wire strands and other foreign matter from entering the Unit during wiring
procedures.
• Do not forget to remove the label from the top of the Power Supply Unit after wiring the Unit.
The label will block air circulation needed for cooling.

CJ2 CPU Unit Hardware User’s Manual

5-21

5 Installation

DC Power Supplies
z CJ1W-PD025 Power Supply Unit
Screw terminals (M4 head with
self-raising pressure plate)

PD025
POWER

DC24V+
INPUT

DC power supply

z DC Power Source
Supply 24 VDC. Keep voltage fluctuations within the specified range.
Model

Allowable voltage fluctuation range

CJ1W-PD025

19.2 to 28.8 VDC (±20%)

CJ1W-PD022

21.6 to 26.4 VDC (±10%)

z Power Supply Capacity
The maximum power consumption is 50 W (CJ1W-PD025)/35 W (CJ1W-PD022) per Rack, but there
will be a surge current of about five times that level when the power is turned ON.

z Precautions when Using CJ1W-PD022 Non-insulated Power Supply Units

! Caution
When connecting a personal computers or other peripheral devices to a PLC to which a noninsulated Power Supply Unit (CJ1W-PD022) is mounted, either ground the 0 V side of the
external power supply or do not ground the external power supply at all ground. A short-circuit will occur in the external power supply if incorrect grounding methods are used. Never
ground the 24 V side, as shown below.
Wiring in Which the 24-V Power Supply Will Short
Non-insulated

24 V DC power supply
0V

5-22

Peripheral
cable

Power Supply
Unit

CPU Unit

Peripheral device (e.g.,
personal computer)

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Crimp Terminals
The terminals on the Power Supply Unit are M4, self-raising terminals with screws.
Precautions for Correct Use
• Use crimp terminals for wiring.
• Do not connect bare stranded wires directly to terminals.
• Tighten the terminal block screws to the torque of 1.2 N·m.
• Use crimp terminals (M4) having the dimensions shown below.
Crimp Terminals for DC Power Supplies
7 mm max.

7 mm max.

PA205R
POWER

L2/N

RUN
OUTPUT
AC240V
DC24V

LG (Noise-filter neutral terminal)
Ground this terminal to less than 100 Ω
to improve noise resistance and prevent
electric shock.
GR (Ground terminal)
Ground this terminal to less than 100 Ω
to prevent electric shock.

• To help prevent electrical shock, ground the ground terminal (GR:
) with a ground resistance of
less than 100 Ω using a 14-gauge wire (minimum cross-sectional area of 2 mm2).
• The line ground terminal (LG: ) is a noise-filtered neutral terminal. If noise is a significant source of
errors or electrical shocks are a problem, connect the line ground terminal to the ground terminal and
ground both with a ground resistance of less than 100 Ω.
• If the LG and GR terminals are connected, ground to a resistance of 100 Ω or less to prevent electric
shock.
• The ground wire should not be more than 20 m long.
• The CJ-series PLCs are designed to be mounted so that they are isolated (separated) from the
mounting surface to protect them from the effects of noise in the installation environment (e.g., the
control panel).
• Do not share the PLC’s ground with other equipment or ground the PLC to the metal structure of a
building. The configuration shown in the following diagram may worsen operation.

CJ2 CPU Unit Hardware User’s Manual

5
5-3-1 Power Supply Wiring

Grounding

AC100-240V
INPUT

5-3 Wiring

• Be sure not to reverse the positive and negative leads when wiring the power supply terminals.

5-23

5 Installation

z Crimp Terminals for DC Power Supply
7 mm max.

7 mm max.

Alarm Output
An alarm output is provided on Power Supply Units with a replacement notification function. Connect
the alarm output to a PLC's Input Unit or external LED indicator to enable notification when Power Supply Unit replacement is required.

z CJ1W-PA205C Power Supply Unit
CJ1W-PA205C
POWER

AC100-240V
INPUT
L1

TEST
L2/N
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM:OFF

NC
NC

24 VDC
power supply

Alarm output (replacement notification output)
ON when replacing the Power Supply Unit is
not required for at least 6 months.

z Output Specifications
• ON (normal): Power Supply Unit replacement not required for at least 6 months.
• OFF: Power Supply Unit replacement required within 6 months.
• Transistor open-collector outputs
• Maximum switching capacity: 30 VDC max., 50 mA max.
• ON: Residual voltage of 2 V max., OFF: Leakage current of 0.1 mA max.

5-24

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Wiring
The following wire gauges are recommended.
Recommended
wire size

Use

AWG 22 to 18
(0.32 to 0.82 mm2)

Connecting to PLC terminal
block models

AWG 28 to 24
(0.08 to 0.2 mm2)

Connecting to PLC connector
models

Pushing
strength (clamping operation)

Pulling strength
(holding force)

Length of
stripped section

30 N max.

30 N min.

7 to 10 mm

10 N min.

z PLC Input Unit Wiring Example
Connect the positive terminals of the 24-VDC power supply to the Input Unit common (COM) terminals.
CJ1W-PA205C

CPU Unit

IN Unit
CJ1W-ID2@@

CJ1W-PA205C

5-3 Wiring

POWER

AC100-240V
INPUT

IN0

TEST

L2/N
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF

L
IN(N)

IN(N+1)

COM

24-VDC power supply

CJ1W-PA205C

CPU Unit

IN Unit
CJ1W-ID2@@

CJ1W-PA205C
POWER

AC100-240V
INPUT

IN0

TEST

L2/N
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF

L
IN(N)

NC
NC

IN(N+1)
COM

24-VDC power supply

CJ2 CPU Unit Hardware User’s Manual

5-25

5-3-1 Power Supply Wiring

Connect the negative terminal of the 24-VDC power supply to the Input Unit common (COM) terminal.

5 Installation

z External Display Device Connection Example
The alarm output (replacement notification output) is an NC contact. Therefore, wire the alarm output using an NC contact or other means to turn ON an error indicator or LED display as shown in the
following diagram.
CJ1W-PA205C
POWER

AC100-240V
INPUT
L1

TEST

L2/N
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF

Power
supply

24-VDC power supply

Relay
(NC contacts)

Note The OL display will also light if the PLC's power supply fails.

Precautions for Safe Use
• Separate the alarm output cables from power lines and high-voltage lines.
• Do not apply a voltage or connect a load to the alarm output that exceeds the rated voltage or
load.

5-26

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-3-2

Wiring CJ-series Basic I/O Units with Terminal Blocks

Precautions for Wiring I/O Units
z I/O Unit Specifications
Double-check the specifications for the I/O Units. In particular, do not apply a voltage that exceeds
the input voltage for Input Units or the maximum switching capacity for Output Units. Doing so may
result in breakdown, damage, or fire.
When the power supply has positive and negative terminals, be sure to wire them correctly.

z Electric Wires
• The following wire gauges are recommended.
Terminal Block Connector
18-terminal

Wire Size
AWG 22 to 18 (0.32 to 0.82 mm2)
5-3 Wiring

• The current capacity of electric wire depends on factors such as the ambient temperature and
insulation thickness as well as the gauge of the conductor.

z Crimp Terminals

The terminals on the I/O Unit are M3, self-raising terminals with screws.

5-3-2 Wiring CJ-series Basic I/O Units with
Terminal Blocks

Precautions for Correct Use
• Use crimp terminals for wiring.
• Do not connect bare stranded wires directly to terminals.
• Tighten the terminal block screws to the torque of 0.5 N·m.
• Use crimp terminals (M3) having the dimensions shown below.
6.2 mm max.

CJ2 CPU Unit Hardware User’s Manual

6.2 mm max.

5-27

5 Installation

z Wiring
• Make sure that all Units are connected properly.
• Do not remove the protective label from the top of the Unit until wiring has been completed.
• This label prevents wire strands and other foreign matter from entering the Unit during wiring procedures.
• Remove the label after wiring has been completed to allow air circulation needed for cooling.
During wiring
OD211
0
8

1 2 3 4 5 6 7
9 10 11 12 13 14 15

After wiring
OD211
0
8

2 3 4 5 6 7
9 10 11 12 13 14 15

Remove the label.

• Wire the Units so that they can be easily replaced.
• Make sure that the I/O indicators are not covered by the wiring.
• Do not place the wiring for I/O Units in the same duct or raceway as power lines. Inductive noise
can cause errors in operation.
• Tighten the terminal screws to the torque of 0.5 N·m.
17.5 mm

Screw (M3 screw with
self-raising pressure plate)

z Terminal Blocks
• The I/O Units are equipped with removable terminal blocks. The lead wires do not have to be
removed from the terminal block to remove it from an I/O Unit.
• After you complete wiring, check to see if the terminal block is securely locked.

OD211
0 1 2 3 4 5 6 7
8 9 10 11 12 13 14 15

Terminal block lever

CJ-series Basic I/O Unit

5-28

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-3-3

Wiring Basic I/O Units with Connectors
This section describes wiring for CJ-series Basic I/O Units with connectors (32- and 64-point Units).
Depending on the connector, the following methods are used to connect these Units to external I/O
devices.
• Use an OMRON Connecting Cable (equipped with a special connector) to connect to a Terminal
Block or Relay Terminal.
• Use a special connector and user-provided cable.
Precautions for Safe Use
• Be sure not to apply a voltage that exceeds the input voltage for Input Units or the maximum
switching capacity for Output Units.
• When the power supply has positive and negative terminals, be sure to wire them correctly.
Loads connected to Output Units may malfunction if the polarity is reversed.

• When connecting the connector to the I/O Unit, tighten the connector screws to a torque of
0.2 N·m.
• Turn ON the power after checking the connector's wiring.

5-3 Wiring

• Use reinforced insulation or double insulation on the DC power supply connected to DC I/O
Units when required by EC Directives (low voltage).

• Do not pull the cable. Doing so will damage the cable.

• Bending the cable too sharply can damage or break wiring in the cable.

CJ-series Basic I/O Units with 32 or 64 points and Fujitsu connectors have the same connector
pin allocations as the C200H High-density I/O Units and CS-series I/O Units with connectors to
make them compatible.

Connecting to a Connector-Terminal Block Conversion Unit or I/O
Relay Terminal
For details on using OMRON Connecting Cables equipped with special connectors to connect Basic I/O
Units with connectors to OMRON Connector-Terminal Block Conversion Units or I/O Relay Terminals,
refer to A-1-4 Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals.

CJ2 CPU Unit Hardware User’s Manual

5-29

5-3-3 Wiring Basic I/O Units with Connectors

Additional Information

5 Installation

Using User-made Cables with Connector
z Available Connectors
Use the following connectors when assembling a connector and cable.
CJ-series 32- and 64-point Basic I/O Units with Fujitsu-compatible Connectors
Applicable Units
Model

Specifications

Pins

CJ1W-ID231

Input Unit, 24 VDC, 32 inputs

CJ1W-ID261

Input Unit, 24 VDC, 64 inputs

CJ1W-OD231

Transistor Output Unit with Sinking Outputs, 32 outputs

CJ1W-OD261

Transistor Output Unit with Sinking Outputs, 64 outputs

CJ1W-MD261

24-VDC Input/Transistor Output Units, 32 Inputs, 32 Outputs

CJ1W-MD231

24-VDC Input/Transistor Output Units, 16 Inputs, 16 Outputs

Applicable Cable-side Connectors
Connection

Pins

Solder-type

Crimped

Pressure-welded

OMRON set

Fujitsu parts

C500-CE404

Socket: FCN-361J040-AU
Connector cover: FCN-360C040-J2

C500-CE241

Socket: FCN-361J024-AU
Connector cover: FCN-360C024-J2

C500-CE405

Socket: FCN-363J040
Connector cover: FCN-360C040-J2
Contacts: FCN-363J-AU

C500-CE242

Socket: FCN-363J024
Connector cover: FCN-360C024-J2
Contacts: FCN-363J-AU

C500-CE403

FCN-367J040-AU/F

C500-CE243

FCN-367J024-AU/F

CJ-series 32- and 64-point Basic I/O Units with MIL Connectors
Applicable Units
Model

Specifications

CJ1W-ID232

Pins

Input Unit, 24 VDC, 32 inputs

CJ1W-ID233
CJ1W-ID262

Input Unit, 24 VDC, 64 inputs

CJ1W-OD232

Transistor Output Unit with sourcing outputs, 32 outputs

CJ1W-OD262

Transistor Output Unit with sourcing outputs, 64 outputs

CJ1W-OD233

Transistor Output Unit with sinking outputs, 32 outputs

CJ1W-OD234
CJ1W-OD263

Transistor Output Unit with sinking outputs, 64 outputs

CJ1W-MD263

24-VDC Input/Transistor Output Units, 32 inputs, 32 outputs

CJ1W-MD563

TTL Input/TTL Output Units, 32 inputs, 32 outputs

CJ1W-MD232

24-VDC Input/Transistor Output Units, 16 inputs, 16 outputs

CJ1W-MD233

24-VDC Input/Transistor Output Units, 16 inputs, 16 outputs

Applicable Cable-side Connectors
Connection
Pressure-welded

5-30

Pins

OMRON set

DDK parts

XG4M-4030-T

FRC5-A040-3TOS

XG4M-2030-T

FRC5-A020-3TOS

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Wire Size
We recommend using cable with wire gauges of AWG 24 or AWG 28 (0.2 mm2 to 0.08 mm2). Use
cable with external wire diameters of 1.61 mm max.

z Wiring Procedure
The following wiring procedure is an example for Fujitsu-compatible connectors.

Check that each Unit is installed securely.
Precautions for Correct Use
Do not force the cables.

After wiring

Before wiring

ID261
I
II

0
8
0
8

ID261
1 2 3 4 5 6 7
9 10 11 12 13 14 15
1 2 3 4 5 6 7
9 10 11 12 13 14 15

I
II

0
8
0
8

1 2 3 4 5 6 7
9 10 11 12 13 14 15
1 2 3 4 5 6 7
9 10 11 12 13 14 15

5-3 Wiring

Do not remove the protective label from the top of the Unit until wiring has been completed. This
label prevents wire strands and other foreign matter from entering the Unit during wiring.
(Remove the label after wiring has been completed to allow air circulation needed for cooling.)

Remove label
after wiring

When solder-type connectors are being used, be sure not to accidentally short adjacent terminals. Cover the solder joint with heat-shrink tubing.
Solder-type connector

Heat-shrink tubing
Wire (0.2 to 0.13 mm2)

Precautions for Safe Use
Double-check to make sure that the Output Unit's power supply leads have not been reversed. If
the leads are reversed, the Unit's internal fuse will blow and the Unit will not operate.

CJ2 CPU Unit Hardware User’s Manual

5-31

5-3-3 Wiring Basic I/O Units with Connectors

5 Installation

Assemble the connector (purchased separately).
Small screws (3)

Connector cover

Small screws (2)
Socket
Connector lock
screws
Cable bracket

Nuts (3)

Nuts (2)

Insert the wired connector.

ID261
I
II

0
8
0
8

1 2 3 4 5 6 7
9 10 11 12 13 14 15
1 2 3 4 5 6 7
9 10 11 12 13 14 15

Connector
Basic I/O Unit
Basic I/O Unit

Connector

Remove the protective label after wiring has been completed to allow air circulation needed for
cooling.
After wiring

ID261

Connector lock screws

I
II

0
8
0
8

1 2 3 4 5 6 7
9 10 11 12 13 14 15
1 2 3 4 5 6 7
9 10 11 12 13 14 15

Remove label after wiring.

Tighten the connector lock screws to a torque of 0.2 N·m.

5-32

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-3-4

Connecting to Connector-Terminal Block Conversion Units or I/O
Relay Terminals
OMRON Connecting Cable can be used to connect Basic I/O Units with Connectors to OMRON Connector-Terminal Block Conversion Units or to OMRON I/O Relay Terminals. For details, refer to A-1-4
Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals.

z Connection Examples
Connector-Terminal Block Conversion Unit

I/O Relay Terminals
Basic I/O Unit

Basic I/O Unit

Connecting Cable

Connecting Cable
Connector-Terminal Block
Conversion Unit

I/O Relay Terminal

40 or 60 terminals

Connecting Pulse I/O Modules to External I/O Devices (CJ2M CPU
Unit Only)

• Use an OMRON Cable with Connectors to connect to a Connector-Terminal Block Conversion
Unit or Servo Relay Unit.
• Make a cable with an MIL Connector (including using Servo General-purpose Control Cables).

z Using OMRON Cables with Connectors to Connect to Connector-Terminal
Block Conversion Units or Servo Relay Units
For details on using OMRON Cables with Connectors to connect Pulse I/O Modules to OMRON
Connector-Terminal Block Conversion Units or Servo Relay Units, refer to the CJ2M CPU Unit Pulse
I/O Module User's Manual (Cat. No. W486).
Connection Example for Connector-Terminal
Block Conversion Unit

Connection Example for Servo Relay Unit
Pulse I/O Module

Pulse I/O Module

Pulse I/O Module to Servo Relay Unit
Connecting Cable
Servo Relay Unit to Servo Drive
Connecting Cable

Connecting Cable
Connector-Terminal Block
Conversion Unit

Servo Drive

Servo Relay Unit

z User-made Cables with Connectors
Applicable Pulse I/O Modules
Model

Specifications

Pins

CJ2M-MD211

Sinking outputs, MIL connector, 10 inputs, 6 outputs

CJ2M-MD212

Sourcing outputs, MIL connector, 10 inputs, 6 outputs

CJ2 CPU Unit Hardware User’s Manual

5-33

5
5-3-4 Connecting to Connector-Terminal Block
Conversion Units or I/O Relay Terminals

Depending on the connector, the following methods are used to connect these Pulse I/O Modules to
external I/O devices.

5-3 Wiring

5-3-5

5 Installation

Applicable Cable-side Connectors
Connection method
Pressure-welded

5-34

Pins
40

OMRON set
XG4M-4030-T

DDK Ltd.
FRC5-A040-3TOS

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-3-6

Connecting I/O Devices

Input Devices
Use the following information for reference when selecting or connecting input devices.

z DC Input Units
The following types of DC input devices can be connected.
Contact output
IN

DC Input Unit

COM

IN
Sensor
Power
Supply

5-3 Wiring

Two-wire DC output

DC Input Unit

COM

Output
7 mA

5-3-6 Connecting I/O Devices

NPN open-collector output
Sensor
Power
Supply
DC Input Unit

COM

0V
NPN current output
Current
regulator

DC Input Unit

Output

7 mA Sensor
Power
0 V Supply

COM

PNP current output
Sensor
Power
Supply
Output
7 mA
0V

DC Input Unit
IN
COM

Voltage output
COM
Output

IN
DC Input Unit

0 V Sensor
Power
Supply

• The circuit below should NOT be used for I/O devices having a voltage output.
Voltage output

Sensor
Power
Supply
Output

CJ2 CPU Unit Hardware User’s Manual

DC Input Unit
IN
COM

5-35

5 Installation

z AC Input Units
Contact output
IN
AC Input Unit
COM

AC Switching
IN
Proximity
switch
main
circuit

AC Input Unit
COM

Precautions for Safe Use
When using a reed switch as the input contact for an AC Input Unit, use a switch with an allowable current of 1 A or greater. If reed switches with smaller allowable currents are used, the contacts may fuse due to surge currents.

z Precautions when Connecting a Two-wire DC Sensor
When using a two-wire sensor with a 12-VDC or 24-VDC input device, check that the following conditions have been met. Failure to meet these conditions may result in operating errors.
• Relation between voltage when the PLC is ON and the sensor residual voltage:
VON ≤ VCC − VR
• Relation between voltage when the PLC is ON and sensor control output (load current):
IOUT (min) ≤ ION ≤ IOUT (max.)
ION = (VCC − VR − 1.5 [PLC internal residual voltage])/RIN
When ION is smaller than IOUT (min), connect a bleeder resistor R. The bleeder resistor constant
can be calculated as follows:
R ≤ (VCC − VR)/(IOUT (min.) − ION)
Power W ≥ (VCC − VR)2/R × 4 [allowable margin]
VCC: Power voltage
VR: Sensor output residual current
ION: PLC ON current
IOUT: Sensor control current (load current)
RIN: PLC input impedance

5-36

CJ2 CPU Unit Hardware User’s Manual

5 Installation

• Relation between current when the PLC is OFF and sensor leakage current:
IOFF ≥ Ileak
Connect a bleeder resistor if Ileak is greater than IOFF. Use the following equation to calculate the
bleeder resistance constant.
R ≤ (RIN × VOFF)/(Ileak × RIN − VOFF)
Power W ≥ (VCC − VR)2/R × 4 [allowable margin]

DC Input Unit
Two-wire sensor

R IN

VCC
VR: Sensor output residual current
IOUT: Sensor control current (load current)
Ileak: Sensor leakage current
R: Bleeder resistance

• Precautions on Sensor Surge Current
An incorrect input may occur if a sensor is turned ON after the PLC has started up to the point
where inputs are possible. Determine the time required for sensor operation to stabilize after the
sensor is turned ON and take appropriate measures, such as inserting into the program a timer
delay after turning ON the sensor.

In this example, the sensor's power supply voltage is used as the input to CIO 000000 and a 100-ms
timer delay (the time required for an OMRON Proximity Sensor to stabilize) is created in the program. After the Completion Flag for the timer turns ON, the sensor input on CIO 000001 will cause
output bit CIO 000100 to turn ON.
000000
TIM
0000
#0001
TIM0000 000001
000100

CJ2 CPU Unit Hardware User’s Manual

5-37

5
5-3-6 Wiring with Ethernet Cable (CJ2HCPU6@-EIP only)

z Example

5-3 Wiring

VCC: Power voltage
VON: PLC ON voltage
VOFF: PLC OFF voltage
ION: PLC ON current
IOFF: PLC OFF current
RIN: PLC input impedance

5 Installation

Output Wiring Precautions
z Output Short-circuit Protection
If a load connected to the output terminals is short-circuited, output components and the printed circuit boards may be damaged. To guard against this, incorporate a fuse in the external circuit. Use a
fuse with a capacity of about twice the rated output.

z Transistor Output Residual Voltage
A TTL circuit cannot be connected directly to a transistor output because of the transistor's residual
voltage. It is necessary to connect a pull-up resistor and a CMOS IC between the two.

z Output Surge Current
When connecting a transistor or triac output to an output device having a high surge current (such
as an incandescent lamp), steps must be taken to avoid damage to the transistor or triac. Use either
of the following methods to reduce the surge current.
Method 1
L

OUT
CS/CJ-series
PLC

R
COM

Add a resistor that draws about 1/3 of the current consumed by the bulb.
Method 2

R
OUT

CS/CJ-series
PLC
COM
Add a control resistor as shown in the following diagram.

5-38

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-3-7

Connecting through an Ethernet Cable (CJ2H-CPU6@-EIP and
CJ2M-CPU3@ Only)

Precautions
Observe the following precautions when using the built-in EtherNet/IP port on the CJ2H-CPU6@-EIP or
CJ2M-CPU3@.

z Basic Installation Precautions
• Take the greatest care when installing the Ethernet System, being sure to follow ISO 8802-3 specifications. You must obtain a copy of these specifications and be sure you understand them before
attempting to install an Ethernet System.
• Unless you are already experienced in installing communications systems, we strongly recommend that you employ a professional to install your system.

• When installing an EtherNet/IP network that combines an information system with the control system, and the communications load may be heavy due to tag data links, we recommend configuring the network so that the load does not affect communications. For example, install the tag data
links in a segment that is separate from the information network.

5-3 Wiring

• Do not install Ethernet equipment near sources of noise. If a noisy environment is unavoidable,
take adequate measures against noise interference, such as installing network components in
grounded metal cases or using optical cable in the system.

z Precautions on Laying Twisted-pair Cable

• Do not connect the connector shield at the CPU Unit.
• If a cable connects two Ethernet switches, connect the shields at only one end.
Ethernet switch
Connector

Ethernet switch

Connector

Connect shield.
Connector

Do not connect shield.

EIP
Unit
STP
STP

Connector

Power
Supply
Unit
GR
terminal

(Shield)
(Shield)

EIP
Unit

STP

Connector

Power
Supply
Unit
GR
terminal

(Shield)

• Press the cable connector in firmly until it locks into place at both the Ethernet switch and the CPU
Unit.
• Do not lay the twisted-pair cable together with high-voltage lines.
• Do not lay the twisted-pair cable near devices that generate noise.
• Do not lay the twisted-pair cable in locations subject to high temperatures or high humidity.
• Do not lay the twisted-pair cable in locations subject to excessive dirt and dust or to oil mist or
other contaminants.

CJ2 CPU Unit Hardware User’s Manual

5-39

5-3-7 Connecting through an Ethernet Cable
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)

• Noise resistance may be reduced by ground loops, which can occur due to improper shield connections and grounding. Ground the shield at one location, as shown in the following diagram.

5 Installation

Ethernet Connectors
The following standards and specifications apply to the connectors for the Ethernet twisted-pair cable.
• Electrical specifications: Conform to IEEE802.3 standards.
• Connector structure:

RJ45 8-pin Modular Connector (Conforms to ISO 8877)

Connector pin

Signal name

Abbr.

Signal direction

Transmission data +

TD+

Output

Transmission data −

TD−

Output

Reception data +

RD+

Input

Not used.

---

Not used.

---

Reception data −

RD−

Input

Not used.

---

Not used.

---

Hood

Frame ground

---

Connecting the Cable
Precautions for Correct Use
• Turn OFF the PLC's power supply before connecting or disconnecting twisted-pair cable.
• Allow enough space for the bending radius of the twisted-pair cable as shown in below.

35 mm

5-40

Lay the twisted-pair cable.

Connect the cable to the Ethernet switch. Be sure to press in the cable until it locks into place.

CJ2 CPU Unit Hardware User’s Manual

5 Installation

Connect the twisted-pair cable to the connector on the built-in EtherNet/IP port at the CPU Unit.
Be sure to press the connectors at both the Ethernet switch end and Ethernet end until they lock
into place.
RJ45 Modular Connector

Built-in EtherNet/IP port

5-3 Wiring

5
5-3-7 Connecting through an Ethernet Cable
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)

CJ2 CPU Unit Hardware User’s Manual

5-41

5 Installation

5-4

Control Panel Installation
To ensure system reliability and safety, the system must be designed and configured according to the
installation environment (temperature, humidity, vibration, shock, corrosive gases, overcurrent, noise,
etc.).

5-4-1

Temperature
Panels have been reduced in size due to space-saving and miniaturization in devices and systems, and
the temperature inside the panel may be at least 10 to 15°C higher than outside the panel. Implement
the following measures against overheating at the installation site and in the panel, and allow a sufficient margin for the temperature.

High Temperatures
Use the following cooling methods as required, taking into account the ambient temperature and the
amount of heating inside the panel.

z Natural Cooling
Natural cooling relies on natural ventilation through slits in the panel, rather than using cooling
devices such as fans or coolers. When using this method, observe the following points.
• Do not install the PLC at the top of the panel, where hot air tends to stagnate.
• To provide ventilation space above and below the PLC, leave sufficient distance from other
devices, wiring ducts, etc.
• Do not mount the Units in the wrong direction (e.g., vertically or upside down). Doing so may
cause abnormal heating in the PLC.
• Do not install heat-generating equipment, such as heaters, transformers, and devices with high
resistance, directly above the panel.
• Do not install the PLC in a location exposed to direct sunlight.

PLC

Natural Cooling

z Forced Ventilation (by Fan at Top of Panel)
Fan

PLC

Air filter

Forced Ventilation Method

5-42

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Forced Air Circulation (by Fan in Closed Panel)

Fan
PLC

PLC

Forced Air Circulation

Cooler

Control panel

5-4 Control Panel Installation

z Room Cooling (Cooling the Entire Room Where the Control Panel Is Located)

Room Cooling

Low Temperatures

CJ2 CPU Unit Hardware User’s Manual

5-43

5-4-1 Temperature

The PLC will not start normally if the temperature is below 0°C when the power is turned ON. Maintain
an air temperature of at least approximately 5°C inside the panel, by implementing measures such as
installing a low-capacity space heater in the panel. Alternatively, leave the PLC power ON to keep the
PLC warm.

5 Installation

5-4-2

Humidity
Rapid temperature changes can cause condensation to occur, resulting in malfunctioning due to shortcircuiting. When there is a possibility of this occurring, take measures against condensation, such as
leaving the PLC power ON at night or installing a heater in the control panel to keep it warmer.
Control panel
Moisture absorber
PLC

Power ON
Heater

Examples of Measures against Condensation

5-4-3

Vibration and Shock
The PLC is tested for conformity with the sine wave vibration test method (IEC 60068-2-6) and the
shock test method (IEC 60068-2-27) of the Environmental Testing for Electrotechnical Products. It is
designed so that malfunctioning will not occur within the specifications for vibration and shock. If, however, the PLC is to be used in a location in which it will be directly subjected to regular vibration or
shock, then implement the following countermeasures:
• Either separate the control panel from the source of the vibration or shock, or secure the PLC and the
panel with rubber padding to prevent vibration.
• Make the building or the floor vibration-resistant.
• To prevent shock during operation to devices in the panel, such as electromagnetic contactors,
secure either the source of the shock or the PLC with rubber padding.

5-4-4

Atmosphere
Using the PLC in any of the following locations can cause defective contact with connectors and corrosion of components. Implement countermeasures such as purging the air as required.
• In locations exposed to dust, dirt, salt, metal filings, soot, or organic solvents, use a panel with an airtight structure. Be careful of temperature increases inside the panel.
• In locations exposed to corrosive gas, purge the air inside the panel to clear the gas and then pressurize the inside of the panel to prevent gas from entering from outside.
• In locations where flammable gas is present, either use an explosion-protected construction or do not
use the PLC.

5-44

CJ2 CPU Unit Hardware User’s Manual

5 Installation

5-4-5

Electrical Environment
When installing or wiring devices, make sure that there will be no danger to people and that noise will
not interfere with electrical signals.

PLC Installation Location
Install the PLC as far away as possible from high-voltage (600 V or higher) and power devices to ensure
safe operation and maintenance.
Example of Recommended Equipment Arrangement

5-4 Control Panel Installation

PLC

Control panel

High-voltage
power panel

Example of Poor Equipment Arrangement

PLC

Control panel

5-4-5 Electrical Environment

High-voltage
power panel

Examples of Equipment Arrangement in Panel with High-voltage Devices

Arrangement of PLC and Units
Observe the following points.
• Place a Unit that does not generate much noise next to the CPU Unit, such as an Input Unit or Communications Unit.

DC I/O
device

AC Unit

DC Unit

Communications Unit

CPU

Power Supply Unit

• The coils and contacts in electromagnetic contactors and relays in an external circuit are sources of
noise. Locate them at least 100 mm away from the PLC.

AC I/O
device

Terminal block

Example of Arrangement in Panel

CJ2 CPU Unit Hardware User’s Manual

5-45

5 Installation

Wire Layout for the Power Supply System
Observe the following points when wiring the power supply system.
• Separate the PLC power supply from the I/O device power supply and install a noise filter near the
PLC power supply feed section.
• Use an isolating transformer to significantly reduce noise between the PLC and the ground. Install
the isolating transformer between the PLC power supply and the noise filter, and do not ground the
secondary coil of the transformer.
• Keep the wiring between the transformer and the PLC as short as possible, twist the wires well, and
keep the wiring separate from high-voltage and power lines.

Power circuits

Power supply for general operations circuits

Power supply for PLC input circuits

Power supply for PLC output circuits

Noise
filter

PLC power supply

Outlet (for peripheral devices)

Power Supply System Diagram

Wiring External I/O Signal Lines
Observe the following points when wiring external I/O signal lines.
• To absorb reverse electromotive force when an inductive load is connected to an output signal, connect a surge suppressor near the inductive load in an AC circuit, and connect a diode near the inductive load in a DC circuit.

Inductive
load

PLC
DC Input
Unit

Diode

Inductive
load

PLC
Output
Unit

Connect a diode in a DC circuit.

PLC
Output
Unit

Connect a surge suppressor in an AC circuit.

Input Signal Noise Countermeasures

Connect a diode in a DC circuit.

Output Signal Noise Countermeasures

• Never bundle output signal lines with high-voltage or power lines, and do not route them in close
proximity or parallel to such lines. If output signal lines must be routed in close proximity to such lines,
place them in separate ducts or conduits and be sure to ground the ducts or conduits.
I/O cables
I/O cables

Power lines

Suspended ducts

I/O cables

Floor ducts

Power lines

Conduit

I/O Cable Arrangement

• If the signal lines and power lines cannot be routed in separate ducts, use shielded cable. Connect
the shield to the ground terminal at the PLC, and leave it unconnected at the input device.
5-46

CJ2 CPU Unit Hardware User’s Manual

5 Installation

• Wire the lines so that common impedance does not occur. Such wiring will increase the number of
wires, so use common return circuits. Use thick wires with sufficient allowance for the return circuits,
and bundle them with lines of the same signal level.
• For long I/O lines, wire the input and output signal lines separately.
• Use twisted-pair wires for pilot lamps (and particularly lamps with filaments).
• Use countermeasures, such as CR surge absorbers and diodes, for input device and output load
device noise sources, as required.

External Wiring

z Wiring Routes
Each of the following combinations include different signal types, properties, or levels. They will
cause the signal-to-noise ratio to drop due to factors such as electrical induction. As a general rule
when wiring, either use separate cables or separate wiring routes for these items. Future maintenance operations and changes to the system will also be made easier by carefully organizing the
wiring from the start.
• Power lines and signal lines

5-4 Control Panel Installation

Wiring, and noise countermeasures in particular, are based on experience, and it is necessary to
closely manage wiring based on experience and information in the manuals.

• Input signals and output signals

• Analog signals and digital signals
• High-level signals and low-level signals

5-4-5 Electrical Environment

• Communications lines and power lines
• DC signals and AC signals
• High-frequency devices (such as Inverters) and signal lines (communications)

CJ2 CPU Unit Hardware User’s Manual

5-47

5 Installation

z Wiring Methods
Observe the following points when wiring power supply and signal cables.
• When routing signal cables with differing characteristics through the same duct, always keep them
separated.
• As much as possible, avoid routing multiple power supply lines through the same duct. If it cannot
be avoided, then construct a partition between them in the duct and ground the partition.
Partition

Signal
cables
(A)

Signal
cables (B)

Signal
cables
(C)

Power
supply
cables

Signal cables

(a)

(b)

Signal cables
Signal cables

Power supply cables

(c)

(d)

Partitioning Methods for Signal and Power Supply Cables

• To avoid overheating the conduits when using conduits for wiring, do not place wires for a single
circuit in separate conduits.
Power supply

Load

Incorrect
Power supply

Load

Correct
Power supply

Load

Correct

Parallel Wiring (Single Phase)

5-48

CJ2 CPU Unit Hardware User’s Manual

5 Installation

• Power cables and signal cables adversely affect each other. Do not wire them in parallel.
• Noise induction may occur if the PLC is installed in a panel that includes high-voltage devices.
Whenever possible, wire and install them separately. (Refer to PLC Installation Location on page
45.)
• Either install the PLC a minimum of 200 mm from high-voltage lines or power lines, or place the
high-voltage lines or power lines in metal tubing and completely ground the metal tubing to 100 Ω
or less.
Panel with power line
Metal tubing

Power line
Power line
200 mm

PLC
200 mm

Ground of 100 Ω or less

Example: Separating PLC from Power Lines

z Other Precautions
• Basic I/O Units have both plus and minus commons, so pay attention to the polarity when wiring.

• SYSMAC H-PCF Optical Fiber Cables Installation Guide (Cat. No. W156)
• Optical Ring Controller Link Units Operation Manual (Cat. No. W370)

CJ2 CPU Unit Hardware User’s Manual

5-49

5
5-4-5 Electrical Environment

• Optical fiber cable looks like ordinary communications cable or power cable, but internally it consists of fibers, tension members, other protective materials. It must be handled with care. In particular, optical fiber cable must be installed according to prescribed methods and standards. Do not
subject optical fiber cable to severe tensile shock, excessive bending, twisting, or excessive constriction. For details on wiring optical fiber cables, refer to the following manuals.

5-4 Control Panel Installation

PLC

5 Installation

5-4-6

Grounding
Grounding has the following two purposes.
• Protective Grounding
Protective grounding is done to ensure safety. It is intended to prevent electrical shock by grounding
the electrical potential that is generated by factors such as leakage, induction, or failure.
• Functional Grounding
Functional grounding is done to protect device and system functions, including prevention of noise
from external sources, or prevention of noise from devices or equipment that could have harmful
effects on other devices or equipment.
Grounding requirements sometimes depend on the situation, based on experimentation. It is important to sufficiently check the particular circumstances before grounding.

Grounding Methods and Precautions
z Principles of One-point Grounding
For devices to operate properly, the reference potential between the devices must be stabilized. Use
one-point grounding so that noise current does not flow to ground lines between the devices.

z Whenever possible, use an independent ground (with the ground pole
separated by a minimum of 10 m from any other ground pole).
• Ground to 100 Ω or less, and if possible use a separate ground from those of other devices. (Refer
to figure (a) in the diagram below.)
• If using an independent ground is not possible, then use a common ground as shown in figure (b).
Connect to the ground pole of the other device.
• Never connect to the same ground as a device that draws a large amount of power, such as a
motor or inverter. Ground the devices separately to avoid mutually adverse influences.
• To prevent electrical shock, do not connect to ground poles (especially steel frames) to which multiple devices are connected.
• Use a ground pole as close to the PLC as possible and keep the ground line as short as possible.
PLC

PLC
Other
device

Other
device

Ground of
100 Ω or less

Independent grounds:
Best

Common ground:
Acceptable

Common ground:
Incorrect

Grounding Methods

5-50

CJ2 CPU Unit Hardware User’s Manual

5 Installation

z Precautions when Grounding
• If the same ground is used for both the signal lines and the enclosure, isolate the channel base
(a grounded metal plate inside a control panel) with an insulating material

Independent ground

CS/CJ-series PLCs
have an isolated
(floating) mounting
structure to make it
more difficult to be
affected by noise from
an installation
environment, such as
a control panel.

Insulating material

Example: Insulating and Grounding an Enclosure

• To prevent influence from leakage current from other electrical devices, electrically isolate the
panel in which the PLC is housed from other devices.
• If high-frequency equipment is present, then ground not only the high-frequency equipment but
also the panel itself in which the PLC is housed.
• As shown in the following diagram, when using shielded cable for I/O wiring, connect the shield
near the PLC to the enclosure ground terminal. Follow the instructions in the Communications
Unit manual for preparing shielded communications cable.

5-4 Control Panel Installation

Channel base

PLC
Input
Common

Output
Common

5-4-6 Grounding

Shielded Cable Ground

z PLC Ground Terminals
The PLC has the following two ground terminals.
Protective ground terminal: Always connected to the PLC chassis to prevent electrical shock.
Functional ground terminal: Connected to a neutral point in the noise filter to provide a ground when
power supply noise causes malfunctioning.

When the functional ground terminal is correctly grounded, it is generally effective in suppressing
power supply common noise. Occasionally, however, grounding this terminal will result in picking up
more noise, so be careful when using it.

AC side

PLC side

PLC Ground Terminals

z Grounding for AC Power Supply Units
When wiring to an AC Power Supply Unit, if one power supply phase of the equipment is grounded,
always connect the grounded phase to the L2/N terminal.
L1
L2/N

CJ2 CPU Unit Hardware User’s Manual

5-51

5 Installation

5-52

CJ2 CPU Unit Hardware User’s Manual

Troubleshooting
This section describes how to troubleshoot problems that may occur with a CJ2 PLC.

6-1 CPU Unit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-1
6-1-2
6-1-3
6-1-4
6-1-5
6-1-6
6-1-7

Errors and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Detailed Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Error Log Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O Table Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2
6-2
6-3
6-3
6-5
6-6
6-7

6-2 Troubleshooting Built-in EtherNet/IP Port Errors
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) . . . . . . . . . . . . . . . . . . . . . . . 6-25
6-2-1
6-2-2

Checking Built-in EtherNet/IP Port Error Status . . . . . . . . . . . . . . . . . . . . . . 6-25
Checking Error Status at the EtherNet/IP Port Seven-segment Display . . . . 6-26

6-3 Non-CPU Unit Errors and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
6-3-1

CJ2 CPU Unit Hardware User’s Manual

Error Causes and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

6-1

6 Troubleshooting

6-1

CPU Unit Errors

6-1-1

Errors and Remedies
Use the following procedure when an error occurs.
Error occurs.

Check the indicators.

Identify the error.

Check the indicators on the front of the CPU Unit
and Power Supply Unit, or use the
CX-Programmer to read the error status.
Identify the error from the indicators
(refer to 6-1-6 Types of Errors) or use the
CX-Programmer to read the error status.

Implement
countermeasures.

Take measures to eliminate the error that occurred
and to prevent it from occurring again.
(Refer to 6-1-7 Handling Errors.)

End

6-1-2

Checking Errors
The type of error that occurred can be determined by checking the indicators on the front of the CPU
Unit or by using the CX-Programmer. For details on error types, refer to 6-1-6 Types of Errors.

Checking the Indicators
Indicators on front of
CPU Unit
RUN
ERR/ALM
INH
PRPHL
COMM
BKUP

RUN:

Lit green when the PLC is in RUN or MONITOR mode.

ERR/ALM:

Shows the results of self-diagnosis.
Flashing red: Non-fatal error
Lit red: Fatal error

INH:

Lit yellow when Output OFF Bit has been turned ON.

PRPHL:

Flashing yellow when the CPU Unit is communicating through
the peripheral (USB) port.

COMM*:

Flashing yellow when the CPU Unit is communicating through
the RS-232C (USB) port.

BKUP:

Flashing yellow when data is being backed up from RAM to
built-in flash memory.

* The CJ2M-CPU3@ does not have this indicator.

POWER:

Power Supply Unit

Lit when 5 V is output from the Power Supply Unit.

Power indicator

6-2

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

Checking Error Status with the CX-Programmer
Use the following procedure to read the error status.

1
2
3

Double-click Error Log in the project tree in the main window. The PLC Error Window will be displayed.
Click the Errors Tab. The current errors will be displayed on the Errors Tab Page.

6-1 CPU Unit Errors

6-1-3

Connect the CX-Programmer online.

Checking Detailed Status
You can check detailed error status using information registered in the Auxiliary Area. The following
error details are registered.
• Error Flags:

The Auxiliary Area contains flags that indicate the type of error. There are error
flags for various types of error.

• Error Code:

6-1-4

The error code assigned to the current error is stored in word A400 regardless of
the type of error. If two or more errors occur at the same time, the highest (most
serious) error code will be stored in A400.

Reading Error Log Information
If the error status could not be checked when the error occurred, it can be checked by reading error log
data. The following information is stored in the error log.
• Error code (This is the same error code as is stored in word A400.)
• Error information
• Time of occurrence

CJ2 CPU Unit Hardware User’s Manual

6-3

6-1-3 Checking Detailed Status

• Error Information: The Auxiliary Area contains words that provide detailed information on current
errors. Error information is provided for various types of error.

6 Troubleshooting

Error Log Information
A maximum of 20 error records will be stored in the error log. If more than 20 errors occur, the oldest
error record (in A100 to A104) will be deleted and the 19 records stored in A105 to A199 will be shifted
by one, with the newest record being stored in A195 to A199.
Error code

4102

Order of occurrence
Error Log Area

1
A100

00F7

Error code

A101

Error contents

A102
A103

Minute, second
Day, hour

A104

Year, month

A105

009D

Time of occurrence

Error code

A106

Error contents

A107
A108

Minute, second
Day, hour

A109

Year, month

Time of occurrence

A195

Error code

A196

Error contents

A197
A198

Minute, second
Day, hour

A199

Year, month

Time of occurrence

A300
Error log pointer

Checking Error Log Information
The following methods can be used to check error log information with the CX-Programmer.

z CX-Programmer PLC Error Window
Check the error log by clicking the Error Log Tab in the PLC Errors Window of the PLC.

The error information is displayed here.
The error code is displayed here.

The example above shows that unit number 17 has been duplicated for Special I/O Units.
• Error code 80E9: Unit number duplication error
• Error information: 80 “11”: 11 hex = 17 decimal
For details on error codes and error information, refer to A-3 Fatal and Non-fatal Error Details.

z Directly Monitoring the Area where Error Log Information is Stored

6-4

Connect the CX-Programmer online.

Read words A100 to A199.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

3
6-1-5

Check the error status from the registered data.

I/O Table Verification
When an I/O verification error or a CPU standby error occurs, the following procedure can be used to
verify the I/O tables to locate where the error occurred. With the CX-Programmer, use the following procedure.

Double-click I/O Tables in the project tree in the main window.
The I/O Table Window will be displayed.

Select Verify from the Options Menu in the I/O Table Window.
The I/O table verification results will be displayed.

6-1 CPU Unit Errors

6
6-1-5 I/O Table Verification

CJ2 CPU Unit Hardware User’s Manual

6-5

6 Troubleshooting

6-1-6

Types of Errors
The type of error that has occurred can be identified by checking the indicators on the front of the CPU
Unit and the Power Supply Unit, or by using the CX-Programmer to check the error status. The errors
detected by the CPU Unit are listed in the following table.
For details on errors that are not detected by the CPU Unit, refer to 6-3 Non-CPU Unit Errors and Remedies.

Error name

POWER

RUN

ERR/ALM

INH

PRPHL

COMM

Error code
(stored in
A400)

Operation status

Power supply error

OFF

---

Operation stops.

CPU Standby

OFF

---

Operation stops.

---

Operation stops.

OFF

---

Operation stops.

CPU reset
CPU error (WDT error)*1
USB port communications error

OFF

---

OFF

---

Operation continues.

RS-232C port communications
error

OFF

---

OFF

---

Operation continues.

OFF

---

0x809F

Operation stops.

Fatal errors*1*2

Cycle time exceeded error
I/O bus error

0x80C0 to
0x80C7,
0x80CE,
0x80CF

I/O setting error

0x80E0

Too many I/O points error

0x80E1

Unit number duplication
error

0x80E9

Rack number duplication
error

0x80EA

Program error

0x80F0

Memory error

0x80F1

Version error

0x80F2

Memory Card Transfer
Error

0x80F4

FALS (007) error

0xC101 to
0xC2FF

Non-fatal errors*2

Duplicated refreshing error

Flashing

---

0x008B

Basic I/O error

0x009A

PLC Setup error

0x009B

Option Board error

0x00D1

Backup memory error

0x00F1

Tag memory error*3

0x00F2

System work errors

0x00F3

Battery error

0x00F7

CPU Bus Unit error

0x0200 to
0x020F

Special I/O Unit error

0x0300 to
0x035F,
0x03FF

CPU Bus Unit setting error

0x0400 to
0x040F

FAL (006) error

0x4101 to
0x42FF

Special I/O Unit setting
error

0x0500 to
0x055F

Operation continues.

*1 The indicator status is the same for CPU errors and fatal errors, but they can be distinguished because a Programming
Device can be connected when a fatal error occurs, but not when a CPU error occurs.
*2 For details on fatal errors and non-fatal errors, refer to A-3 Fatal and Non-fatal Error Details.
*3 CJ2H-CPU6@-EIP only.
Note The indicator status shows the status of the errors that have occurred in RUN or MONITOR mode.

6-6

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

6-1-7

Handling Errors
This section describes the measures to take for the errors that most commonly occur. First check the
error status. Then, make a preliminary determination of the cause of the error, confirm the cause, correct the error, and take measures to ensure that it will not occur again. For all other errors, refer to A-3
Fatal and Non-fatal Error Details.

Power Supply Errors
A power supply error occurs when a voltage of 5 V is not output from the Power Supply Unit.
POWER
Not lit.

RUN
Not lit.

Suspected cause of
error

ERR/ALM
Not lit.

Error flag
None

Error information

Error code
None

Confirmation method

None

Remedy

Prevention of recurrence

Use a tester to measure the volt- Turn the power ON
age at the input terminals of the again.
Power Supply Unit.*1

Investigate the reason that
the power was turned
OFF.

Connection status of
power supply selector
terminals

• 100 VAC:
Use a tester check for shortcircuits.
• 200 VAC:
Check for disconnections.

Periodically (approximately once a year)
tighten the terminal connections.

The voltage is out of
the allowable range for
the power supply.

Use a tester to measure the volt- Correct the power supage at the input terminals to the ply system for the PLC.
Power Supply Unit.*1

Same as at the left.

Power Supply Unit failure

Replace the Power Supply Unit
and check operation. (Check
whether the POWER indicator is
lit.)

Replace the Power
Supply Unit.

Depends on the type of
error.

Failure at another Unit

Remove in order the Units
mounted in the Rack and check
the POWER indicator.

Replace the failed Unit. Depends on the type of
error.

Reconnect and secure
the terminal connections.

6
6-1-7 Handling Errors

*1 The following table shows the allowable power supply ranges for each Power Supply Unit model.
Model

Power supply voltage

Allowable power supply
voltage fluctuation

CJ1W-PA205R/PA202

100 to 240 VAC

85 to 264 VAC

CJ1W-PD025

24 VDC

19.2 to 28.8 VDC

CJ2 CPU Unit Hardware User’s Manual

6-1 CPU Unit Errors

Power is not being
input.

6-7

6 Troubleshooting

CPU Standby Errors
When a CJ-series PLC is turned ON, the CPU starts cyclic servicing and enters RUN mode only after
all Special I/O Units and CPU Bus Units have been detected. If the startup mode is RUN or MONITOR
mode, the CPU will remain on standby until all Units have been detected.
POWER
Lit.

RUN

ERR/ALM

Not lit.

Error flag
None

Error code
None

Error information
None

z Recovery Processing Flow
CPU standby

Check the location of
the error.

Use the I/O table verification procedure (refer to 6-1-5 I/O
Table Verification) to check the location where the error
occurred.

Check the
connection status.

Check the connections to the Special I/O Units and CPU Bus Units.

Replace the Unit.

Is the error cleared?

Replace the Unit, or remove the Unit and check
whether the error is cleared (to determine that the
Unit that was replaced or removed just before the
error was cleared was the problem).
No

Yes
Restart the System.

z Error Causes and Remedies
Suspected cause of
error

6-8

Confirmation method

Prevention of
recurrence

Remedy

Faulty connection at Unit
(at a connector)

Check the insertion at the
connector. Restart the Unit
and check whether the error
is cleared.

Tighten the screws.

Same as at the left.

Unit failure

Replace the Unit that is
causing the standby (the
undetected Unit). If the error
is not cleared, remove the
Units in order until the status
returns to normal.

• Replace the Special I/O Unit
or Interrupt Unit for which
“$” is displayed when the I/O
tables are read.
• Replace the failed Unit.

(Determined by the
cause of the failure.)

The remote I/O power
supply is OFF or there is
no terminator for SYSMAC
BUS.

Check whether the power is Turn ON the power or set the
turned ON. Check the termi- terminators. If the error is not
nator settings.
cleared, replace the Unit.

---

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

Additional Information
The CJ2 CPU Units support the following function.
• Startup Condition Setting
After the power supply is turned ON, it is possible to start operation of the CPU Unit in RUN
mode or MONITOR mode even if there is one or more Units that has not completed startup.
Select the Start running program when initializing Unit/Inner board recognition Check Box in
the PLC Setup. For details, refer to the CJ-series CJ2 CPU Unit Software User's Manual
(Cat. No. W473).

CPU Reset
The CPU Unit is being reset, and Programming Devices cannot be connected.
POWER

Not lit.

ERR/ALM
Not lit.

Error flag
None

Error code
None

Error information
None

z Error Causes and Remedies
Suspected cause of error
Power to an Expansion Rack is OFF.

Confirmation method
Use a tester to measure
the voltage at the input
terminals of the Power
Supply Unit.*1

The I/O Connecting Cable is incorrectly installed. Check the connections.

Turn ON the
power.

Reconnect
the cable.

Prevention of
recurrence
Investigate the
reason that the
power was OFF.

If the Cable is disconnected, check
for vibration and
shock.

*1 The following table shows the allowable power supply ranges for each Power Supply Unit.
Power supply voltage

Allowable power supply
voltage fluctuation

CJ1W-PA205R/PA202

100 to 240 VAC

85 to 264 VAC

CJ1W-PD025

24 VDC

19.2 to 28.8 VDC

Model

Precautions for Correct Use
Observe the following points when using Expansion Racks.
• Always confirm the safety of any related equipment before turning the power supply ON or
OFF.
• When the power supply is interrupted to an Expansion Rack, the CPU Unit will stop program
execution and the same operations as are performed when the power supply to the CPU Unit
is interrupted will be performed. For example, if the power OFF interrupt task is enabled, it will
be executed. If power is then restored to the Expansion Rack, the CPU Unit will perform startup processing. The same operational status as existed before the power interrupt will not necessarily be continued.

CJ2 CPU Unit Hardware User’s Manual

6-9

6-1-7 Handling Errors

• The IN-OUT connectors are reversed.
• The cable does not have good contact at the
connectors.
• Two or more I/O Control Units are mounted on
the CPU Rack, or an I/O Control Unit is
mounted to an Expansion Rack.

Remedy

6-1 CPU Unit Errors

Lit.

RUN

6 Troubleshooting

CPU Errors
CPU errors are error that occur in the CPU Unit itself. A CPU error occurs when the WDT (watchdog
timer) times out. Programming Devices cannot be connected when a CPU error occurs.
POWER
Lit.

RUN
Not lit.

ERR/ALM
Lit.

Error flag
None

Error code
None

Error information
None

z Error Causes and Remedies
Suspected cause of
error
Unit failure

Confirmation method
A CPU error has possibly occurred
in the following cases.

Remedy

Prevention of recurrence

Replace the CPU Unit.

Same as at the left.

• If the error is not cleared when the
CPU Unit is restarted after the
recovery measures.
• If the error occurs frequently
• If the condition improves when the
Unit is replaced.
A conductive object
has gotten inside.

Check for conductive objects.

Clean the inside of the
Unit with an air blower
or replace the CPU
Unit.

Do not do any metal
working in the vicinity of
the control panel. Close
the control panel.

Noise

When the CPU Unit is restarted
after the recovery measures, the
error will either be cleared or will
continue to occur. Check whether
errors become less frequent after
the Unit is replaced.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• The microcomputer
inside the CPU Unit
is malfunctioning.

• FG
• Power lines

Precautions for Correct Use
• Always confirm the safety of any related equipment before turning the power supply ON or
OFF.
• When power supply is interrupted to an Expansion Rack, the CPU Unit will stop program execution and the same operations as are performed when the power supply to the CPU Unit is
interrupted will be performed. For example, if the power OFF interrupt task is enabled, it will be
executed. If power is then restored to the Expansion Rack, the CPU Unit will perform startup
processing. The same operational status as existed before the power interrupt will not necessarily be continued.

6-10

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

Communications Error (Peripheral (USB) Port)
A communications error will occur if there is an error in communications between the peripheral (USB)
Port and a connected device.
POWER
Lit.

RUN
Lit.

ERR/ALM
Not lit.

PRPHL
Not lit.

COMM
Not lit.

Error flag
None

Error code

Error information

None

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

The communications
cable is disconnected.

Remedy

Perform a visual inspecReconnect the cables.
tion and pull on the cables.

Prevention of recurrence
During operation, confirm
that the connections are
secure. Check for vibration
or shock.

A communications error will occur if there is an error in communications between the serial (RS-232C)
port and a connected device.
POWER
Lit.

RUN
Lit.

ERR/ALM
Not lit.

PRPHL
Not lit.

COMM
Not lit.

Error flag
None

Error code

Error information

None

6-1 CPU Unit Errors

Communications Error (Serial Port (RS-232C))

z Error Causes and Remedies
Suspected cause of
error

Prevention of recurrence

Remedy

Communications settings are incorrect.

• Check whether the DIP
switch pin 5 setting and
and the serial port settings
in the PLC Setup are correct.
• If a host computer is connected, check the host
computer serial port settings and the program.

• Correctly set DIP switch
pin 5 and the serial port
settings in the PLC Setup.
• Correct the host computer
serial port settings and the
program.

Same as at the left.

A communications
cable is incorrectly
connected.

• Check the cable connections.

• Correct the cable connections.

Same as at the left.

Reconnect the cables.

During operation, confirm
that the connections are
secure. Check for effects
of vibration or shock.

A communications
Perform a visual inspection
cable is disconnected. and pull on the cables.

CJ2 CPU Unit Hardware User’s Manual

6
6-1-7 Handling Errors

Confirmation method

6-11

6 Troubleshooting

Cycle Time Exceeded Error (Fatal Error)
z Cycle Time Exceeded Error
A cycle time exceeded error will occur if the PLC cycle time exceeds the setting for Watch Cycle
Time in the PLC Setup.
POWER
Lit.

RUN
Not lit.

ERR/ALM
Lit.

Error flag
A401.08

Error code
809F

Error information
None

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

Prevention of recurrence

Remedy

An interrupt task with a
long processing time was
executed.

Check the Max. Interrupt
Task Processing Time
(A440)*

Divide the interrupt task
into sections.

Same as at the left.

An incorrect value (an
extremely large number)
was set for the number of
repeats of FOR(512).

Set up a trap in the ladder
program to monitor the
number of repeats.

Correct the ladder program.

Same as at the left.

* The maximum processing time for an interrupt task will not be stored in A440 if High-speed interrupt function is
enabled in the PLC Setup.

6-12

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

I/O Bus Error (Fatal Error)
An I/O bus error will occur if there is an error in a data transfer between the CPU Unit and a Unit connected in the Rack.
POWER
Lit.

RUN

ERR/ALM

Not lit.

Lit.

Error flag
A401.10

Error code
80C0 to 80C7
or 80CF

Error information
A404*1

*1 The numbers of the slot and Rack where the I/O bus error was detected are stored in word A404.
15

A404
The number of the slot where the error occurred in
binary. (If it cannot be determined, “0F” will be stored.)
The number of the Rack where the error occurred in
binary (If it cannot be determined, “0F” will be stored.)

6-1 CPU Unit Errors

z Recovery Processing Flow
I/O bus error occurs.

Check the error
status.

Check the error code and error information.

Restart the PLC

6-1-7 Handling Errors

Is the error cleared?

Turn the power OFF and back ON.

Yes
Check the I/O Connecting
Cable connections between
all Racks.
Check the Unit installation.

Restart the PLC.

Is the error cleared?
Yes
No
Replace the Unit or the I/O
Connecting Cable.

Restart the PLC.

Restart the System.

CJ2 CPU Unit Hardware User’s Manual

6-13

6 Troubleshooting

z Error Causes and Remedies
Suspected cause of
error

Prevention of recurrence

Remedy

The I/O Connecting Cable
is disconnected.

Perform a visual inspection and pull on the
Cables.

Reconnect the cables.

During operation, confirm
that the connections are
secure. Check for vibration
or shock.

Equipment failure

An I/O bus error has possibly occurred in the following cases.

Replace the equipment.

---

• CPU Unit
• I/O Connecting Cable
(damage to bus interface circuit)

• CPU Unit
• I/O Connecting Cable

• If the error is not cleared
when the CPU Unit is
restarted
• If the error occurs frequently
• If the condition improves
when the Unit is
replaced.

A conductive object has
gotten inside.

Check for conductive
objects.

Clean the inside of the
Unit with an air blower or
replace the CPU Unit.

Do not do any metal working in the vicinity of the
control panel. Close the
control panel.

Faulty connector contact
(A foreign object has gotten inside.)

Check for foreign objects
in the connector.

Replace the Unit or take
off the connector and
remove the foreign object.

Make sure that the operating environment is free of
dirt and dust.

Noise

When the CPU Unit is
restarted after the recovery measures, the error
will either be cleared or
will continue to occur.
Check whether errors
become less frequent
after the Unit is replaced.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• Data corruption in bus
signals
• Malfunctioning in bus
interface circuit

6-14

Confirmation method

• FG
• Power lines
• I/O connecting cable
(inductive noise)

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

I/O Setting Error (Fatal Error)
An I/O setting error will occur if the Units that are actually connected do not match the Unit in the registered I/O tables.
POWER
Lit.

RUN
Not lit.

ERR/ALM
Flashing.

Error flag
A401.10

Error code
80E0

Error information
---

z Recovery Processing Flow
I/O setting error
Check the location of
the error.

Use the I/O table verification procedure (refer to 6-1-5
I/O Table Verification) to check where the error
occurred.
Turn the power OFF and back ON.

Restart the PLC.

6-1 CPU Unit Errors

Is the error cleared?

No
Check the Unit
connections.

Yes

Replace the Unit
where the error
occurred.

Restart the PLC.

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

Remedy

Prevention of recurrence

Faulty connection at Unit
(at a connector)

Check the insertion at the
connector. Restart the
Unit and check whether
the error is cleared.

Tighten the screws.

Same as at the left.

Unit failure

If restarting the Unit does
not clear the error, check
whether the error is
cleared by replacing the
Unit.

Replace the applicable
Unit.

Same as at the left.

Noise

Restart the CPU Unit and
check whether the error
continues to occur.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• Data corruption in bus
signals

• FG
• Power lines

CJ2 CPU Unit Hardware User’s Manual

6-15

6-1-7 Handling Errors

Restart the System.

6 Troubleshooting

Memory Error (Fatal Error)
A memory error will occur if there is a memory error in the CPU Unit or if a checksum error is detected
(checksum checked by the PLC with each cycle). The details of the cause of the error will be stored in
the error information in the Auxiliary Area.
POWER
Lit.

RUN

ERR/ALM

Not lit.

Lit.

Error flag
A401.15

Error code
80F1

Error information
A403*1

*1 Individual bits in A403 indicate where the memory error occurred.

z Recovery Measures
Check the detailed error contents in the error information in the Auxiliary Area, and then implement
the following recovery measures. If these measures cannot solve the problem, there is a strong
probability that the Unit has failed, so replace the Unit.
Error information

Error contents

Recovery measures

A403.00: ON

A checksum error has occurred in the user
program memory.

Transfer the user program to the CPU Unit
again.

A403.04: ON

A checksum error has occurred in the PLC
Setup.

Transfer the PLC Setup to the CPU Unit
again.

A403.05: ON

A checksum error has occurred in the reg- Transfer the I/O tables to the CPU Unit
istered I/O table.
again.

A403.07: ON

A checksum error has occurred in the
routing tables.

Transfer the routing tables to the CPU Unit
again.

A403.08: ON

A checksum error has occurred in the
CPU Bus Unit setup.

Transfer the CPU Bus Unit setup again.

Additional Information
Checksums are used to detect illegal rewriting in a specific area of memory by calculating and
comparing sums written to memory in advance to sums during operation. When a checksum
error is detected by the CJ2 CPU Unit during operation, memory is automatically recovered by
automatically reading data from flash memory. If recovery is not possible, an error occurs and
operation stops.
Use any of the following methods to transfer the data again.
• Use the CX-Programmer to download data.
• Use the automatic transfer at startup function to download data saved on a Memory Card. For
details, refer to the CJ-series CJ2 CPU Unit Software User's Manual (Cat. No. W473).
• Use the simple backup function to download data saved on a Memory Card. For details, refer
to 8-3 Simple Backup.
The CJ2 CPU Unit has built-in flash memory for backup. When the CPU Unit is restarted, data is
transferred to memory for calculation and this sometimes enables an error to be cleared.

6-16

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

z Recovery Processing Flow
Memory error

Check the error
status.
Implement the
remedy.

Is the error cleared?

Yes

Replace the Unit.

Restart the System.

If the measures described above do not clear the error, take the measures shown in the following
table.
Suspected cause of
error
Unit failure
• Memory element failure
• Memory peripheral circuit failure

Confirmation method

Remedy

A memory error has prob- Replace the CPU Unit.
ably occurred in the following cases.

Prevention of recurrence
Determined by the cause
of the failure.

Check for conductive
objects.

Clean the inside of the
Unit with an air blower or
replace the CPU Unit.

Do not do any metal working in the vicinity of the
control panel. Close the
control panel.

Noise

When the CPU Unit is
restarted after the recovery measures, the error
will either be cleared or
will continue to occur.
Check whether errors
become less frequent
after the Unit is replaced.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• Data corruption in memory
• Microcomputer malfunctioning
• Memory write circuit
malfunctioning
Software error*1

None

• FG
• Power lines

None

*1 This refers to errors caused by data corruption. SRAM is used for the CPU Unit user memory. SRAM is
affected by cosmic rays (neutrons) and naturally occurring radiation, so data can become corrupted.

6-17

6-1-7 Handling Errors

• If the error is not cleared
when the CPU Unit is
restarted after the
recovery measures
• If the error occurs frequently
• If the condition improves
when the Unit is
replaced.

A conductive object has
gotten inside.

CJ2 CPU Unit Hardware User’s Manual

6-1 CPU Unit Errors

z Error Causes and Remedies

6 Troubleshooting

Basic I/O Error (Non-fatal Error)
A basic I/O error occurs when there is an error at a Basic I/O Unit.
POWER
Lit.

RUN

ERR/ALM

Lit.

Flashing.

Error flag
A402.12

Error code
009A

Error information
A408*1

*1 Error Information
15

A408
Number of slot where the Unit with the error is
mounted in binary.
Number of Rack where the Unit with the error is
mounted in binary.

z Recovery Processing Flow
Basic I/O error occurs.

Check the location of
the error.

Replace the Unit.

Check the error information (A408).

Check the cause of the error, and take
measures to prevent it from occurring again.

Restart the System.

z Error Causes and Remedies
Suspected cause of
error

6-18

Confirmation method

Prevention of recurrence

Remedy

A fuse is burned out.

Measure the voltage at the
power supply terminals.
Check whether 24 V is
being supplied. (Check
whether the problem is
solved by replacing the
fuse.)

Replace the fuse.

The external power supply
is OFF (disconnected).

Measure the voltage at the
power supply terminals.
Check whether 24 V is
being supplied.

Turn ON the power supply. Investigate the reason that
the power was turned
OFF.

Other errors specific to
Units

Refer to the manual for the
particular Unit.

Same as at the left.

Check the maximum
switching current.

Same as at the left.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

Option Board Errors
An Option Board error will occur if the Option Board is removed while the power is being supplied.
POWER
Lit.

RUN

ERR/ALM

Lit.

Flashing.

Error flag
A315.13

Error code
00D1

Error information
---

A402.00

z Recovery Processing Flow
Option Board error occurs.

Check the location of the error.

Restart the PLC.
6-1 CPU Unit Errors

Recovered?
No
Check the Unit connections.

Yes

Replace the Option Board.

Restart the PLC.

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

Remedy

Prevention of recurrence

The Option Board was
removed while the system
was operating.

Check the mating of the
Option Board connector.

Reconnect.

Option Board failure

If restarting does not clear
the error, check whether
the error is cleared by
replacing the Option
Board.

Replace the Option Board. Same as at the left.

CJ2 CPU Unit Hardware User’s Manual

Check for vibration and
shock.

6-19

6-1-7 Handling Errors

Restart the System.

6 Troubleshooting

Battery Error (Non-fatal Error)
A battery error occurs when the battery voltage drops.
POWER
Lit.

RUN

ERR/ALM

Lit.

Flashing.

Error flag
A402.04

Error information

Error code
00F7

---

z Recovery Processing Flow
Battery error occurs.
Check the battery
connections.
Normal?

Yes

No
Reconnect

Replace the battery.

Restart the System.

z Error Causes and Remedies
Suspected cause of
error

6-20

Confirmation method

Prevention of recurrence

Remedy

A connector is disconnected.

Check the connection at
the connector.

Reconnect the connector.

Check for vibration and
shock.

Battery voltage is low.

Check whether the error is
cleared by replacing the
battery.

Replace the battery.

Periodically replace the
battery.

For details, refer to 7-2
Replacing the Battery.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

CPU Bus Unit Error (Non-fatal Error)
A CPU Bus Unit error occurs when there is an error in the data conversion between the CPU Unit and a
CPU Bus Unit.
POWER
Lit.

RUN

ERR/ALM

Lit.

Flashing.

Error flag
A402.07

Error code
0200 to 020F

Error information
A417*

* The bit corresponding to the unit number where the error occurred turns ON. (Bits 00 to 15 correspond to unit
numbers 0 to F.)

z Recovery Processing Flow
CPU Bus Unit error
occurs.
Check the location where
the error occurred.

Use the I/O table verification procedure
(refer to 6-1-5 I/O Table Verification) to
check where the error occurred.

Is the error cleared?

6-1 CPU Unit Errors

Turn the power OFF and back ON.

Restart the PLC

Yes

Check the Unit
connections

Replace the Unit
where the error
occurred.

6-1-7 Handling Errors

Restart the PLC.

Restart the System.

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

Remedy

Prevention of recurrence

An error specific to the
Unit

Refer to the manual for the
particular Unit.

Same as at the left.

Faulty connection at Unit
(at a connector)

Check the insertion at the
connector. Restart the
Unit and check whether
the error is cleared.

Tighten the screws.

Check for vibration and
shock.

Unit failure

If restarting the Unit does
not clear the error, check
whether the error is
cleared by replacing the
Unit.

Replace the applicable
Unit.

Same as at the left.

Noise

Restart the CPU Unit and
check whether the error
occurs again.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• Data corruption in bus
signals

• FG
• Power lines

CJ2 CPU Unit Hardware User’s Manual

6-21

6 Troubleshooting

Special I/O Unit Error (Non-fatal Error)
A Special I/O Unit error occurs when there is an error in the data conversion between the CPU Unit and
a Special I/O Unit.
POWER
Lit.

RUN

ERR/ALM

Lit.

Flashing.

Error flag
A402.06

Error code
0300 to 035F
or 03FF

Error information
A418 to A423 *

* The bit corresponding to the unit number where the error occurred turns ON.

z Recovery Processing Flow
Special I/O Unit error
occurs.
Restart the Special I/O Unit.

Reset, or turn the power OFF and back ON.

Is the error cleared?
No
Yes

Check the Unit connections.

Replace the Special I/O Unit.

Restart the Special I/O Unit.

Restart the System.

z Error Causes and Remedies
Suspected cause of
error

Confirmation method

Prevention of recurrence

Remedy

An error specific to the
Unit

Refer to the manual for the
particular Unit.

Same as at the left.

Faulty connection at Unit
(at a connector)

Check the insertion at the
connector. Restart the
Unit and check whether
the error is cleared.

Tighten the screws.

Check for vibration and
shock.

Unit failure

If restarting the Unit does
not clear the error, check
whether the error is
cleared by replacing the
Unit.

Replace the applicable
Unit.

Same as at the left.

Noise

Restart the CPU Unit and
check whether the error
occurs again after this.

Take measures against
noise. (Investigate the
path of entry.)

Same as at the left.

• Data corruption in bus
signals

• FG
• Power lines

6-22

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

Special I/O Unit Setting Error (Non-fatal Error)
A Special I/O Unit setting error will occur if a Unit registered in the registered I/O tables does not agree
with the Unit actually connected in the PLC. A Special I/O Unit setting error will also occur if a Unit set
as a Synchronous Unit in the synchronous operation parameter settings is not actually connected in the
PLC or does not support synchronous unit operation.
POWER
Lit.

RUN
Lit.

ERR/ALM
Flashing.

Error flag
A402.02

Error code
0500 to
055F

Error information
A428 to A433*

* The bit corresponding to the Unit for which the error occurred will turn ON.

z Recovery Processing Flow
Special I/O Unit setting
error occurs.
6-1 CPU Unit Errors

Synchronous unit
operation being
used?

Yes
Check if error is caused by
synchronous unit operation
settings. (A428 to A433 will
tell you which Unit caused
the error.)

6
6-1-7 Handling Errors

Perform the recovery procedure.

Operation
recovered?

Yes
Check if error is caused by
registered I/O settings.
(A428 to A433 will tell you
which Unit caused the error.)

Perform the recovery procedure.

Restart the system.

CJ2 CPU Unit Hardware User’s Manual

6-23

6 Troubleshooting

z Error Causes and Remedies for Synchronous Unit Operation Settings
Suspected cause of
error

Confirmation method

Prevention of recurrence

Remedy

A Unit set in the synchronous unit operation settings does not support
synchronous unit operation.

Check the operation manual for the Unit.

Transfer the settings
again.

Same as at the left.

A Unit set in the synchronous unit operation settings does not exist in the
PLC.

Check the Units in the
PLC.

Transfer the settings
again.

Same as at the left.

A Unit set in the synchronous unit operation settings does not exist on the
CPU Rack (i.e., it is on an
Expansion Rack).

Check the Units in the
PLC.

Move the Synchronous
Unit to the CPU Rack.

Same as at the left.

If I/O tables have been
registered, change the
registered I/O tables.

z Error Causes and Remedies for Registered I/O Table Settings
Suspected cause of
error
The model of a CPU Bus
Unit in the registered I/O
tables is different from the
model the Unit actually
mounted in the PLC.

6-24

Confirmation method
Check the Units in the
PLC.

Prevention of recurrence

Remedy
Correct the I/O table settings.

Same as at the left.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

6-2

Checking Built-in EtherNet/IP Port Error Status
Built-in EtherNet/IP port errors can be checked on the built-in EtherNet/IP port seven-segment display
on the front of the CJ2H-CPU6@-EIP or CJ2M-CPU3@ CPU Unit.

Built-in EtherNet/IP port
seven-segment display

Precautions for Correct Use
• For details on the types of errors related to the built-in EtherNet/IP port, and measures for handling them, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat. No. W465).

6-2 Built-in EtherNet/IP Port Errors and Remedies (CJ2H-CPU6@-EIP Only)

6-2-1

Troubleshooting Built-in EtherNet/IP
Port Errors (CJ2H-CPU6@-EIP and
CJ2M-CPU3@ Only)

6
6-2-1 Checking Built-in EtherNet/IP Port Error Status

CJ2 CPU Unit Hardware User’s Manual

6-25

6 Troubleshooting

6-2-2

Checking Error Status at the EtherNet/IP Port Seven-segment
Display

Built-in EtherNet/IP port
seven-segment display

The seven-segment display alternately displays the built-in EtherNet/IP port node address and the
following error codes.

z Normal Operation
Indications
MS
Lit green

NS
Lit or flashing
green

Error

7-segment
Built-in EtherNet/IP port node
address

Normal

z Errors Related to CPU Unit Data Exchange
Indications
MS

Error

7-segment

Flashing red

Not lit

Duplicate unit number

Flashing red

Not lit

CPU Unit faulty

Lit red

Not lit

Built-in EtherNet/IP port faulty

Flashing red

Not lit

Node address setting error

Flashing red

Not lit

CPU Unit faulty

Flashing red

Not lit

I/O table not registered

Flashing red

---

Simple backup function restore error

Flashing red

---

I/O bus error

Flashing red

---

CPU Unit memory error

Flashing red

Not lit

CPU Unit event servicing timeout

Flashing red

---

Routing table error

Flashing red

---

I/O refresh error

Flashing red

---

CPU Unit service monitoring error

Flashing red

---

CPU Unit watchdog timer error

z Errors Related to the CPU Unit
Indications
MS

Error

7-segment

Flashing red

---

CPU Unit Fatal Error

---

Output OFF Error

z Errors Related to the Control Bits
Indications
MS
---

6-26

NS
---

Error

7-segment
C6

Multiple Switches ON

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

z Errors Related to the Tag Data Links
MS

6-2 Built-in EtherNet/IP Port Errors and Remedies (CJ2H-CPU6@-EIP Only)

Indications

Error

7-segment

---

Verification Error (target non-existent)

---

Connection Failed

---

Tag Data Link Error

z Errors Related to Memory Access
Indications
MS

Error

7-segment

Flashing red

---

Memory Access Error

Flashing red

---

Device Parameters Error

Flashing red

---

IP Advanced Settings Error

Flashing red

---

Ethernet Basic Settings Error

z Errors Related to the Network
Indications
MS

Error

7-segment

---

Ethernet Link Not Detected

---

Server Connection Error

---

Lit red

IP Address Duplication

Flashing red

---

Address mismatch

Flashing red

Not lit

Communications Controller Error

Flashing red

---

Node Address Setting Changed During Operation

6
6-2-2 Checking Error Status at the EtherNet/IP Port Seven-segment
Display

z Errors Related to Units
Indicator
MS
Lit red

NS
Not lit

CJ2 CPU Unit Hardware User’s Manual

Error

7-segment
---

CPU Bus Unit Error

6-27

6 Troubleshooting

6-3

Non-CPU Unit Errors and Remedies

6-3-1

Error Causes and Remedies

Input Units
No.
1

Symptom
Not all inputs turn ON or indicators are not lit.

Cause

Remedy

Power is not supplied to Input
Unit.

Supply the appropriate external
input power.

Supply voltage is low.

Adjust supply voltage to within
rated range.

Terminal block mounting screws
are loose.

Tighten screws.

Faulty contact of terminal block
connector.

Replace terminal block connector.

Not all inputs turn ON (indicator
lit).

Input circuit is faulty.

Replace Unit.

Not all inputs turn OFF.

Input circuit is faulty.

Replace Unit.

Specific bit does not turn ON.

Input device is faulty.

Replace input devices.

Input wiring disconnected.

Check input wiring

Terminal block screws are loose.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

Too short ON time of external
input.

Adjust input device.

Faulty input circuit

Replace Unit.

Input bit number is used for output instruction.

Correct program.

Input circuit is faulty.

Replace Unit.

Input bit number is used for output instruction.

Correct program.

External input voltage is low or
unstable.

Adjust external input voltage to
within rated range.

Malfunction due to noise.

Take protective measures
against noise, such as:

Specific bit does not turn OFF.

Input irregularly turns ON/OFF.

• Install surge suppressor.
• Install insulation transformer.
• Install shielded cables between
the Input Unit and the loads.

6-28

Terminal block screws are loose.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

No.
7

Symptom
Error occurs in units of 8 points
or 16 points, i.e., for the same
common.

Input indicator is not lit in normal
operation.

Cause

Remedy

Common terminal screws are
loose.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

Faulty data bus

Replace Unit.

Faulty CPU

Replace CPU.

Faulty indicator or indicator circuit.

Replace Unit.

No.
1

Symptom
Not all outputs turn ON.

Cause

Remedy

Load is not supplied with power.

Supply power.

Load voltage is low.

Adjust voltage to within rated
range.

Terminal block screws are loose.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

An overcurrent (possibly caused
by a short at the load) resulted in
a blown fuse in the Output Unit.
(Some Output Units provide an
indicator for blown fuses.)

Replace fuse.

Faulty I/O bus connector contact. Replace Unit.
Replace Unit.

If the INH indicator is lit, the Output OFF Bit (A500.15) is ON.

Turn A500.15 OFF.
Replace Unit.

Not all outputs turn OFF.

Output circuit is faulty.

Output of a specific bit number
does not turn ON or indicator is
not lit.

Output ON time too short
Correct program to increase the
because of a mistake in program- time that the output is ON.
ming.

Output of a specific bit number
does not turn ON (indicator lit).

Bit status controlled by multiple
instructions.

Correct program so that each
output bit is controlled by only
one instruction.

Faulty output circuit.

Replace Unit.

Faulty output device.

Replace output device.

Break in output wiring.

Check output wiring.

Loose terminal block screws.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

Faulty output bit on a Relay Output Unit.

Replace relay.

Faulty output circuit.

Replace Unit.

Output of a specific bit number
does not turn OFF (indicator is
not lit).

Faulty output bit (Relay Output
Units only)

Replace relay.

Bit does not turn OFF due to
leakage current or residual voltage.

Replace external load or add
dummy resistor.

Output of a specific bit number
does not turn OFF (indicator lit).

Bit status controlled by multiple
instructions.

Correct program.

Faulty output circuit.

Replace Unit.

CJ2 CPU Unit Hardware User’s Manual

6-29

6-3-1 Error Causes and Remedies

Output circuit is faulty.

6-3 Non-CPU Unit Errors and Remedies

Output Units

6 Troubleshooting

No.
7

Symptom
Output irregularly turns ON/OFF.

Cause

Remedy

Low or unstable load voltage.

Adjust load voltage to within
rated range.

Bit status controlled by multiple
instructions.

Correct program so that each
output bit is controlled by only
one instruction.

Malfunction due to noise.

Protective measures against
noise:
• Install surge suppressor.
• Install insulation transformer.
• Use shielded cables between
the Output Unit and the loads.

Error occurs in units of 8 points
or 16 points, i.e., for the same
common.

Terminal block screws are loose.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

Loose common terminal screw.

Tighten screws.

Faulty terminal block connector
contact.

Replace terminal block connector.

An overcurrent (possibly caused
by a short at the load) resulted in
a blown fuse in the Output Unit.

Replace fuse.

Faulty data bus.

Replace Unit.

Faulty CPU.

Replace CPU.

Output indicator is not lit (operation is normal).

Faulty indicator.

Replace Unit.

ERR indicator (load short-circuit
alarm) lights and outputs turn
OFF.

An external short-circuit or disconnection occurred.

Refer to A-6-1 Load Short-circuit
Protection and Line Disconnection Detection for CJ1W-OD202.

z Special I/O Units
Refer to the Operation Manual for the Special I/O Unit to troubleshoot any other errors.
No.
1

6-30

Symptom

Cause

Remedy

The ERH and RUN indicators on
the Special I/O Unit are lit.

Special I/O refreshing is not
being performed for the Unit from
the CPU Unit (CPU Unit monitoring error).

Change the bit corresponding to
the unit number to 0 to enable
cyclic refreshing, or make sure
that the Unit is refreshed from
the program using IORF or
FIORF at least once every 11 s.

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

CX-Programmer Connections
Use the following procedure if the CX-Programmer cannot be connected.

z Connecting via the Peripheral (USB) Port
The CX-Programmer
cannot connect.

Yes

Is the
CX-Programmer
network type set
to USB?

Insert the cable all the way in at
both the personal computer and at
the CPU Unit.

Can the
CX-Programmer be
connected online?

Yes

6-3 Non-CPU Unit Errors and Remedies

Is the USB cable
securely
connected?

End

Set the CX-Programmer network
type to USB.

Yes
No

Can the
CX-Programmer be
connected online?

Yes

Replace the USB cable.

6-3-1 Error Causes and Remedies

CJ2 CPU Unit Hardware User’s Manual

6-31

6 Troubleshooting

z Connection to the EtherNet/IP Port (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
The CX-Programmer
cannot connect.

Is the Ethernet cable
securely connected?

At the personal computer (or the
Ethernet switch) and the CPU Unit,
firmly insert the cable until the connector
locks. Confirm that the LINK indicator
lights at the personal computer (or
Ethernet switch) and that the 100M
(10M) indicator lights at the CPU Unit.

Use the ping command from the personal
computer to confirm that the communications
to the PLC have been established. For details,
refer to the EtherNet/IP Unit Operation Manual
(Cat. No. W465).

Yes

Is an Ethernet switch
used between the
personal computer
and the PLC?

Can the
CX-Programmer be
connected online?

Yes

End

If a personal computer is connected to
a PLC using Straight Cable (or Cross
Cable), it can occasionally be difficult to
make the connection. If this occurs, try
using an Ethernet switch between the
computer and PLC.

Yes

Use the ping command from the personal
computer to confirm that the communications
to the PLC is established. For details, refer to
the EtherNet/IP Unit Operation Manual (Cat.
No. W465).

Are unique IP
addresses used for the
personal computer and
the CPU Unit, and are
they set for the same
domain?

Yes

Can the
CX-Programmer
be connected
online?

Yes

Set the IP address for the personal
computer. Either use the default IP
address for the CPU Unit or else
connect the CX-Programmer and set
another IP address.

No
Use the ping command from the personal
computer to confirm that the communications
to the PLC has been established. For details,
refer to the EtherNet/IP Unit Operation Manual
(Cat. No. W465).

Is the
CX-Programmer
network type set to
EtherNet/IP?

Yes

Can the
CX-Programmer be
connected online?

Yes

Set the CX-Programmer network
type to EtherNet/IP.

No
No

Can the
CX-Programmer be
connected online?

Yes

Replace the Ethernet cable
and the Ethernet switch.

6-32

CJ2 CPU Unit Hardware User’s Manual

6 Troubleshooting

z Connecting via the Serial Port
The CX-Programmer
cannot connect.

Is the RS-232C
cable securely
connected?

Insert the cable all the way in at
both the personal computer and
at the CPU Unit.

Yes
No

Yes
End
6-3 Non-CPU Unit Errors and Remedies

Is pin 5 of the
CPU Unit DIP
switch turned
ON?

Can the
CX-Programmer be
connected online?

Set the CX-Programmer network
type to Toolbus.

Yes
Can the
CX-Programmer
be connected
online?

Yes

In the PLC Setup
in the CPU Unit, does the
serial port setting match the
CX-Programmer network type
setting?

Replace the RS-232C cable.

In the PLC Setup in the CPU Unit,
match the serial port setting with
the CX-Programmer network type
setting.

6
6-3-1 Error Causes and Remedies

Yes

CJ2 CPU Unit Hardware User’s Manual

6-33

6 Troubleshooting

6-34

CJ2 CPU Unit Hardware User’s Manual

Inspection and Maintenance
This section describes the inspection and maintenance that is required for CJ2 PLCs.

7-1 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7-1-1
7-1-2

Inspection Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Unit Replacement Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

7-2 Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7-2-1
7-2-2

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Operation When Battery Is Exhausted or Not Installed . . . . . . . . . . . . . . . . . . 7-8

7-3 Power Supply Unit Replacement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

CJ2 CPU Unit Hardware User’s Manual

7-1

7 Inspection and Maintenance

7-1

Inspections
Daily or periodic inspections are required in order to maintain the PLC's functions in peak operating
condition.

7-1-1

Inspection Points
Although the major components in CJ-series PLCs have an extremely long life time, they can deteriorate under improper environmental conditions. Periodic inspections are thus required to ensure that the
required conditions are being kept.
Inspection is recommended at least once every six months to a year, but more frequent inspections will
be necessary in adverse environments.
Take immediate steps to correct the situation if any of the conditions in the following table are not met.

Periodic Inspection Points
No.

Item

Inspection

Criteria

Action

Source Power
Supply

Check for voltage fluctuaThe voltage must be within
Use a voltage tester to check the
tions at the power supply ter- the allowable voltage fluctua- power supply at the terminals. Take
minals.
tion range.
necessary steps to bring voltage
fluctuations within limits.

I/O Power Supply

Check for voltage fluctuations at the I/O terminals.

Voltages must be within
specifications for each Unit.

Use a voltage tester to check the
power supply at the terminals. Take
necessary steps to bring voltage
fluctuations within limits.

Ambient environment

Check the ambient temperature. (Inside the control panel
if the PLC is in a control
panel.)

0 to 55°C

Use a thermometer to check the
temperature and ensure that the
ambient temperature remains
within the allowed range of 0 to
55°C.

Check the ambient humidity.
(Inside the control panel if
the PLC is in a control
panel.)

Relative humidity must be
10% to 90% with no condensation.

Use a hygrometer to check the
humidity and ensure that the ambient humidity remains between 10%
and 90%. Make sure that condensation does not occur due to rapid
changes in temperature.

Check that the PLC is not in
direct sunlight.

Not in direct sunlight

Protect the PLC if necessary.

Check for accumulation of
dirt, dust, salt, metal filings,
etc.

No accumulation

Clean and protect the PLC if necessary.

7-2

Check for water, oil, or chem- No spray on the PLC
ical sprays hitting the PLC.

Clean and protect the PLC if necessary.

Check for corrosive or flammable gases in the area of
the PLC.

No corrosive or flammable
gases

Check by smell or use a sensor.

Check the level of vibration
or shock.

Vibration and shock must be
within specifications.

Install cushioning or shock absorbing equipment if necessary.

Check for noise sources near
the PLC.

No significant noise sources

Either separate the PLC and noise
source or protect the PLC.

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

No.
4

Item
Installation and
wiring

User-serviceable
parts

Inspection

Criteria

Action

Check that each Unit is connected and locked to the
next Unit securely.

No looseness

Press the connectors together
completely and lock them with the
sliders.

Check that cable connectors
are fully inserted and locked.

No looseness

Correct any improperly installed
connectors.

Check for loose screws in
external wiring.

No looseness

Tighten loose screws with a Phillips-head screwdriver.

Check crimp connectors in
external wiring.

Adequate spacing between
connectors

Check visually and adjust if necessary.

Check for damaged external
wiring cables.

No damage

Check visually and replace cables
if necessary.

Check whether the battery
has reached its service life.

Service life expectancy is 5
years at 25°C, less at higher
temperatures.

Replace the battery when its service life has passed even if a battery error has not occurred.
(Battery life depends upon the
model, the percentage of time in
service, and ambient conditions.)

CJ1W-BAT01

(From 0.75 to 5 years
depending on model, power
supply rate, and ambient
temperature.)

Tools Required for Inspections
7-1 Inspections

z Required Tools
• Slotted and Phillips-head screwdrivers
• Voltage tester or digital voltmeter
• Industrial alcohol and clean cotton cloth

z Tools Required Occasionally

• Oscilloscope
• Thermometer and hygrometer (humidity meter)

7-1-1 Inspection Points

CJ2 CPU Unit Hardware User’s Manual

7-3

7 Inspection and Maintenance

7-1-2

Unit Replacement Precautions
Check the following after replacing any faulty Unit.
• Do not replace a Unit until the power is turned OFF.
• Check the new Unit to make sure that there are no errors.
• If a faulty Unit is being returned for repair, describe the problem in as much detail as possible,
enclose this description with the Unit, and return the Unit to your OMRON representative.
• For poor contact, take a clean cotton cloth, soak the cloth in industrial alcohol, and carefully wipe the
contacts clean. Be sure to remove any lint prior to remounting the Unit.
Precautions for Correct Use
• When replacing a CPU Unit, be sure that not only the user program but also all other data
required for operation is transferred to or set in the new CPU Unit before starting operation,
including DM Area and HR Area settings. If data area and other data are not correct for the
user program, unexpected accidents may occur.
• Be sure to include the routing tables, Controller Link Unit data link tables, network parameters,
and other CPU Bus Unit data, which are stored as parameters in the CPU Unit. Be sure to set
this data again after replacing the CPU Unit.
• Refer to the CPU Bus Unit and Special I/O Unit operation manuals for details on the data
required by each Unit.

Additional Information
The simple backup operation can be used to store the user program and all parameters for the
CJ2 CPU Unit, DeviceNet Units, Serial Communications Units, and other specific Units in a
Memory Card as backup files. A Memory Card and the simple backup operation can be used to
easily restore data after replacing any of these Units.
Refer to 8-3-6 Data Backed Up Using Simple Backup for details.

7-4

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

7-2

Replacing the Battery
The Battery in the CJ-series CPU Unit must be replaced periodically as preventative maintenance. (The
Battery is a backup power supply for the CPU Unit's internal clock and RAM). This section describes
how to replace the Battery.

7-2-1

Battery Replacement

Purpose of the Battery
The Battery maintains the CPU Unit internal clock and the I/O memory data held in RAM while the main
power supply is OFF. If the Battery is not installed or Battery voltage drops too low, the internal clock will
stop and the I/O memory data that is held will be lost when the main power supply goes OFF.

Battery Service Life and Replacement Period

The following table shows the approximate minimum lifetimes and typical lifetimes for the backup battery (total time with power not supplied).
Model
CJ2H-CPU6@(-EIP)
CJ2M-CPU@@

Approx. maximum
lifetime

Approx. minimum lifetime*1

5 years

1 year 2 months

Typical lifetime*1
5 years

*1 The minimum lifetime is the memory backup time at an ambient temperature of 55°C. The typical lifetime is the
memory backup time at an ambient temperature of 25°C.

5 yr

4 year 5 months

4 yr
3 year 7 months

CJ2H-CPU6@(-EIP)

3 yr
2 yr

CJ2M-CPU@@

1 year 2 months

1 yr

25°C

40°C

Ambient temperature
55°C

This graphic is for reference only.

CJ2 CPU Unit Hardware User’s Manual

7
7-2-1 Battery Replacement

Memory Backup Time

7-2 Replacing the Battery

At 25°C, the maximum service life for batteries is five years whether or not power is supplied to the CPU
Unit while the battery is installed. The battery's lifetime will be shorter when it is used at higher temperatures and when power is not supplied to the CPU Unit for long periods.

7-5

7 Inspection and Maintenance

Low Battery Indicators
If the PLC Setup has been set to detect a low-battery error, the ERR/ALM indicator on the front of the
CPU Unit will flash when the battery is nearly discharged.
RUN
ERR/ALM
INH
PRPHL
COMM
BKUP

If the Battery Error Flag (A402.04) is ON*1, first check whether the Battery is properly connected to the
CPU Unit. If the battery is properly connected, replace the battery as soon as possible.
Once a low-battery error has been detected, it will take 5 days (at an ambient temperature of 25°C*2)
before the battery fails assuming that power has been supplied at least once a day. Battery failure and
the resulting loss of data in RAM can be delayed by ensuring that the CPU Unit power is not turned
OFF until the battery has been replaced.
*1 The Battery Error Flag (A402.04) will turn ON only if the Detect Low Battery parameter in the PLC Setup has
been set to detect a low-battery error. If this setting has not been made, battery errors will not be detected.
*2 The battery will discharge faster at higher temperatures, e.g., 4 days at 40°C and 2 days at 55°C.

z Replacement Battery
Use the CJ1W-BAT01 Battery Set.
Precautions for Correct Use
Be sure to install a replacement battery within two years of the production date shown on the
battery's label.
Production Date
CJ1W-BAT01

08-06

Manufactured in June 2008.

Replacement Procedure
Use the following procedure to replace the battery when the previous battery has become completely
discharged.
Precautions for Safe Use
We recommend replacing the battery with the power OFF to prevent the CPU Unit's sensitive
internal components from being damaged by static electricity. The battery can be replaced without turning OFF the power supply. To do so, always touch a grounded piece of metal to discharge
static electricity from your body before starting the procedure.
After replacing the battery, connect a Programming Device and clear the battery error.

Turn OFF the power to the CPU Unit.
If the CPU Unit has not been ON, turn it ON for at least five minutes and then turn it OFF.

7-6

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

Additional Information
If power is not turned ON for at least five minutes before replacing the battery, the capacitor that
backs up memory when the battery is removed will not be fully charged and memory may be lost
before the new battery is inserted.

Open the compartment on the upper left of the CPU Unit and carefully draw out the battery.

• You must complete this procedure within five minutes at 25°C after turning OFF the power to
the CPU Unit to ensure memory backup. Data may be lost if more than five minutes is
required.
• Never short-circuit the battery terminals; never charge the battery; never disassemble the battery; and never heat or incinerate the battery. Doing any of these may cause the battery to
leak, burn, or rupturing resulting in injury, fire, and possible loss of life or property. Also, never
use a battery that has been dropped on the floor or otherwise subject to shock. It may leak.
• UL standards require that batteries be replaced by experienced technicians. Always place an
experienced technician in charge or battery replacement.

Additional Information
The battery error will be cleared automatically the next time the CPU Unit is turned ON after
replacing the Battery.

CJ2 CPU Unit Hardware User’s Manual

7-7

7
7-2-1 Battery Replacement

• Turn ON the power after replacing the battery for a CPU Unit that has been unused for a long
time. Leaving the CPU Unit unused again without turning ON the power even once after the
battery is replaced may result in a shorter battery life.

7-2 Replacing the Battery

Precautions for Safe Use

7 Inspection and Maintenance

7-2-2

Operation When Battery Is Exhausted or Not Installed
The CJ-series PLCs can operate even when the Battery is exhausted or not installed.

Continuing Operation
To have operation continue when the Battery is exhausted or not installed, set the parameter in the PLC
Setup so that Battery errors are not detected.

Saving Data
The user program and parameter area data are saved in flash memory even when the Battery is
exhausted or not installed. I/O memory (such as the CIO Area), however, cannot be saved.

Conditions for Operation
Operation is possible when the Battery is exhausted or not installed if the following two conditions both
apply.
• There is no need to save data in I/O memory.
• There is no need to use initial settings in the DM/EM Area, or the initial settings are made by the user
program.
Additional Information
You can use the function for automatic transfer from the Memory Card at startup to store data in
I/O memory and the DM/EM Area even when the Battery is exhausted or not installed.
The following table shows when the Battery is required according to the purpose of CPU Unit operation.
Saving I/O memory is required.

Saving to I/O
memory is not
required.

DM/EM Area initial values are
required at startup.

The Battery is required.
DM/EM Area initial values are
set from the Memory Card.
DM/EM Area initial values are
set from the user program.

DM/EM Area initial values are not required at startup.

Automatic transfer from the Memory Card at startup is set. (Pin 2 is
set to ON.)
Normal operation from flash
memory or operation using the
Memory Card is possible.

Restrictions
• The clock function cannot be used, so the values for the Calendar/Clock Area (A351 to A354) and the
Startup Time (A510 to A511) in the Auxiliary Area will be unstable. In addition, the times at which the
CPU Unit created files on the Memory Card will be unstable.
• The Total Power ON Time (A523), Power Interruption Time (A512 to A513), and Number of Power
Interruptions (A514) in the Auxiliary Area will all be all zeros at startup.
• Error log data will not be held in the Error Log Area (A100 to A199) in the Auxiliary Area at startup.
• Correct values may not be held in I/O memory (including the HR, DM, and EM Areas) at startup. In
the PLC Setup, set the IOM Hold Bit (A500.12) and the Forced Status Hold Bit (A500.13) to not be
held at startup.

7-8

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

• The value for the Output OFF Bit (A500.15) will become unstable. Moreover, when the Output OFF
Bit turns ON, the outputs of all Output Units will turn OFF. To prevent the outputs of all Output Units
from turning OFF at startup, take countermeasures such as writing the following program section into
the ladder program.
First Cycle Flag
(A200.11)

RSET
A500.15

• Bank 0 will be the EM current bank at startup.
• Files will not be held in the EM file memory (EM data converted to flash memory) and the file memory
function cannot be used. Make the EM file memory setting again in the PLC Setup, and format the
EM file memory.

Setup Method
The following flowchart shows the flow of setup operations for the CPU Unit.
Power ON

Is it necessary to hold
the values of I/O
memory data for the
next startup?

Yes

Which data is required?

CIO/W/TIM
CNT/H/DM/EM

7-2 Replacing the Battery

Operation with Battery
Normal Operation
(Memory Card Not Required)
PLC Setup:
Detect Low Battery
IOM Hold Bit: Hold
A500.12 (IOM Hold Bit): ON

CNT/HR/DM/EM

Normal Operation
(Memory Card Not Required)
PLC Setup: Detect Low Battery

7
Operation without Battery
7-2-2 Operation When Battery Is Exhausted or Not Installed

Are I/O memory
initial values
required for program
execution?

Normal Operation
(Memory Card Not Required, and
User Program and Parameter
Area Data Held in Flash Memory)
PLC Setup: Do Not Detect Low
Battery

Yes

Yes
Can the I/O
memory initial
values be set by
the program?

The initial values are set in
the user program.

Are the DM Area
settings (D20000 to
D32767) for Special I/O
Units and Inner Boards
the only initial values that
are required?

Automatic Transfer at Startup
(Memory Card Required)
Transferred files:
AUTOEXEC.OBJ,
AUTOEXEC.STD,
AUTOEXEC.IOM
PLC Setup: Do Not Detect Low
Battery

Yes

DM Area beginning with
D00000, or EM Area

Other than the above.

CJ2 CPU Unit Hardware User’s Manual

Automatic Transfer at Startup
(Memory Card Required)
Transferred files: AUTOEXEC.OBJ,
AUTOEXEC.STD,
ATEXECDM.IOM, etc.
PLC Setup: Do Not Detect Low
Battery

Operation is not possible without a Battery.

7-9

7 Inspection and Maintenance

7-3

Power Supply Unit Replacement
Time
Principle of Replacement Notification
The Power Supply Unit has a built-in electrolytic capacitor. The electrolytic capacitor is impregnated
with electrolytic solution that starts to penetrate the sealing rubber from the time of manufacture. As
time elapses, the internal electrolytic solution continues to evaporate, resulting in decreased electrostatic capacity and deterioration in other characteristics. Over time, the characteristic deterioration of
the electrolytic capacitor prevents the Power Supply Unit from being utilized to its full capacity. In particular, the speed at which the electrolytic capacitor deteriorates fluctuates greatly with the ambient temperature (generally, a temperature rise of 10°C will double the rate of a reaction, as stated by Arrhenius'
law).
The CJ1W-PA205C Power Supply Unit with Replacement Notification monitors the internal temperature
of the Power Supply Unit while the power is turned ON, and calculates the level of deterioration of the
electrolytic capacitor from the operating time and internal temperature. The replacement notification
function displays the approximate time until the Power Supply Unit will stop functioning at its full capacity due to the characteristic deterioration of the electrolytic capacitor, based on the calculated level of
deterioration. When 6 months are remaining until replacement is required, the alarm output will turn
OFF.
Note The replacement notification function provides an indication of when the deterioration of the electrolytic
capacitor will prevent the power supply functioning at its full capacity. It does not provide information on failures occurring due to other causes.

Power Supply Unit with Replacement Notification
Model

Specifications

CJ1W-PA205C

100 to 240 VAC, Output capacity: 5 A at 5 VDC, 0.8 A at 24 VDC, total of 30 W
With replacement notification

Power Supply Unit Replacement Notification Module
z CJ1W-PA205C
Replacement notification display (7-segment, red)
CJ1W-PA205C
POWER

POWER indicator (green)

TEST
ALARM OUTPUT
DC30V, 50mA
NORMAL:ON
ALARM OFF

7-10

Alarm output (replacement
notification output)
test switch
Alarm output (replacement
notification output)
wiring diagram

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

Function
z Replacement Notification Function Displays
The replacement notification of the Power Supply Unit is shown using three 7-segment display characters.
• At time of purchase “FUL” is displayed. The display changes to “HLF” as the electrolytic capacitor
deteriorates (“HLF” may not be displayed, depending on the operating environment).
• When the time until replacement is required drops below 2 years, the display will change corresponding to the operating time from “1.5” to “1.0” to “0.5” to “0.0”/”A02.” When the remaining service life reaches 6 months or less, the display will alternate between “0.0” and “A02” in 2-second
intervals.
Capacity at
time of
manufacture

Electrolytic
capacitor level

Replacement notification
display (7-Segment)

Alarm output
(replacement notification output)

2.0 yr

1.5 yr

1.0 yr

Output ON

0.5 yr
Output
OFF

0 yr Remaining
life span

The output turns OFF when the remaining
life span reaches 6 months, and the
following display is repeatedly alternated.

Note 1 The time remaining until replacement does not include periods when the power is turned OFF.

7-3 Power Supply Unit Replacement Time

Replacement
required

2 Until approximately one month of operating time has accumulated, the display will always be “ful” and the
alarm output will remain ON (conducting) due to the estimated deterioration speed.
3 The time remaining until replacement will vary the operating and storage conditions, so periodically check
the display.
4 Fluctuation in the time remaining until replacement may result in the alarm output repeatedly turning ON
and OFF.
5 The precision of the replacement notification function will be adversely affected by applications in which
the power is frequently turned ON and OFF.
6 Due to the service life of the electronic components, replace the Power Supply Unit approximately 15
years after purchase, even if the replacement notification display or output has not indicated that replacement is required.

z Alarm Output (Replacement Notification Output)
The output remains ON until the remaining service life drops below 6 months and then turns OFF.
Note The alarm output will also turn OFF under the following conditions.

• The AC input to the Power Supply Unit is turned OFF.
• An error is detected by the self-diagnostic function.
• The TEST switch is pressed for at least 3 seconds.

CJ2 CPU Unit Hardware User’s Manual

7-11

7 Inspection and Maintenance

Additional Information
Example of Using the Alarm Output:
Monitoring Power Supply Replacement Notification in the System (6 Months or Less Until
Replacement Is Required)
ON
Alarm output
OFF
Turns OFF when 6 months remains
Alarm output

TIM 000 5 s
Internal Flag

T000

The Flag is programmed to allow for the delay in the alarm output at system startup. The Flag
does not turn ON when the alarm output is ON (normal operation). When the alarm output turns
OFF (replacement required), the Flag turns ON, and the replacement notification can be monitored from the system.

z Maintenance Function Using the TEST Switch
• Press the TEST switch for at least 3 seconds to display “A02” and force the alarm output OFF.
Release the switch to return to normal operating status.
The TEST switch is used initially or periodically to check the connection status between the alarm
output and external devices.
• Press the TEST switch for less than 3 seconds to display the unit version information for the
Power Supply Unit.
Precautions for Correct Use
• Replace the Power Supply Unit within 6 months when the display on the front panel of the
Power Supply Unit alternates between 0.0 and A02 or the alarm output automatically turns
OFF.
• Maintain an ambient storage temperature of −20 to 30°C and humidity of 25% to 70% when
storing the product (with the power turned OFF) for longer than 3 months to keep the replacement notification function in optimum working condition. The replacement time is calculated
from when the power is turned ON only. The precision of the replacement period will decline if
the electrolytic capacitor deteriorates during storage.

Display and Alarm Output Operation
z Normal Display: Replacement Notification Display
When 6 months or less are remaining until replacement is required, the display will alternate
between “0.0” and “A02” (in 2 second intervals), and the alarm output will turn OFF.
Remaining service life:
1 year to 6 months

Remaining service life: 6 months max.
2s

Alarm output

7-12

OFF

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

z Operation When Turning ON the Power
The following initial display is shown when the power is turned ON, after which the replacement notification is displayed. The alarm output turns ON approximately 0.2 seconds after the power is turned
ON.
Power ON

Display start

Initial display (approx. 1.1 s)

0.3 s

0.1 s

0.3 s

Replacement
required display

Display
Alarm
output

OFF

1 s max.
0.2 s max.

When replacement is already required, the alarm display will follow the initial display. The alarm output will turn ON approximately 0.2 seconds after the power is turned ON, and then turn OFF after
approximately 5 seconds.
Initial display
(approx. 1.1 s)

Alarm
display

Alarm output OFF

Display
Alarm
output

OFF

5 s max.

1 s max.
0.2 s max.

z Operation at Power OFF
When the power is turned OFF, the display will turn OFF after the PLC operation stops. The alarm
output will turn OFF after the display turns OFF.
Power
PLC operation
interruption stopped
Replacement
notification display

Notification display

7-3 Power Supply Unit Replacement Time

Display start

Power ON

Alarm output
OFF

Display
Alarm
output

Approx. 70 ms*1

OFF

100 VAC: Approx. 2 s
200 VAC: Approx. 7 s
*1

*1 The values shown are reference values (calculated for a no-load status on the Power Supply Unit's output).

If replacement is already required, the display will turn OFF after the PLC operation stops. When the
display turns OFF, the alarm output will turn ON momentarily and then turn OFF again.
Power
interruption

PLC operation
stopped

Notification display OFF
+ alarm output ON
Alarm output
OFF

Alarm display
Display
Alarm
output

OFF

Approx. 70 ms*1

100 VAC: Approx. 2 s
200 VAC: Approx. 7 s
*1

*1 The values shown are reference values (calculated for a no-load status on the Power Supply Unit's output).

CJ2 CPU Unit Hardware User’s Manual

7-13

7 Inspection and Maintenance

z Operation When TEST Switch Is Pressed
The following operation will be performed when the TEST switch on the replacement notification
function module is pressed. When the switch is pressed for less than 3 seconds, the unit version will
be displayed 3 times at 0.5-second intervals. When the switch is pressed for at least 3 seconds, the
alarm output will momentarily turn OFF, and the alarm display A02 will be shown. The operation will
return to the normal display and output when the switch is released. Use the TEST switch to check
the connection between the replacement notification output and devices.
• Operation when TEST switch is pressed for less than 3 seconds.
TEST switch

ON
0.5 s

0.5 s

Alarm output

0.5 s

• Operation when TEST switch is pressed for less than 3 seconds.
3s
TEST switch

0.5 s

Alarm output

OFF

Precautions for Correct Use
Under normal application conditions, the replacement notification function will operate after several years or even tens of years. When using a Power Supply Unit for an extended period of time,
periodically check operation with the TEST switch as described above and be sure the alarm
output functions properly.

z Self-diagnostic Function
Error name

Display

Alarm output status

Error details (cause)

Recovery method

Unit overheated
error

OFF

Internal overheating has occurred in
the Power Supply Unit as a result of
usage under conditions that exceed
the specified values, insufficient ventilation, or incorrect installation.*1

Remove the cause of the overheating error.

Unit error

OFF

System error from external noise or
hardware malfunction.

Turn ON the input's power supply again. If the Unit does not
recover, the error may be
caused by a Unit malfunction.
Consult with your OMRON representative.

*1 If the error continues for 3 hours or longer, the replacement notification function will be disabled. Even if the cause of the
overheating is removed, the display will continue as “Hot,” and the notification output will remain OFF. In this state, the
internal parts may deteriorate even if the PLC operation is normal, so replace the Power Supply Unit.

7-14

CJ2 CPU Unit Hardware User’s Manual

7 Inspection and Maintenance

Comparison between the CJ1W-PA205C and CJ1W-PA205R
Item
RUN contact output

CJ1W-PA205C
Not supported

Terminal block arrangement

CJ1W-PA205R (for comparison)
Supported

CJ1W-PA205R

CJ1W-PA205C
100 to 240 VAC
INPUT

AC input

100 to 240 VAC
INPUT

AC input

L2/N

GR
NC

Unconnected
terminals

Located on the left side of the Unit.

RUN output
(RUN contact)

Located on the right side of the Unit.
PA205R

CJ1W-PA205C

POWER

AC100-240V
INPUT

Years

L1
L1

TEST

L2/N

ALARM
OUTPUT
DC30V,50mA
NORMAL:ON
ALARM :OFF

AC100-240V
INPUT
L2/N

NC
RUN
OUTPUT
AC240V
DC24V

Terminal block

Terminal block Alarm output terminals

POWER indicator

On replacement notification module

On hood of Power Supply Unit

Replacement notification

Supported
(7-segment display + transistor outputs)

Not supported

CJ2 CPU Unit Hardware User’s Manual

7-3 Power Supply Unit Replacement Time

Terminal block position

RUN
OUTPUT
240 VAC
24 VDC
2A RESISTIVE

7-15

7 Inspection and Maintenance

7-16

CJ2 CPU Unit Hardware User’s Manual

Backup Operations
This section describes operations used to back up and restore data.

8-1 Backing Up Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
8-2 Using a Computer to Back Up Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8-2-1
8-2-2

PLC Backup Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
PLC Backup Tool Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

8-3 Simple Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
8-3-1
8-3-2
8-3-3
8-3-4
8-3-5
8-3-6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Verifying Backup Operations with Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Related Auxiliary Bits/Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Time Required for Simple Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Data Backed Up Using Simple Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

CJ2 CPU Unit Hardware User’s Manual

8-1

8 Backup Operations

8-1

Backing Up Data
There are two methods for backing up PLC data.

Using a Computer to Back Up Data to the Computer
• Operation: PLC Backup Tool running on the personal computer
• Backup destination: Computer hard disk
PLC Backup Tool

CPU Unit

Backup

All PLC data

Using Front-panel Switches on the CPU Unit to Back Up Data to a
Memory Card
• Operation: DIP switch and Memory Card Power Switch
• Backup destination: A Memory Card inserted in the CPU Unit

Back up data by
pressing the Memory
Card Power Switch.
All PLC data

Memory Card

Backup

8-2

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

8-2
8-2-1

Using a Computer to Back Up Data
PLC Backup Tool
The PLC Backup Tool can be used to back up, compare, and restore data, such as programs and unit
parameters, of all the Units or of only specified Units in a PLC that is connected online.

Backup folder
Default name:
C\Backup\yymmdd_hhmmss

PLC Backup Tool

CJ2

CPU Unit + Configuration Units
8-2 Using a Computer to Back Up Data

Restore or Compare

(CPU Bus Units and Special I/O Units)

Back up

z Applications
The PLC Backup Tool can be used for the following applications.
• Backing up all of the data from the PLC
• Comparing all of the data in the PLC with the data backed up in the computer
• Transferring all of the data to a PLC that has the same system configuration as another PLC
• Transferring data to a Unit that has been replaced, e.g., when the Unit has failed

z Applicable Units
Applicable Unit
CPU Unit

Description
CS/CJ/CP-series PLCs, all models and all versions

8-2-1 PLC Backup Tool

Data in the following Units is not backed up:
• Screen data for an NSJ Controller
• SYSMAC SPU Unit data
• Customizable Counter Unit data
Special I/O Units and CPU
Bus Units

Refer to the list of backup Units in the help files for the PLC Backup Tool.

z Applicable Data
Applicable Unit

Description

CPU Unit

User program, symbols tables, rung comments, program index, parameters (PLC
Setup, registered I/O tables, routing tables, Ethernet settings, and all other data in
the initial setting areas), I/O memory, forced status (backup and comparison only),
and EM file memory data (backup only)

Special I/O Units and CPU
Bus Units

Parameter settings and data stored inside the Unit (e.g., programming created with
Support Software)

CJ2 CPU Unit Hardware User’s Manual

8-3

8 Backup Operations

z Restrictions
The following restrictions apply.
• Forced Status
Forced status cannot be restored. If you attempt to restore forced status, the address of the forceset/reset bits will be displayed in the log display area. Use the CX-Programmer or Switch Box to manually force-set/reset the displayed bits.
• Data Stored in EM File Memory (Part of the EM Area Converted to File Memory)
EM file memory cannot be compared or resorted.
EM file memory backups are saved in the CPU\EM_FILES Folder that will be created within the
backup file destination folder. Restore EM file memory manually by using the PLC Memory Card Window in the CX-Programmer to write the data to memory.
• Restrictions in Comparing and Restoring I/O Memory
The CIO Area and Auxiliary Area data in the I/O memory cannot be compared or restored.

8-2-2

PLC Backup Tool Operations
An overview of the PLC Backup Tool is provided below. For details on specific procedures and functions, refer to the CX-Programmer Operation Manual (Cat. No. W446).

z Starting the PLC Backup Tool
Either of the following methods can be used to start the PLC Backup Tool.
• Select PLC Backup Tool from the CX-Programmer Tools Menu.
• Select Programs − OMRON− CX-One − CX Programmer − PLC Backup Tool from the Windows
Start Menu.
The PLC Backup Tool Dialog Box will be displayed.

8-4

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

z Backing Up Data
The data in the connected PLC can be backed up to the computer as a batch. A folder named with the
date and time will be automatically created under the user-specified folder, and the backup files will be
created in that folder.

z Comparing Data
Data in backup files can be compared with data from other backup files or data from connected PLC.
The comparison results will be displayed.

8-2 Using a Computer to Back Up Data

All Units in the PLC are displayed here.
Individual Units can be selected for backup.

8
8-2-2 PLC Backup Tool Operations

Specify the source backup file on the
computer.

Specify the target PLC or backup file to compare.
PLC: The currently connected PLC will be
displayed as the target.
File: Specify another backup file on the computer
as the target.

Backup files can be restored after the comparison results have been displayed. Also, the comparison
results can be saved in a CSV file.

CJ2 CPU Unit Hardware User’s Manual

8-5

8 Backup Operations

z Restoring Data
PLC data can be restored to a previous state by transferring backup file data to a connected PLC.
Before the data is restored, a comparison will be made automatically with the applicable PLC and the
results will be displayed.

Check boxes will appear for Units to which data can be
restored.
Configuration: Indicates whether the configurations match between the
backup file and the PLC.

Before the data is restored, the contents of the data can be checked by starting the Support Software
for that Unit.
Precautions for Correct Use
The CPU Unit will be changed to PROGRAM mode before restoring the data. This will stop operation. Be sure it is safe to stop CPU Unit operation before restoring the data.

Precautions for Safe Use
• Sufficiently check the data that is selected for restoring before performing the next step. If the
correct data is not restored, unexpected operation may occur in the controlled system after the
data is restored.
• Some Special I/O Units and CPU Bus Units operate with parameters that are stored in the
CPU Unit. If one of these Units is selected for backup, restrictions will be displayed in the Comments Area of the Backup from PLC Dialog Box. Confirm the restrictions, and always select
the Special I/O Unit or CPU Bus Unit together with the CPU Unit when backing up or restoring
data. If the data from both Units is not backed up or restored together, unexpected operation
may occur in the controlled system.
• If there are any backup restrictions for the Units to which data is being restored, the restrictions will be displayed in the Comments Area of the Backup from PLC Dialog Box. Confirm the
restrictions, and always take the required measures. If required measures are not taken, unexpected operation may occur in the controlled system after the data is restored.
• Confirm that stopping PLC operation will not create any problems before restoring data during
PLC operation. If the PLC stops at an unanticipated time, unexpected operation may occur in
the controlled system.
• Always turn the power supply to the PLC OFF and then ON after restoring data. If the power
supply is not turned OFF and then ON, memory in the PLC may not be updated to the restored
data, which may cause unexpected operation of the controlled system.
• Forced status can be backed up, but it cannot be restored. If you restored data that contained
forced status, use the CX-Programmer after restoring the data to force-set or force-reset bits
as required. If required bits are not force-set or force-reset, differences in the forced status in
memory may cause unexpected operation of the controlled system.

8-6

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

8-3
8-3-1

Simple Backup
Overview
The simple backup operation can be used to back up all PLC data to a Memory Card, or to restore or
compare the data, by using a simple DIP switch setting and the Memory Card Power Supply Switch. No
Support Software is required.
Backing Up Data

1.
2.

Turn ON pin 7 on
the DIP switch.

Power Supply Unit

CPU Unit

Press the Memory Card
Power Supply Switch.

Memory Card
Power Supply
Switch

Memory Card

8-3 Simple Backup

All PLC data, including the following data.
Data in the CPU Unit:
User programs
Parameters
I/O memory
Symbol tables
Comment files
Program index file
Data in mounted Special I/O Units and
CPU Bus Units
Backup

Backup operation

DIP switch on front
of CPU Unit

Procedure

Pin 7
ON

Restoring data from
the Memory Card

Comparing data to
the Memory Card

OFF

CJ2 CPU Unit Hardware User’s Manual

Press the Memory Card Power
Supply Switch for three seconds.

The data can be backed up
regardless of the CPU Unit
operating mode.

Turn the PLC OFF and ON
again.
(Data restoration is given priority
over the automatic transfer at
startup.)

After the data has been
restored, the operating mode
will remain in PROGRAM mode
until the PLC power is turned
OFF.

Press the Memory Card Power
Supply Switch for three seconds.

The data can be compared
regardless of the CPU Unit
operating mode.

8-7

8-3-1 Overview

Backing up data to
the Memory Card

8 Backup Operations

8-3-2

Operating Procedures

Backing Up Data from the CPU Unit to the Memory Card
Pin 7: ON
Press the Memory
Card Power Supply
Switch for three
seconds.

Memory Card

Insert the Memory Card into the CPU Unit.
The MCPWR indicator will light and the BUSY indicator will flash (meaning the Memory Card is
being accessed) and then turn OFF.

2
3

Turn ON pin 7 on the CPU Unit's DIP switch.
Press the Memory Card Power Supply Switch for three seconds until the BUSY indicator lights,
and then release the switch.
The PLC will start backing up data to the Memory Card. The MCPWR indicator will flash once
and then light while the data is being written. At the same time the BUSY indicator will flash. The
MCPWR and BUSY indicators will both turn OFF when the operation is completed normally.

Turn OFF pin 7 on the CPU Unit's DIP switch.

Restoring Data from the Memory Card to the CPU Unit

Turn OFF the PLC power supply.

Insert the Memory Card containing the backup files into the CPU Unit.

Turn ON pin 7 on the CPU Unit's DIP switch.

Turn ON the PLC power supply.
The PLC will start restoring the data from the Memory Card. The MCPWR indicator will flash
once and then light while the data is being read. At the same time the BUSY indicator will flash.
The MCPWR and BUSY indicators will both turn OFF when the operation is completed normally.
If the MCPWR indicator flashes five times, or if only the BUSY signal turns OFF, it means that an
error has occurred. (Refer to 8-3-3 Verifying Backup Operations with Indicators.)

Turn OFF pin 7 on the CPU Unit's DIP switch.

Note 1 The backup function will override the automatic transfer at startup function, so the backup files will be read
to the CPU Unit when the PLC is turned ON even if pin 2 of the DIP switch is ON.
2 Data will not be read from the Memory Card to the CPU Unit if pin 1 of the DIP switch is ON (write-protecting program memory).

8-8

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

Additional Information
• When the backup files are read from the Memory Card by the backup function, the status of
I/O memory and force-set/force-reset bits will be cleared unless the necessary settings are
made in the Auxiliary Area and PLC Setup.
If the IOM Hold Bit (A500.12) is ON and the PLC Setup is set to maintain the IOM Hold Bit Status at Startup when the backup files are written, the status of I/O memory data will be maintained when data is read from the Memory Card.
If the Forced Status Hold Bit (A500.13) is ON and the PLC Setup is set to maintain the Forced
Status Hold Bit Status at Startup when the backup files are written, the status of force-set and
force-reset bits will be maintained when data is read from the Memory Card.
• After the simple backup operation has been used to restore data from the Memory Card to the
PLC, the operating mode will remain in PROGRAM mode and cannot be changed to MONITOR or RUN mode until the PLC power is turned OFF. After restoring the data, turn OFF the
power, change the setting of DIP switch pin 7, and then turn the power back ON.
• File backups may take from several seconds to several minutes. For information on execution
times refer to 8-3-5 Time Required for Simple Backup.

Comparing Data in the Memory Card and CPU Unit

Insert the Memory Card containing the backup files into the CPU Unit.
The MCPWR indicator will light and the BUSY indicator will flash and then turn OFF.

Turn OFF pin 7 on the CPU Unit's DIP switch.
Press the Memory Card Power Supply Switch for three seconds until the BUSY indicator lights,
and then release the switch.
The PLC will start comparing the data in the PLC and the data in the backup file on the Memory
Card. The MCPWR indicator will flash once and then light while the data is being written. At the
same time the BUSY indicator will flash.

Pin 7: OFF
Press the Memory
Card Power Supply
Switch for three
seconds.

Memory Card

Note If an error occurs during writing or comparison, the MCPWR indicator will flash. Press the power supply
switch to stop the flashing and to turn ON the MCPWR indicator.

CJ2 CPU Unit Hardware User’s Manual

8-9

8
8-3-2 Operating Procedures

The MCPWR and BUSY indicators will both turn OFF if the data matches. If the MCPWR and
BUSY indicators both flash, it means that the data does not match or that an error has occurred.
(Refer to 8-3-3 Verifying Backup Operations with Indicators.)

8-3 Simple Backup

8 Backup Operations

8-3-3

Verifying Backup Operations with Indicators
The status of the Memory Card Power (MCPWR) indicator shows whether a simple backup operation
has been completed normally or not.
MCPWR Indicator
OPEN

MCPWR
BUSY

PERIPHERAL

Backup operation

Normal completion*1
MCPWR status

Backing up data from
the CPU Unit to the
Memory Card

MCPWR

Lit

Error occurred
MCPWR status
MCPWR

The data was not backed up due to one of the following
errors, and no backup file was created.
• Insufficient Memory Card capacity

Remains lit while the
Memory Card Power
Switch is pressed.

MCPWR

Remains lit while
the Memory Card
Power Switch is
pressed.

• Memory error in CPU Unit
• I/O bus error
• Data was not read from the Unit to be backed up.

Flashes once.
MCPWR

8-10

Lit

Error

MCPWR

Lit while writing.

MCPWR

OFF after data is
written.

Remains
flashing.

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

Backup operation

Normal completion*1

Error occurred

MCPWR status
Restoring data from
the Memory Card to
the CPU Unit

MCPWR

Lit when power is
turned ON.

MCPWR status
MCPWR

Lit when power is turned
ON.

Lit while reading.

• Program in Memory Card exceeds CPU Unit capacity
• Required backup files do not exist in Memory Card.

Flashes once.

• Program can't be written because it is write-protected
(Pin 1 of the DIP switch is ON.)

MCPWR
MCPWR

Error
The data was not restored due to one of the following
causes.

Flashes five times.

• The EM file was not complete, i.e., a portion was missing.
• There are fewer CPU Unit EM banks than backup EM
files.

MCPWR

OFF after data is
read.

Goes OFF.

MCPWR

Lit when power is
turned ON.

The I/O tables are not correct (e.g., the same unit number
was set twice).

MCPWR

Flashes once.

MCPWR

Remains lit.
MCPWR

Same as for normal
completion.

• A Unit was added to the configuration since the data was
backed up.
• The unit number settings for Special I/O Units or CPU
Bus Units are not correct.

Special I/O or CPU
Bus Unit ERR indicator
H8

7-segment LED indicator

MCPWR

Same as for normal
completion.

A Unit was added to the configuration since the data was
backed up.

INEE Board
READY
indicator

8-3 Simple Backup

Displayed as “H8”

Flashing
Comparing data
between the CPU Unit
and the Memory Card

MCPWR

Lit

MCPWR

Lit

The following comparison errors can occur:
• Memory error in CPU Unit*2

Remains lit while the Memory
Card Power Switch is pressed.

MCPWR

Remains lit while
the Memory Card
Power Switch is
pressed.

• Comparison results (of backup files on Memory Card and
data in PLC) do not match.
• Required backup files do not exist in Memory Card.*2
• I/O bus error

Flashes once.
MCPWR

MCPWR

Lit while comparing.

Remains flashing.

OFF after data
is compared.

*1 When the backup operation is completed normally, power to the Memory Card will go OFF when the MCPWR indicator
goes OFF. If the Memory Card will be used again, press the Memory Card Power Switch to supply power and execute the
desired operation.
*2 The backup files for Units and Boards are also compared.

CJ2 CPU Unit Hardware User’s Manual

8-11

8-3-3 Verifying Backup Operations with
Indicators

• Incorrect I/O tables (e.g., the same unit number set twice)

8 Backup Operations

8-3-4

Related Auxiliary Bits/Words
Name
File Memory
Operation Flag

Address

Description

A343.13

ON when any of the following are being performed. OFF when execution has been completed.
•
•
•
•
•

Memory Card detection
CMND instruction executed for local CPU Unit
FREAD/FWRIT instructions
Program replacement via special control bits
Simple backup operation

Wiring data to or verifying the contents of the Memory Card is not possible while this flag is ON.
EM File Memory
Starting Bank

8-3-5

A344

When the CPU Unit starts reading from the Memory Card, it references
this value. If the maximum EM bank number of the BKUPEM@.IOM
files (maximum consecutive bank number counting from 0) matches the
maximum bank number of the CPU Unit, the EM area will be formatted
based on the value in this word. If the maximum EM bank numbers do
not match, the EM Area will revert to its unformatted condition.

Time Required for Simple Backup
The following tables list the benchmark execution times for the simple backup operation. The execution
time will depend on the Unit configuration, cycle time, and Memory Card. These times were measured
under the following conditions:
CPU Unit Model: CJ2H-CPU6@-EIP or CJ2M-CPU3@
Configuration: CPU Unit only
Operating mode: PROGRAM
Operating mode

Writing to Memory Card

Reading from Memory Card

User program: 120K steps, No network symbols (tags)

Approx. 7 s

Approx. 20 s

User program: 120K steps, 20,000 network symbols (tags)

Approx. 19 s

Approx. 68 s

Additional Information
The Units that are backed up for the simple backup operation are predetermined. You cannot
specify which Units are backed up and which are not.

8-3-6

Data Backed Up Using Simple Backup
The files and applicable data transferred between the Memory Card and CPU Unit using the simple
backup operation are listed below. The file name is fixed as BACKUP@@.

Program Files
Contents
• User program

Backup
Yes

Restore
Yes

Compare
Yes

File name
BACKUP

Extension
.OBJ

• Network symbols*
* CJ2H-CPU6@-EIP or CJ2M-CPU3@ only.
Program files that include network symbols cannot be transferred to the CJ2H-CPU6@ or CJ2M-CPU1@. A
Memory Card transfer error (fatal) will occur if an attempt is made to transfer such a file.

8-12

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

Symbol Tables, Comments, and Program Index Files
Contents

Backup

Symbol table files

Restore

Yes

Compare

Yes

File name

Extension

BKUPSYM

.SYM

Comment files

BKUPCMT

.CMT

Program index file

BKUPPRG

.IDX

Parameter Files
Contents
•
•
•
•
•
•

Backup

PLC Setup
PLC name
Registered I/O tables
Routing tables
CPU Bus Unit setup
Etc.

Restore

Yes

Compare

Yes

File name
BACKUP

Extension
.STD

Data
There are five types of data files, as shown below, when the simple backup operation is used for backing up data (creating files) on the Memory Card or for restoring or comparing data from the Memory
Card.
• BKUPIOR.IOR
• BACKUPDM.IOM
• BKUPEM@.IOM
• BKUPEF@.IOM
These files are used exclusively for the simple backup operation. With the exception of BKUPIOR.IOR,
they can all be manipulated from the CX-Programmer. (BKUPIOR.IOR files cannot be manipulated.)

I/O memory
Area

Backup

Addresses

Restore

Compare

File name

Extension

D00000 to D19999

Yes

BACKUP

.IOM

CIO Area

CIO 0000 to CIO 6143

Yes

--(See note 3.)

BAUPIOR

.IOR

Yes

--(See note 3.)

(Includes forced status.)
W000 to W511
(Includes forced status.)
Holding Area

H000 to H511

Yes

Auxiliary Area

A000 to A447, A10000
to A11135

Yes

---

A448 to A1472

Yes

Timer Completion
Flags and Timer
PVs

T0000 to T4095

Yes

--(See note 3.)

Counter Completion Flags and
Counter PVs

C0000 to C4095

Yes

CJ2 CPU Unit Hardware User’s Manual

8-3-6 Data Backed Up Using Simple Backup

DM Area

Work Area

8-3 Simple Backup

• BACKUP.IOM

8-13

8 Backup Operations

I/O memory
Area

Backup

Addresses

Restore

Compare

File name

Extension

DM Area

D00000 to D19999

Yes

BACKUPDM

.IOM

EM Area (See notes
1 and 2.)

E@_0 to E@_32767
(@: Bank No. 0 to 18
hex. The maximum
bank number depends
on the CPU Unit
model.)

Yes

BKUPEM@

.IOM

EM Area (forced
status) (See note 4.)

When bits are forceset/reset

Yes

BKUPEF@

.IOM

Note 1 If the number of banks in the EM data on the Memory Card is less than the number of EM banks in the
CPU Unit where the data is to be restored (e.g., if data backed up by the CJ2H-CPU64-EIP is to be
restored at the CJ2H-CPU68-EIP), the amount of EM data on the Memory Card will be restored. On the
other hand, if the number of banks in the EM data on the Memory Card is greater than the number of EM
banks in the CPU Unit where the data is to be restored (e.g., if data backed up by the CJ2H-CPU68-EIP is
to be restored at the CJ2H-CPU64-EIP), it will not be possible to restore the data.
2 When the EM file memory function is used, the EM file memory will be restored only if the backup data is
restored to a CPU Unit of the same model. If it is restored to a CPU Unit of a different model, the data will
not function as EM file memory.
3 The BKUPIOR.IOR file will be cleared when data is restored from the Memory Card at startup. If, however,
the IOM Hold Bit (A500.12) is ON and the IOM Hold Bit Startup Hold Setting in the PLC Setup is set to
hold the setting of the IOM Hold Bit, the CIO and Work Area data and Timer Completion Flags and PVs will
be held without being cleared from the Memory Card at startup.
4 If the Forced Status Hold Bit (A500.13) is ON and the Forced Status Hold Bit Startup Hold Setting in the
PLC Setup is set to hold the setting of the Forced Status Hold Bit, the forced status will be held without
being cleared when restored from the Memory Card at startup, to a CPU Unit of the same model. If the
data is restored to a CPU Unit of a different model, the status will not be held.

Unit Backup Data
When CPU Bus or Special I/O Units that support the simple backup function are connected to the CPU
Unit, the data in the CPU Bus or Special I/O Units will also be backed up by the simple backup operation. Data in the CPU Bus and Special I/O Units is backed up separately for each Unit.
Contents

Backup

Data in Unit with unit address @@ (The
contents depend on the Unit.)

Yes

Restore
Yes

Compare
Yes

File name

Extension

BACKUP@@ .PRM

Note If the file does not exist when restoring data from the Memory Card to I/O memory, an error will not occur at
the CPU Unit but the data will not be restored to the CPU Bus or Special I/O Unit and an error will occur at
the CPU Bus or Special I/O Unit. For details on errors that occur at a CPU Bus or Special I/O Unit, refer to
the operation manual for the specific Unit.

Data in individual Units is saved to the Memory Card under the following file names.
File name: BACKUP

.PRM

Unit address of Unit/Board (hex)
Note The unit address is determined as follows:
• Built-in EtherNet/IP (CJ2H-CPU6@-EIP or CJ2M-CPU3@) or CPU Bus Unit: Unit number + 10 hex
• Special I/O Unit: Unit number + 20 hex

8-14

CJ2 CPU Unit Hardware User’s Manual

8 Backup Operations

In order for data in a Unit to be backed up, that Unit must support the simple backup function. Refer to
the operation manual for the specific Unit to check whether this function is supported.
Applicable Units
Serial Communications Units

Model numbers
CJ1WSCU21/22/32/41/42

Data backed up for simple backup

Data capacity used
in Memory Card
129 Kbytes

CJ1WSCU21/31/41-V1

Protocol macro data (Including both standard system protocols and user-defined
protocols from the flash memory in the
Unit or Board)

FL-net Units

CJ1W-FLN22

Data link tables

1.3 Kbytes

DeviceNet Units

CJ1W-DRM21

Device parameters (all data in EEPROM in
the Unit)

7 Kbytes

(Although this is the same data as is
backed up from the Memory Card backup
function supported by the Unit or the
DeviceNet Configuration (Ver. 2.@), there
is no file compatibility.)
CompoNet Units

CJ1W-CRM21

•
•
•
•

Motion Control Units

CJ1W-MCH71

• Positioning data
• System parameters
• G-language programming

8,192 Kbytes

Position Control
Units

CJ1W-NCF71(-MA)

• Common parameters
• Individual axis parameters

64 Kbytes

CJ1WNC113/133/213/233/
413/433

•
•
•
•
•
•

Axis parameters
Sequence data
Speed data
Acceleration/deceleration time data
Dual timer data
Zone data

7 Kbytes

CJ1WNC214/234/414/434

•
•
•
•
•

Common parameters
Axis parameters
Memory operation parameters
Memory operation data
Memory operation conditions data

220 Kbytes

CJ1WNC281/481/881/F81/
482/882

•
•
•
•
•
•

Common parameters
Axis parameters
Memory operation parameters
Memory operation data
Memory operation conditions data
Communications parameters

2,560 Kbytes

CJ1W-EIP21

• Unit settings
• Tag data link settings

8
8-3-6 Data Backed Up Using Simple Backup

CJ2 CPU Unit Hardware User’s Manual

3.5 Kbytes

8-3 Simple Backup

EtherNet/IP Unit

Registration tables
Software settings
Network parameters
Slave parameters

459 Kbytes

8-15

8 Backup Operations

Precautions for Correct Use
When using a simple backup file to restore data, use a CPU Unit of the same model as the
backup source. If a CPU Unit of a different model is used, the following operations will result.
• If the number of EM banks for the simple backup file is greater than that of the CPU Unit where
the data is to be restored, the data will not be restored.
• If the number of EM banks for the simple backup file is less than that of the CPU Unit where
the data is to be restored, the data in the EM bank areas in the simple backup file will be
restored, but forced status will not be restored. In addition, EM banks that are not in the simple
backup file will retain their values from before the restoration.

8-16

CJ2 CPU Unit Hardware User’s Manual

pp
Appendices
The appendices provide Unit specifications, Unit dimensions, details on fatal and nonfatal errors, information on connecting to serial ports on the CPU Unit, the procedure
for installing the USB driver on a personal computer, and information on load short-circuit protection and line disconnection detection.

A-1 Specifications of Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-1-1
A-1-2
A-1-3
A-1-4

Overview of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Precautions on Contact Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-57
Connecting Connector-Terminal Block Conversion Units and
I/O Relay Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-59

A-2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-94
CJ2H CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-94
CJ2M CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-95
Power Supply Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-96
Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-98
I/O Control Unit and I/O Interface Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-101
I/O Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-101
Pulse I/O Modules (CJ2M CPU Unit Only) . . . . . . . . . . . . . . . . . . . . . . . . . A-101
Serial Option Boards (CJ2M-CPU3@ Only) . . . . . . . . . . . . . . . . . . . . . . . . . A-102

A-3 Fatal and Non-fatal Error Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-103
A-3-1
A-3-2

Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-103
Non-fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-108

A-4 Connecting to a Serial Port on the CPU Unit . . . . . . . . . . . . . . . . . . . . . . A-111
A-4-1
A-4-2
A-4-3

Serial Port Interface Types and Specifications . . . . . . . . . . . . . . . . . . . . . . A-111
Connection Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-117
Applicable Connectors and Recommended Cables . . . . . . . . . . . . . . . . . . A-132

A-5 Installing the USB Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-139
A-6 Load Short-circuit Protection and Line Disconnection Detection for
Basic I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-149
A-6-1
A-6-2

Load Short-circuit Protection and Line Disconnection Detection for
CJ1W-OD202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-149
Load Short-circuit Protection for CJ1W-OD204/OD212/OD232/MD232 . . . A-151

A-7 Relay Output Noise Reduction Methods . . . . . . . . . . . . . . . . . . . . . . . . . A-153
A-8 Functions Supported for Unit Versions . . . . . . . . . . . . . . . . . . . . . . . . . . A-155

CJ2 CPU Unit Hardware User’s Manual

A-1

App

A-2-1
A-2-2
A-2-3
A-2-4
A-2-5
A-2-6
A-2-7
A-2-8

Appendices

A-1

Specifications of Basic I/O Units

A-1-1

Overview of Units

Basic I/O Units
z Basic Input Units
Type of Unit
Basic Input
Units

Name
DC Input Units

Specifications

Model

Terminal block, 12 to 24 VDC

8 inputs

CJ1W-ID201

Terminal block, 24 VDC,

16 inputs

CJ1W-ID211

Fujitsu-compatible connector, 24 VDC 32 inputs
MIL connector, 24 VDC

32 inputs

Page
*1

A-5
A-6

CJ1W-ID212

A-7

CJ1W-ID231

A-8

CJ1W-ID232

A-9

CJ1W-ID233

A-10

Fujitsu-compatible connector, 24 VDC 64 inputs

CJ1W-ID261

A-12

MIL connector, 24 VDC

64 inputs

CJ1W-ID262

A-13

AC Input Units

Terminal block, 200 to 240 VAC

8 inputs

CJ1W-IA201*1

A-15

Terminal block, 100 to 120 VAC

16 inputs

CJ1W-IA111

A-16

Interrupt Input Unit

Terminal block, 24 VDC

16 inputs

CJ1W-INT01

A-17

Quick-response Input Unit

Terminal block, 24 VDC

16 inputs

CJ1W-IDP01

A-18

*1 Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

A-2

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Basic Output Units
Type of Unit
Basic Output Units

Name
Relay Output Units

Triac Output Unit
Transistor Output Units

Sinking
outputs

Sourcing outputs

Specifications

Model

Page
A-20

Terminal block, 250 VAC/24 VDC, 2 A,
8 independent contacts

8 outputs

CJ1W-OC201

Terminal block, 250 VAC/24 VDC, 2 A

16 outputs

CJ1W-OC211

A-21

Terminal block, 250 VAC/24 VDC, 0.6 A

8 outputs

CJ1W-OA201*1

A-22

Terminal block, 12 to 24 VDC, 2 A

8 outputs

CJ1W-OD201*1

A-23

Terminal block, 12 to 24 VDC, 0.5 A

8 outputs

CJ1W-OD203*1

A-24

Terminal block, 12 to 24 VDC, 0.5 A

16 outputs

CJ1W-OD211

A-25

Terminal block, 24 VDC, 0.5 A

16 outputs

CJ1W-OD213

A-26

Fujitsu-compatible connector, 12 to 24 VDC,
0.5 A

32 outputs

CJ1W-OD231

A-27

MIL connector, 12 to 24 VDC, 0.5 A

32 outputs

CJ1W-OD233

A-29

MIL connector, 24 VDC, 0.5 A

32 outputs

CJ1W-OD234

A-31

Fujitsu-compatible connector, 12 to 24 VDC,
0.3 A

64 outputs

CJ1W-OD261

A-33

MIL connector, 12 to 24 VDC, 0.3 A

64 outputs

CJ1W-OD263

Terminal block, 24 VDC, 2 A, load short-circuit protection, line disconnection detection

8 outputs

A-35
A-37

Terminal block, 24 VDC, 0.5 A, load short-cir- 8 outputs
cuit protection

CJ1W-OD204*1

A-39

Terminal block, 24 VDC, 0.5 A, load short-cir- 16 outputs
cuit protection

CJ1W-OD212

A-40

MIL connector, 24 VDC, 0.5 A, load short-circuit protection

32 outputs

CJ1W-OD232

A-41

MIL connector, 12 to 24 VDC, 0.3 A

64 outputs

CJ1W-OD262

A-43

CJ1W-OD202

*1 Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

A-1 Specifications of Basic I/O Units

App
A-1-1 Overview of Units

CJ2 CPU Unit Hardware User’s Manual

A-3

Appendices

z Basic Mixed I/O Units
Type of
Unit
Mixed I/O
Units

Name
24-VDC
Inputs/Transistor Output Units

Specifications
Sinking
output

Model

Fujitsu-compatible connector

16 inputs

Inputs: 24 VDC

16 outputs

Page

CJ1W-MD231

A-45

CJ1W-MD233

A-47

CJ1W-MD261

A-49

CJ1W-MD263

A-51

CJ1W-MD232

A-53

CJ1W-MD563

A-55

Outputs: 12 to 24 VDC, 0.5 A
MIL connector
Inputs: 24 VDC
Outputs: 12 to 24 VDC, 0.5 A
Fujitsu-compatible connector

32 inputs

Inputs: 24 VDC

32 outputs

Outputs: 12 to 24 VDC, 0.3 A
MIL connector
Inputs: 24 VDC
Outputs: 12 to 24 VDC, 0.3 A
Sourcing
output

MIL connector

16 inputs

Input: 24 VDC

16 outputs

Outputs: 24 VDC, 0.5 A, load short-circuit protection
TTL I/O Units

Inputs: 5 VDC

32 inputs

Outputs: 5 VDC, 35 mA

32 outputs

Precautions on Contact Output Units

A-57

Load short-circuit protection and line disconnection detection for CJ1W-OD202

A-149

Load short-circuit protection for CJ1W-OD204/OD212/OD232/MD232

A-151

Note For details on the connectors included with the Unit, refer to the information provided under Accessories in
the tables for Basic I/O Units in the following pages.

Reading Terminal Connection Diagrams
• I/O terminals in terminal connection diagrams are shown as viewed from the front panel of the Unit.
• Terminal numbers A0 to A9 and B0 to B9 are used in this manual, but they are not printed on all
Units.
• A0 to A20 and B0 to B20 are printed on the Units.

A-4

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-1-2

Basic I/O Units

Basic Input Units with Terminal Blocks
z CJ1W-ID201 DC Input Unit (12 to 24-VDC, 8 Points)
8-point DC Input Unit with Terminal Block

Model

CJ1W-ID201

Rated Input Voltage

12 to 24 VDC

Rated Input Voltage Range

10.2 to 26.4 VDC

Input Impedance

2.4 kΩ

Input Current

10 mA typical (at 24 VDC)

ON Voltage/ON Current

8.8 VDC min./3 mA min.

OFF Voltage/OFF Current

3 VDC max./1 mA max.

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 ms in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 ms using PLC Setup)*1

Number of Circuits

8 independent circuits

Number of Simultaneously ON
Points

100% simultaneously ON

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute
at a leakage current of 10 mA max.

Internal Current Consumption

80 mA max.

Weight

110 g max.
Signal name

2.4 kΩ

Internal circuits

560 Ω

1000 pF

IN0

COM0
Input indicator
to

A-1-2 Basic I/O Units

Internal circuits

1000 pF

2.4 kΩ

App

IN7

560 Ω

Circuit Configuration

COM7
Input indicator

Terminal Connections

Signal Connec- Signal
name tor pin name
C0
A0
IN0
B0
C1
A1
IN1
B1
C2
A2
IN2
B2
C3
A3
IN3
B3
C4
A4
IN4
B4
C5
A5
IN5
B5
C6
A6
IN6
B6
C7
A7
IN7
B7
NC
A8
B8 NC

12 to 24 VDC

Polarity of the input power supply can be connected in either direction.
CJ2 CPU Unit Hardware User’s Manual

A-1 Specifications of Basic I/O Units

Name

A-5

Appendices

*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the
response time are set to 0 ms due to internal element delays.
*2 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

z CJ1W-ID211 DC Input Unit (24 VDC, 16 Points)
Name

16-point DC Input Unit with Terminal Block

Model

CJ1W-ID211

Rated Input Voltage

24 VDC

Rated Input Voltage Range

20.4 to 26.4 VDC

Input Impedance

3.3 kΩ

Input Current

7 mA typical (at 24 VDC)

ON Voltage/ON Current

14.4 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time
OFF Response Time

8.0 ms max.
(Can be set to between 0 and 32 ms in the PLC Setup.)*1
8.0 ms max.
(Can be set to between 0 and 32 ms using PLC Setup)*1

Number of Circuits

16 (16 points/common, 1 circuit)

Number of Simultaneously ON Points

100% simultaneously ON (at 24 VDC)
(Refer to the following illustration.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at
a leakage current of 10 mA max.

Internal Current Consumption

80 mA max.

Weight

110 g max.
Temperature characteristics
for simultaneously ON points

470 Ω

3.3 kΩ

Circuit Configuration

1000 pF

COM
Input indicator

COM

Internal circuits

IN0
IN15

16 points
at 45°C.

No. of simultaneously ON points

Signal
name

12 points
at 55°C.

Input voltage: 26.4 VDC

12
10
8
6
4
2
0

(°C)

Ambient temperature

Signal
name

IN0
IN2
IN4
IN6

Terminal Connections

IN8
IN10
IN12
IN14
COM

Connector pin

A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

Signal
name

IN1
IN3
IN5
IN7
IN9

24 VDC

IN11
IN13
IN15
COM

• Polarity of the input power supply can be connected in either direction.

A-6

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-ID212 DC Input Unit (24 VDC, 16 Points)
Name

16-point DC Input Unit with Terminal Block

Model

CJ1W-ID212

Rated Input Voltage

24 VDC

Rated Input Voltage Range

20.4 to 26.4 VDC

Input Impedance

3.3 kΩ

Input Current

7 mA typical (at 24 VDC)

ON Voltage/ON Current

14.4 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time
OFF Response Time

8.0 ms max.
(Can be set to between 0 and 32 ms in the PLC Setup.)*1
8.0 ms max.
(Can be set to between 0 and 32 ms using PLC Setup)*1

Number of Circuits

16 (16 points/common, 1 circuit)

Number of Simultaneously ON Points

100% simultaneously ON (at 24 VDC)
(Refer to the following illustration.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at
a leakage current of 10 mA max.

Internal Current Consumption

130 mA max.

Weight

110 g max.
Temperature characteristics
for simultaneously ON points

Circuit Configuration

1000 pF

COM
Input indicator

COM

Internal circuits

IN0
IN15

16 points
at 45°C.

18
16

12 points
at 55°C.

Input voltage: 26.4 VDC

12
10
8
6
4
2
0

(°C)

Ambient temperature

Signal
name

IN0
IN2

IN6

Terminal Connections

IN8

IN12
IN14
COM

B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

IN1
IN3
IN5
IN7
IN9

24 VDC

A-1-2 Basic I/O Units

IN10

Signal
name

App

IN4

Connector pin

IN11
IN13
IN15
COM

• Polarity of the input power supply can be connected in either direction.

*1 The ON response time will be 15 µs maximum and OFF response time will be 90 µs maximum even if the
response time are set to 0 ms due to internal element delays.
*2 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.

CJ2 CPU Unit Hardware User’s Manual

A-1 Specifications of Basic I/O Units

470 Ω

3.3 kΩ

No. of simultaneously ON points

Signal
name

A-7

Appendices

z CJ1W-ID231 DC Input Unit (24 VDC, 32 Points)
32-point DC Input Unit with Fujitsu Connector

Model

CJ1W-ID231

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

5.6 kΩ

Input Current

4.1 mA typical (at 24 VDC)

ON Voltage/ON Current

19.0 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

Number of Circuits

32 (16 points/common, 2 circuits)

Number of Simultaneously ON Points

75% (12 points/common) simultaneously ON (at 24 VDC) (Refer to the following illustration.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

Internal Current Consumption

90 mA max.

Weight

70 g max.

Accessories

None
Allocated
CIO word

Signal
name

COM0
COM0

Circuit Configuration
Input indicator

32 points at 40°C

32 points at 48°C

30
25
20
15

Input voltage:
24 VDC
Input voltage:
26.4 VDC
12 points/
common
at 55°C
10 points/
common
at 55°C

10
5
0
10

60 (°C)

560 Ω

Ambient Temperature
1000 pF

Connect
or row B

Wd
m+1

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic

5.6 kΩ
IN0
to
IN15

Internal circuits

Connect
or row A

IN0
to
IN15

560 Ω

Wd m

1000 pF

5.6 kΩ

Number of simultaneously ON points

Name

COM1
COM1

A-8

CJ2 CPU Unit Hardware User’s Manual

Appendices

Signal Connec- Signal
name tor pin name

Allocated
CIO word

IN0
IN1
IN2
IN3

Wd m

IN4

24
VDC

IN5
IN6
IN7
COM0
IN8
IN9
IN10
IN11

Terminal Connections

Wd m

IN12
IN13
IN14
IN15
COM0
NC
NC

A1 B1
A2 B2
A3 B3
A4 B4
A5 B5
A6 B6
A7 B7
A8 B8
A9 B9
A10 B10
A11 B11
A12 B12
A13 B13
A14 B14
A15 B15
A16 B16
A17 B17
A18 B18
A19 B19
A20 B20

Allocated
CIO word

IN0
IN1
IN2
IN3

Wd m+1

IN4
IN5

24
VDC

IN6
IN7
COM1
IN8
IN9
IN10
IN11

Wd m+1
IN12
IN13
IN14
IN15
COM1
NC
NC

• The input power polarity can be connected in either direction.
• Be sure to wire both pins A9 and A18 (COM0), and set the same polarity for both
pins.
• Be sure to wire both pins B9 and B18 (COM1), and set the same polarity for both
pins.
*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the
response times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.

• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

z CJ1W-ID232 DC Input Unit (24 VDC, 32 Points)
Model

CJ1W-ID232

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

5.6 kΩ

Input Current

4.1 mA typical (at 24 VDC)

ON Voltage/ON Current

19.0 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.) *1

Number of Circuits

32 (16 points/common, 2 circuits)

Number of Simultaneously ON Points

75% (12 points/common) simultaneously ON (at 24 VDC) (Refer to the following
illustration.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

Internal Current Consumption

90 mA max.

Weight

70 g max.

Accessories

None

CJ2 CPU Unit Hardware User’s Manual

A-1-2 Basic I/O Units

32-point DC Input Unit with MIL Connector

App

Name

A-1 Specifications of Basic I/O Units

• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).

A-9

Appendices

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic

Signal
name
Number of simultaneously ON points

Allocated
CIO word

COM0
COM0

Circuit Configuration
Input indicator

Internal circuits

Connect
or row A

IN0
to
IN15

1000 pF

Wd m

560 Ω

5.6 kΩ

30
25
20

Input voltage:
24 VDC
Input voltage:
26.4 VDC
12 points/common
at 55°C
10 points/common
at 55°C

15
10
5
0
0

60 (°C)

560 Ω

Ambient Temperature
1000 pF

Connect
or row B

Wd
m+1

IN0
to
IN15

32 points at 40°C 32 points at 48°C

COM1
COM1

Signal Connec- Signal
name tor pin name

Allocated
CIO word

24 VDC
NC
COM1
IN15
IN14
IN13
IN12

Wd m+1

IN11
IN10
IN9
IN8
NC
COM0

Terminal Connections

IN15
IN14
IN13
IN12

Wd m
IN11
IN10

24 VDC

IN9
IN8

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40

NC
COM1
IN7
IN6
IN5
IN4

Wd m+1

IN3
IN2

IN1
IN0
NC
COM0
IN7
IN6
IN5
IN4

Wd m

IN3
IN2
IN1
IN0

• The input power polarity can be connected in either direction.
• Be sure to wire both pins 23 and 24 (COM0), and set the same polarity for both
pins.
• Be sure to wire both pins 3 and 4 (COM1), and set the same polarity for both pins.
*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the
response times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

z CJ1W-ID233 DC Input Unit (24 VDC, 32 Points)

A-10

Name

32-point DC Input Unit with MIL Connector

Model

CJ1W-ID233

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

5.6 kΩ

Input Current

4.1 mA typical (at 24 VDC)

ON Voltage/ON Current

19.0 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

CJ2 CPU Unit Hardware User’s Manual

Appendices

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.) *1

Number of Circuits

32 (16 points/common, 2 circuits)

Number of Simultaneously ON Points

75% (12 points/common) simultaneously ON (at 24 VDC) (Refer to the following
illustration.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

Internal Current Consumption

200 mA max.

Weight

70 g max.

Accessories

None
Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic

Signal
name

COM0
COM0

Circuit Configuration
Input indicator
5.6 kΩ
IN0
to
IN15

32 points at 40°C 32 points at 48°C

35
30
25
20

Input voltage:
24 VDC
Input voltage:
26.4 VDC
12 points/common
at 55°C
10 points/common
at 55°C

15
10
5
0
0

60 (°C)

560 Ω

Ambient Temperature
1000 pF

Connect
or row B

Wd
m+1

Internal circuits

1000 pF

Connect
or row A

IN0
to
IN15

560 Ω

5.6 kΩ

Wd m

Number of simultaneously ON points

Allocated
CIO word

Signal Connec- Signal
name tor pin name

Allocated
CIO word

A-1 Specifications of Basic I/O Units

COM1
COM1

Allocated
CIO word

24 VDC
NC
COM1
IN15
IN14
IN13
IN12

Wd m+1

IN11
IN10
IN9
IN8
NC
COM0
IN15
IN14
IN13
IN12

Wd m
IN11

24 VDC

IN9
IN8

IN7
IN6
IN5
IN4

Wd m+1

IN3
IN2

IN1
IN0
NC
COM0
IN7
IN6
IN5
IN4

Wd m

IN3
IN2
IN1
IN0

• The input power polarity can be connected in either direction.
• Be sure to wire both pins 23 and 24 (COM0), and set the same polarity for both
pins.
• Be sure to wire both pins 3 and 4 (COM1), and set the same polarity for both pins.
*1 The ON response time will be 15 µs maximum and OFF response time will be 90 µs maximum even if the
response times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

CJ2 CPU Unit Hardware User’s Manual

A-11

A-1-2 Basic I/O Units

IN10

NC
COM1

App

Terminal Connections

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40

Appendices

z CJ1W-ID261 DC Input Unit (24 VDC, 64 Points)

A-12

Model

CJ1W-ID261

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

5.6 kΩ

Input Current

4.1 mA typical (at 24 VDC)

ON Voltage/ON Current

19.0 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

Number of Circuits

64 (16 points/common, 4 circuits)

Number of Simultaneously ON Points

50% (16 points/common) simultaneously ON (at 24 VDC) (Refer to the following
illustrations.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

None

Circuit Configuration

Allocated Signal
CIO word name
IN0
to
Wd m
Connect
IN15
or row A
COM0
COM0
CN1
IN0
Wd
to
Connect m+1
IN15
or row B
COM1
COM1
IN0
Wd
to
Connect m+2 IN15
or row A
COM2
COM2
CN2
IN0
Wd
to
Connect m+3
IN15
or row B
COM3
COM3

5.6 kΩ

SW
Input indicator
5.6 kΩ

Indicator
switching
circuit
Internal circuits

Accessories

560 Ω

110 g max.

1000 pF

Weight

560 Ω

90 mA max.

1000 pF

Internal Current Consumption

Number of simultaneously ON points

64-point DC Input Unit with Fujitsu Connector

Internal circuits

Name

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
64 points at
64 points at 47°C
64 points at 35°C
25°C

Input voltage:
20.4 VDC

60
50

12 points/common
(total: 45 points)
at 55°C
8 points/common
at 55°C

Input voltage:
24 VDC
Input voltage:
26.4 VDC

40
30
20
10
0
0

8 points/common
(total: 26 points max.)
at 55°C
60 (°C)

Ambient Temperature

CJ2 CPU Unit Hardware User’s Manual

Appendices

NC
COM1

B20 A20
B19 A19
B18 A18

Signal
name

Allocated
CIO word

IN0
IN1
NC
IN2
COM0

B17 A17
IN15

IN15

B16 A16
IN14

IN14

B15 A15
IN13

Wd m+1

IN13

IN12

B13 A13
IN11

IN11

24
VDC

IN8
COM1

IN7
COM2

IN10

B11 A11
B10 A10
B9 A9

IN8
IN9
IN9
IN8
IN10
COM0

B8 A8
IN7

IN7

B7 A7
IN6

IN6

B6 A6
IN5

IN5

B5 A5
IN4

B4 A4
IN3

B3 A3
IN2
IN1
IN0

B2 A2
B1 A1

24
VDC

IN4

IN11
IN12
IN13

Wd m

24
VDC

IN5
IN6

Wd m+2

IN9

Wd m+1

IN4

B12 A12
IN10

Terminal Connections

IN3

Wd m

B14 A14
IN12

Signal
name

IN14
IN15

IN3
COM2

IN2
NC

IN1
NC

IN0

• The input power polarity can be connected in either direction.
• Be sure to wire both pins A9 and A18
(COM0) of CN1, and set the same
polarity for both pins.
• Be sure to wire both pins B9 and B18
(COM1) of CN1, and set the same
polarity for both pins.

Connector pin
A1 B1
A2 B2
A3 B3
A4 B4
A5 B5
A6 B6
A7 B7
A8 B8
A9 B9
A10 B10
A11 B11
A12 B12
A13 B13
A14 B14
A15 B15
A16 B16
A17 B17
A18 B18
A19 B19
A20 B20

Signal
name

Allocated
CIO word

IN0
IN1
IN2
IN3
IN4
IN5

24
VDC

Wd m+3

CN2

Wd m+2

Signal
name

Connector pin

IN6
IN7
COM3

IN8
IN9
IN10
IN11
IN12

Wd m+3

CN1
Allocated
CIO word

IN13
IN14
IN15
COM3
NC
NC

• The input power polarity can be connected in either direction.
• Be sure to wire both pins A9 and A18
(COM2) of CN2, and set the same
polarity for both pins.
• Be sure to wire both pins B9 and B18
(COM3) of CN2, and set the same
polarity for both pins.

Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

z CJ1W-ID262 DC Input Unit (24 VDC, 64 Points)
64-point DC Input Unit with MIL Connector

Model

CJ1W-ID262

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

5.6 kΩ

Input Current

4.1 mA typical (at 24 VDC)

ON Voltage/ON Current

19.0 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

OFF Response Time

8.0 ms max. (Can be set to between 0 and 32 in the PLC Setup.)*1

Number of Circuits

64 (16 points/common, 4 circuits)

Number of Simultaneously ON Points

50% (8 points/common) simultaneously ON (at 24 VDC) (Refer to the following
illustrations.)

Insulation Resistance

20 MΩ between external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

CJ2 CPU Unit Hardware User’s Manual

A-1-2 Basic I/O Units

Internal Current Consumption

App

Name

A-1 Specifications of Basic I/O Units

*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the
response times are set to 0 ms due to internal element delays.

90 mA max.

A-13

Appendices

Weight

110 g max.

Accessories

None
Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic

Internal circuits

CN2

Indicator
switching
circuit

5.6 kΩ
1000 pF

Circuit Configuration

SW
Input indicator

Number of simultaneously ON points

1000 pF

IN0
to
IN15
COM0
COM0
IN0
to
Wd m+1
IN15
COM1
COM1
IN0
to
Wd m+2
IN15
COM2
COM2
IN0
to
Wd m+3
IN15
COM3
COM3

560 Ω

5.6 kΩ

Wd m

CN1

Internal circuits

Signal
name

560 Ω

Allocated
CIO word

64 points at 35°C 64 points at 47°C

64 points at 25°C

Input voltage:
20.4 VDC

60
50

Input voltage:
26.4 VDC

8 points/common
(total: 26 points max.)
at 55°C

10
0
0

60 (°C)

Ambient Temperature

CN1
Allocated
CIO word

12 points/common
(total: 45 points)
at 55°C
8 points/common
at 55°C

Input voltage:
24 VDC

CN2
Allocated
CIO word

Signal Connec- Signal
name tor pin name

Allocated
CIO word

Signal
name

Connector pin

Signal
name

Allocated
CIO word

24 VDC

IN6
IN7

COM0
NC
IN0
IN1
IN2

Terminal Connections

Wd m+1

IN3
IN4
IN5
IN6
IN7

COM1
NC

IN10

34 33

IN11

32 31

IN12

30 29

IN13

28 27

IN14

26 25

IN15

24 23
22 21
20 19

IN15

IN7

IN14

IN6

IN13
IN12
IN11
IN10
IN9

COM0

IN8

COM2

9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24

COM3

IN5
IN4
IN3
IN2
IN1
IN0

NC
COM2

18 17

IN9

16 15

IN10

IN15

25 26

IN7

14 13

IN11

IN14

27 28

IN6

12 11

IN12

IN13

29 30

IN5

10 9

IN13

IN14

IN15

COM1

IN12
IN11
IN10

24
VDC

IN9
IN8

31 32
33 34
35 36
37 38
39 40

Wd m+3

IN5

36 35

NC
COM3

24 VDC

IN4
IN3
IN2

Wd m+2

IN4

IN9

Wd m+3

Wd m

IN3

38 37

Wd m+2

IN2

IN8

Wd m

IN1

40 39

Wd m+1

IN0

IN1
IN0

24 VDC

• The input power polarity can be
connected in either direction.
• Be sure to wire both pins 23 and
24 (COM0) of CN1, and set the
same polarity for both pins.
• Be sure to wire both pins 3 and 4
(COM1) of CN1, and set the same
polarity for both pins.

• The input power polarity can be connected in either direction.
• Be sure to wire both pins 23 and 24
(COM2) of CN2, and set the same polarity for both pins.
• Be sure to wire both pins 3 and 4 (COM3)
of CN2, and set the same polarity for
both pins.

*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the
response times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

A-14

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-IA201 AC Input Unit (200 VAC, 8 Points)
Name

8-point AC Input Unit with Terminal Block

Model

CJ1W-IA201

Rated Input Voltage

200 to 240 VAC 50/60 Hz

Rated Input Voltage Range

170 to 264 VAC

Input Impedance

21 kΩ (50 Hz), 18 kΩ (60 Hz)

Input Current

9 mA typical (at 200 VAC, 50 Hz),
11 mA typical (at 200 VAC, 60 Hz)

ON Voltage/ON Current

120 VAC min./4 mA min.

OFF Voltage/OFF Current

40 VAC max./2 mA max.

ON Response Time

18.0 ms max. (PLC Setup default setting: 8 ms)*1

OFF Response Time

48.0 ms max. (PLC Setup default setting: 8 ms)*1

Number of Circuits

8 (8 points/common, 1 circuit)

Number of Simultaneously ON Points

100% (8 points/common) simultaneously ON

Insulation Resistance

20 MΩ between external terminals and the GR terminal (500 VDC)

Dielectric Strength

2,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Internal Current Consumption

80 mA max.

Weight

130 g max.

Accessories

None
A-1 Specifications of Basic I/O Units

Signal
name

Circuit Configuration

IN0
to
IN7

0.15 µF

1 MΩ

220 Ω

COM

Internal circuits

Input indicator
820 Ω

Connector pin

Signal
name
IN0

B0
NC

IN1

B1
NC

IN2

Terminal Connections

App

B2
IN3

B3
IN4

200 to 240 VAC

B4
NC

IN6

B6
NC

IN7

B7
NC

COM

*1 The Input ON and OFF response times for Basic I/O Units can be set to 0 ms, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms,
16 ms, or 32 ms in the PLC Setup. When the response times have been set to 0 ms, the ON response time will
be 10 ms maximum and the OFF response time will be 40 ms maximum due to internal element delays.
*2 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

CJ2 CPU Unit Hardware User’s Manual

A-15

A-1-2 Basic I/O Units

IN5

Appendices

z CJ1W-IA111 AC Input Unit (100 VAC, 16 points)
Name

16-point AC Input Unit with Terminal Block

Model

CJ1W-IA111

Rated input voltage

100 to 120 VAC 50/60 Hz*2

Rated Input Voltage Range

85 to 132 VAC

Input Impedance

14.5 kΩ (50 Hz), 12 kΩ (60 Hz)

Input Current

7 mA typical (at 100 VAC, 50 Hz),
8 mA typical (at 100 VAC, 60 Hz)

ON Voltage/ON Current

70 VAC min./4 mA min

OFF Voltage/OFF Current

20 VAC max./2 mA max

ON Response Time

18 ms max. (PLC Setup default setting: 8 ms)*1

OFF Response Time

48 ms max. (PLC Setup default setting: 8 ms)*1

Number of Circuits

16 (16 points/common, 1 circuit)

Number of Inputs ON Simultaneously 100% simultaneously ON (16 points/common)
Insulation Resistance

20 MΩ between external terminals and the GR terminal (500 VDC)

Dielectric Strength

2,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Internal Current Consumption

90 mA max.

Weight

130 g max.

Accessories

None
Signal
name
Input indicator
470 Ω
IN0
to
IN15

0.22 µF

Internal circuits

Circuit Layout

1 MΩ

270 Ω

COM

Signal
name

IN0
IN2
IN4
IN6

Terminal Connections

Connector pin

IN1
B0

IN3
B1

IN5
B2

A3
A4

IN12

IN9
B4

IN11
B5

IN13
B6

IN14

IN15

A7
COM

100 to 120 VAC

IN7
B3

IN8
IN10

Signal
name

B7
A8

COM
B8

*1 The Input ON and OFF response times for Basic I/O Units can be set to 0 ms, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms,
16 ms, or 32 ms in the PLC Setup. When the response times have been set to 0 ms, the ON response time will
be 10 ms maximum and the OFF response time will be 40 ms maximum due to internal element delays.
*2 Use an input voltage of 90 VAC or higher when connecting 2-wire sensors.
*3 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.

A-16

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-INT01 Interrupt Input Unit (16 Points)
Name

16-point Interrupt Input Unit with Terminal Block

Model

CJ1W-INT01

Rated Input Voltage

24 VDC

Rated Input Voltage
Range

20.4 to 26.4 VDC

Input Impedance

3.3 kΩ

Input Current

7 mA typical (at 24 VDC)

ON Voltage/ON Current

14.4 VDC min./3 mA min.

OFF Voltage/OFF Current 5 VDC max./1 mA max.
ON Response Time

0.05 ms max.

OFF Response Time

0.5 ms max.

Number of Circuits

16 (16 points/common, 1 circuit)

Number of Simultaneously ON Points

100% (16 points/common) simultaneously ON (24 VDC)

Insulation Resistance

20 MΩ between external terminals and GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between external terminals and GR terminal for 1 minute at a leakage
current of 10 mA max.
80 mA max.

Weight

110 g max.

Accessories

None
Signal
name
3.3 kΩ

IN15

470 Ω

1000 pF

Internal circuits

IN0

COM
Input indicator

COM

Circuit Configuration

16 points at 45°C

OFF

16
14

12 points at 55°C

Input voltage: 26.4 VDC

0.5 ms min.

ON
0.05 ms min.

10
8
6

2
0

(°C)

Ambient Temperature

CJ2 CPU Unit Hardware User’s Manual

A-17

A-1-2 Basic I/O Units

*1 With the CJ2JH-CPU6@-EIP CPU
Units, the Unit must be mounted as
one of the four Units immediately
next to the CPU Unit.

App

Number of simultaneously ON points

Temperature characteristics for
simultaneously ON points

• Up to two Interrupt Input Units can be
mounted to the CPU Rack, but they
must be connected as one the five
Unit*1 immediately next to the CPU
Unit. If an Interrupt Input Unit is connected in any other position, an I/O
setting error will occur.
• Set the pulse width of signals input to
the Interrupt Input Unit so they satisfy
the following conditions.

A-1 Specifications of Basic I/O Units

Internal Current Consumption

Appendices

Signal
name

IN0
IN2
IN4
IN6
IN8

Terminal Connections

IN10
IN12
IN14
COM

Connector pin

A0
B0
A1
B1
A2
B2
A3
B3
A4

Signal
name

IN1
IN3
IN5
24 VDC

IN7
IN9

B4
A5

IN11
B5

IN13
B6
IN15

A7
B7
A8

COM
B8

• The polarity can be connected in either direction.
*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.

z CJ1W-IDP01 Quick-response Input Unit (16 Points)

A-18

Name

16-point Quick-response Input Unit with Terminal Block

Model

CJ1W-IDP01

Rated Input Voltage

24 VDC

Rated Input Voltage Range

20.4 to 26.4 VDC

Input Impedance

3.3 kΩ

Input Current

7 mA typical (at 24 VDC)

ON Voltage/ON Current

14.4 VDC min./3 mA min.

OFF Voltage/OFF Current

5 VDC max./1 mA max.

ON Response Time

0.05 ms max.

OFF Response Time

0.5 ms max.

Number of Circuits

16 (16 points/common, 1 circuit)

Number of Simultaneously ON Points

100% (16 points/common) simultaneously ON (24 VDC)

Insulation Resistance

20 MΩ between external terminals and GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between external terminals and GR terminal for 1 minute
at a leakage current of 10 mA max.

Internal Current Consumption

80 mA max.

Weight

110 g max.

Accessories

None

CJ2 CPU Unit Hardware User’s Manual

Appendices

Signal
name
3.3 kΩ

IN15

470 Ω

1000 pF

Internal circuits

IN0

COM
Input indicator

COM

Number of simultaneously ON points -- 16 points at 45°C
Ambient temperature characteristics

Circuit Configuration
Number of simultaneously ON points

18
16

12 points at 55°C

Input voltage: 26.4 VDC

12
10
8
6
4
2
0

60 (°C)

Ambient Temperature
*1

Signal
name

Connector pin

Signal
name

IN0

IN1

IN2

IN3

IN4

IN5
IN7

IN8

IN9

A4
B4

IN10

IN11

IN12

IN13

IN14

IN15

COM

A8
B8

• The input power supply polarity can be connected in either direction.

• With quick-response inputs, pulse inputs shorter than the CPU Unit's cycle time can be read by the
CPU Unit.

App

• The pulse width (ON time) that can be read by the Quick-response Input Unit is 0.05 ms.

A-1 Specifications of Basic I/O Units

Terminal Connections

24 VDC

IN6

• Inputs read by the internal circuits are cleared when inputs are refreshed.
*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.

A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-19

Appendices

Basic Output Units
z CJ1W-OC201 Contact Output Unit (Independent Relays, 8 Points)
Name

8-point Contact Output Unit with Terminal Block (Independent Relays)

Model

CJ1W-OC201

Max. Switching Capacity

2 A 250 VAC (cosφ = 1), 2 A 250 VAC (cosφ = 0.4), 2 A 24 VDC
(16 A/Unit)

Min. Switching Capacity

1 mA 5 VDC

Relays

NY-24W-K-IE (Fujitsu Takamizawa Components, Ltd.), Cannot be
replaced.
Electrical: 150,000 operations (24 VDC, resistive load)/100,000 operations (240 VAC, cosφ = 0.4, inductive load)

Service Life of Relay

Mechanical: 20,000,000 operations
Service life will vary depending on the connected load. Refer to page
A-57 for information on service life according to the load.

ON Response Time

15 ms max.

OFF Response Time

15 ms max.

Number of Circuits

8 independent contacts

Insulation Resistance

20 MΩ between external terminals and the GR terminal (500 VDC)

Dielectric Strength

2,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Internal Current Consumption

90 mA 5 VDC max.
48 mA 24 VDC max. (6 mA × No. of ON points)

Weight

140 g max.
Signal
name

Circuit Configuration

Internal circuits

OUT

OUTc

Output indicator

Signal
name
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6

Terminal Connections

OUT7
NC

Connector pin

A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

Signal
name
OUTC0
OUTC1
OUTC2
OUTC3
OUTC4
OUTC5
OUTC6
OUTC7

L
L
L
L
L
L
L
L

2 A 250 VAC,
2 A 24 VDC max.

• The input power supply polarity can be connected in either direction.
*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

A-20

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OC211 Contact Output Unit (16 Points)
Name

16-point Contact Output Unit with Terminal Block

Model

CJ1W-OC211

Max. Switching Capacity

2 A 250 VAC (cosφ = 1), 2 A 250 VAC (cosφ = 0.4), 2 A 24 VDC (8 A/Unit)

Min. Switching Capacity

1 mA 5 VDC

Relays

NY-24W-K-IE (Fujitsu Takamizawa Components, Ltd.), Cannot be
replaced.
Electrical: 150,000 operations (24 VDC, resistive load)/ 100,000 operations (240 VAC, cosφ = 0.4, inductive load)

Service Life of Relay

Mechanical: 20,000,000 operations
Service life will vary depending on the connected load. Refer to page A-57
for information on service life according to the load.

ON Response Time

15 ms max.

OFF Response Time

15 ms max.

Number of Circuits

16 points/common, 1 circuit

Insulation Resistance

20 MΩ between external terminals and the GR terminal (500 VDC)

Dielectric Strength

2,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Internal Current Consumption

110 mA 5 VDC max.
96 mA 24 VDC max. (6 mA × No. of ON points)

Weight

170 g max.
A-1 Specifications of Basic I/O Units

Signal
name
OUT0

Circuit Configuration

Internal circuits

OUT15

COM
COM

Output indicator

Signal
name
OUT0

OUT2

Terminal Connections

OUT6

OUT8
OUT10

OUT12

OUT14
COM

B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

OUT1

OUT3

OUT5

OUT7

OUT9

OUT11

OUT13

OUT15

A-1-2 Basic I/O Units

L
L

2 A 250 VAC,
2 A 24 VDC max.

OUT4

Signal
name

App

Connector pin

COM

*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.

CJ2 CPU Unit Hardware User’s Manual

A-21

Appendices

z CJ1W-OA201 Triac Output Unit (8 Points)
Name

8-point Triac Output Unit with Terminal Block

Model

CJ1W-OA201

Max. Switching Capacity

0.6 A 250 VAC, 50/60 Hz (2.4 A/Unit)

Max. Inrush Current

15 A (pulse width: 10 ms max.)

Min. Switching Capacity

50 mA 75 VAC

Leakage Current

1.5 mA (200 VAC) max.

Residual Voltage

1.6 VAC max.

ON Response Time

1 ms max.

OFF Response Time

1/2 of load frequency + 1 ms or less.

Number of Circuits

8 (8 points/common, 1 circuit)

Surge Protector

C.R Absorber + Surge Absorber

Fuses

5 A (1/common, 1 used)
The fuse cannot be replaced by the user.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (500 VDC)

Dielectric Strength

2,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Internal Current Consumption

220 mA max.

Weight

150 g max.
Signal
name

Internal circuits

Output indicator

Circuit Configuration

OUT0
to
OUT7
COM
Fuse

Connector pin

Signal
name
OUT0

B0
NC

OUT1

B1
OUT2

Terminal Connections

OUT3

B5
A6

OUT6

B6
OUT7

B7
NC

L
L
L

OUT5

OUT4

B4
NC

250 VAC max.

L
L
L

COM

*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

A-22

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD201 Transistor Output Unit (8 Points)
Name

8-point Transistor Output Unit with Terminal Block (Sinking Outputs)

Model

CJ1W-OD201

Rated Voltage

12 to 24 VDC

Operating Load Voltage Range

10.2 to 26.4 VDC

Maximum Load Current

2.0 A/point, 8.0 A/Unit

Maximum Inrush Current

10 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

8 (4 points/common, 2 circuits)

Internal Current Consumption

90 mA max.

Fuse

6.3 A (1/common, 2 used)
The fuse cannot be replaced by the user.

External Power Supply

12 to 24 VDC, 10 mA min.

Weight

110 g max.
A-1 Specifications of Basic I/O Units

Signal
name
+V

Circuit Configuration

Internal circuits

OUT0
to
OUT3
Fuse
COM0

Output indicator

+V
OUT4
to
OUT7
Fuse
COM1

Signal
name

Connector pin

Signal
name

App

OUT0

L
L

OUT2

A1
B1
A2
B2

COM0

A3
B3

Terminal Connections

L
L

OUT4

A5
B5

OUT6

A6
B6

NC
12 to 24 VDC
COM1

A7
B7
A8
B8

OUT3

L
L

A-1-2 Basic I/O Units

NC
12 to 24 VDC

OUT1

NC
+V
NC
OUT5
OUT7

L
L

• When wiring, pay careful attention to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

CJ2 CPU Unit Hardware User’s Manual

A-23

Appendices

z CJ1W-OD203 Transistor Output Unit (8 Points)
Name

8-point Transistor Output Unit with Terminal Block (Sinking Outputs)

Model

CJ1W-OD203

Rated Voltage

12 to 24 VDC

Operating Load Voltage Range

10.2 to 26.4 VDC

Maximum Load Current

0.5 A/point, 4.0 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.1 ms max.

OFF Response Time

0.8 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

8 (8 points/common, 1 circuit)

Internal Current Consumption

100 mA max.

Fuse

None

External Power Supply

10.2 to 26.4 VDC, 20 mA min.

Weight

110 g max.
Signal
name

Circuit Configuration

Internal circuits

Output indicator
+V
OUT0
to
OUT7

COM

Signal Connec- Signal
name tor pin name

Terminal Connections

L OUT0 A0
L OUT2 A1
L OUT4 A2
L OUT6 A3
NC
A4
NC
A5
NC
A6
NC
A7
12 to 24 VDC
COM
A8

B0
B1
B2
B3
B4
B5
B6
B7
B8

OUT1 L
OUT3 L
OUT5 L
OUT7 L
NC
NC
NC
NC
+V

A-24

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD211 Transistor Output Unit (16 Points)
Name

16-point Transistor Output Unit with Terminal Block (Sinking Outputs)

Model

CJ1W-OD211

Rated Voltage

12 to 24 VDC

Operating Load Voltage
Range

10.2 to 26.4 VDC

Maximum Load Current

0.5 A/point, 5.0 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.1 ms max.

OFF Response Time

0.8 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at
a leakage current of 10 mA max.

Number of Circuits

16 (16 points/common, 1 circuit)

Internal Current Consumption

5 VDC 100 mA max.

Fuse

None

External Power Supply

10.2 to 26.4 VDC, 20 mA min.

Weight

110 g max.

Internal circuits

Circuit Configuration

A-1 Specifications of Basic I/O Units

Signal
name

Output indicator
+V
OUT0
to
OUT15

COM

Signal
name

L
L
L

OUT2
OUT4
OUT6

OUT8

OUT10

OUT12

OUT14
COM

12 to 24 VDC

B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

OUT1
OUT3
OUT5
OUT7
OUT9
OUT11
OUT13
OUT15

L
L
L
L
L
L
L
L

CJ2 CPU Unit Hardware User’s Manual

A-25

A-1-2 Basic I/O Units

Signal
name

App

Terminal Connections

OUT0

Connector pin

Appendices

z CJ1W-OD213 Transistor Output Unit (16 Points)
Name

16-point Transistor Output Unit with Terminal Block (Sinking Outputs)

Model

CJ1W-OD213

Rated Voltage

24 VDC

Operating Load Voltage
Range

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 5.0 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

15 µs max.

OFF Response Time

80 µs max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at
a leakage current of 10 mA max.

Number of Circuits

16 (16 points/common, 1 circuit)

Internal Current Consumption

5 VDC 150 mA max.

Fuse

None

External Power Supply

20.4 to 26.4 VDC, 55 mA min.

Weight

110 g max.
Signal
name
+V
OUT0
to

Internal circuits

Circuit Configuration

OUT15

COM
Output indicator

Signal
name

L
L
L

Terminal Connections

OUT0
OUT2
OUT4

OUT6

OUT8

OUT10

OUT12

OUT14
COM

24 VDC

Connector pin

A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8

Signal
name

OUT1
OUT3
OUT5
OUT7
OUT9
OUT11
OUT13
OUT15

L
L
L
L
L
L
L
L

A-26

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD231 Transistor Output Unit (32 Points)
Name

32-point Transistor Output Unit with Fujitsu Connector (Sinking Outputs)

Model

CJ1W-OD231

Rated Voltage

12 to 24 VDC

Operating Load Voltage Range

10.2 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2.0 A/common, 4.0 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.1 ms max.

OFF Response Time

0.8 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

32 (16 points/common, 2 circuits)

Internal Current Consumption

5 VDC 140 mA max.

Fuse

None

External Power Supply

10.2 to 26.4 VDC, 30 mA min.

Weight

70 g max.

Accessories

None
A-1 Specifications of Basic I/O Units

Signal
name

Allocated
CIO word

Circuit Configuration

Internal circuits

OUT0
to
OUT15

Output indicator

Wd m

Connect
or row A

Wd m+1

Connect
or row B

COM0
COM0

+V
OUT0
to
OUT15
COM1
COM1

App
A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-27

Appendices

Signal Connec- Signal
name tor pin name

Allocated
CIO word

OUT0

OUT1

L OUT2 A3

OUT2

L OUT3 A4

OUT3

L OUT4 A5

OUT4

L
L

Wd m

12 to
24 VDC

OUT5

OUT6

L OUT7 A8

COM0

OUT7

Allocated
CIO word
L
L
L
L
L

12 to
24 VDC

Wd m+1

L
L
L

COM1

+V A10 B10 +V

L
L

OUT8 A11 B11 OUT8
OUT9

A12 B12

OUT9

L
L OUT10 A13 B13 OUT10 L

Terminal Connections

Wd m

L OUT11 A14 B14 OUT11 L
L

OUT12

OUT13

OUT14

A15 B15
A16 B16
A17 B17

OUT12
OUT13
OUT14

Wd m+1

L
L
L

L OUT15 A18 B18 OUT15 L
COM0
+V

A19 B19
A20 B20

COM1
+V

• When wiring, pay careful attention to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals A9 and A19 (COM0).
• Be sure to wire both terminals B9 and B19 (COM1).
• Be sure to wire both terminals A10 and A20 (+V).
• Be sure to wire both terminals B10 and B20 (+V).

A-28

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD233 Transistor Output Unit (32 Points)
Name

32-point Transistor Output Unit with MIL Connector (Sinking Outputs)

Model

CJ1W-OD233

Rated Voltage

12 to 24 VDC

Operating Load Voltage Range

10.2 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2 A/common, 4 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.1 ms max.

OFF Response Time

0.8 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

32 (16 points/common, 2 circuits)

Internal Current Consumption

140 mA max.

Fuse

None

External Power Supply

12 to 24 VDC, 30 mA min.

Weight

70 g max.
Signal
name

Allocated
CIO word

A-1 Specifications of Basic I/O Units

Circuit Configuration

Internal circuits

OUT0
to
OUT15

Output indicator

Wd m

COM0
COM0

+V
OUT0
to
OUT15

Wd m+1

COM1
COM1

App
A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-29

Appendices

Allocated
CIO word

Signal Connec- Signal
name tor pin name
+V
COM1

L
L
L
Wd m+1

L
L
L
L
L

Terminal Connections

L
Wd m

L
L
L
12 to
24 VDC

L
L

OUT15

OUT14

OUT13

9 10

OUT12

11 12

OUT11

13 14

OUT10

15 16

OUT9

17 18

OUT8

19 20

21 22

COM0

23 24

OUT15

25 26

OUT14

27 28

OUT13

29 30

OUT12

31 32

OUT11

33 34

OUT10

35 36

OUT9

37 38

OUT8

39 40

+V
COM1
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

L
L
L
L
L
L

Wd m+1

12 to
24 VDC

L
L

+V
COM0
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

L
L
L
L
L

Wd m

Allocated
CIO word

L
L
L

• When wiring, pay careful attention to the polarity of the external
power supply. The load may operate incorrectly if the polarity is
reversed.
• Be sure to wire both terminals 23 and 24 (COM0).
• Be sure to wire both terminals 3 and 4 (COM1).
• Be sure to wire both terminals 21 and 22 (+V).
• Be sure to wire both terminals 1 and 2 (+V).

A-30

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD234 Transistor Output Unit (32 Points)
Name

32-point Transistor Output Unit with MIL Connector (Sinking Outputs)

Model

CJ1W-OD234

Rated Voltage

24 VDC

Operating Load Voltage Range

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2 A/common, 4 A/Unit

Maximum Inrush Current

4.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

15 µs max.

OFF Response Time

80 µs max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

32 (16 points/common, 2 circuits)

Internal Current Consumption

220 mA max.

Fuse

None

External Power Supply

20.4 to 26.4 VDC, 110 mA min.

Weight

70 g max.

Internal circuits

Circuit Configuration

A-1 Specifications of Basic I/O Units

Signal Allocated
name
CIO word
+V
OUT0
to
Wd m
OUT15
COM0
COM0
Output indicator
SW

+V
OUT0
to
OUT15

Wd m+1

COM1
COM1

App
A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-31

Appendices

Allocated
CIO word

Signal Connec- Signal
name tor pin name

COM1

L
L
L
Wd m+1

L
L
L
L
L

Terminal Connections

L
Wd m

L
L
L
L
24 VDC

OUT15

OUT14

OUT13

9 10

OUT12

11 12

OUT11

13 14

OUT10

15 16

OUT9

17 18

OUT8

19 20

21 22

COM0

23 24

OUT15

25 26

OUT14

27 28

OUT13

29 30

OUT12

31 32

OUT11

33 34

OUT10

35 36

OUT9

37 38

OUT8

39 40

+V
COM1
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

L
L
L
L
L
L

Wd m+1

24 VDC

L
L

+V
COM0
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

L
L
L
L
L

Wd m

Allocated
CIO word

L
L
L

A-32

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD261 Transistor Output Unit (64 Points)
64-point Transistor Output Unit with Fujitsu Connectors (Sinking Outputs)

Model

CJ1W-OD261

Rated Voltage

12 to 24 VDC

Operating Load Voltage
Range

10.2 to 26.4 VDC

Maximum Load Current

0.3 A/point, 1.6 A/common, 6.4 A/Unit

Maximum Inrush Current

3.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a
leakage current of 10 mA max.

Number of Circuits

64 (16 points/common, 4 circuits)

Internal Current Consumption

5 VDC, 170 mA max.

Fuse

None

External Power Supply

10.2 to 26.4 VDC, 50 mA min.

Weight

110 g max.

Accessories

None
Signal
name

A-1 Specifications of Basic I/O Units

Name

Allocated
CIO word

Circuit Configuration

Internal circuits

Output indicator

OUT0
to
OUT15
COM0
COM0
+V
OUT0
to
OUT15
COM1
COM1
+V

Connect
or row A

CN1
Wd m+1

Connect
or row B

Wd m+2

Connect
or row A

CN2
Wd m+3

App

OUT0
to
OUT15
COM2
COM2
+V
OUT0
to
OUT15
COM3
COM3

Wd m

Connect
or row B

A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-33

Appendices

L
L
L
L
L
L

OUT14
OUT13
OUT12
OUT11
OUT10

B16 A16
B15 A15
B14 A14
B13 A13

OUT14

OUT13

OUT12

OUT11

OUT10

L
L

OUT8

B11 A11 OUT8

OUT0

A1 B1 OUT0

OUT1

A2 B2 OUT1

OUT2

A3 B3 OUT2

OUT3

A4 B4 OUT3

OUT4

A5 B5 OUT4

OUT5

A6 B6 OUT5

OUT6

A7 B7 OUT6

OUT7

A8 B8 OUT7

COM2

A9 B9

A10 B10

OUT8

A11 B11

OUT8

B9 A9

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

OUT15

B8 A8 OUT7

OUT10

B7 A7 OUT6

OUT11

B6 A6 OUT5
OUT5

OUT12

B5 A5 OUT4
OUT4

OUT13

B4 A4 OUT3
OUT3

OUT14

B3 A3 OUT2
OUT2

OUT15

OUT1 B2

COM2

OUT0 B1

A2 OUT1
A1 OUT0

12 to
24
VDC

• When wiring, pay careful attention to
the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals A9
and A19 (COM0) of CN1.
• Be sure to wire both terminals B9
and B19 (COM1) of CN1.
• Be sure to wire both terminals A10
and A20 (+V) of CN1.
• Be sure to wire both terminals B10
and B20 (+V) of CN1.

A12 B12
A13 B13
A14 B14
A15 B15
A16 B16
A17 B17
A18 B18
A19 B19
A20 B20

12 to
24
VDC

COM3

B10 A10 +V
COM0

Allocated
CIO word

OUT6

A-34

12 to
24
VDC

Signal Connec- Signal
name tor pin name
L

OUT7

L
L

Wd m+1

B17 A17

Allocated
CIO word

COM0
OUT15

B12 A12 OUT9

COM1

Terminal Connections

B18 A18

OUT9

12 to
24
VDC

B19 A19

Allocated
CIO word

Wd m+2

Wd m+1

OUT15

Signal
name

Wd m+3

COM1

B20 A20

Wd m+2

Wd m

Signal
name

Wd m

Allocated
CIO word

CN2

Wd m+3

CN1
Connector pin

COM3
+V

• When wiring, pay careful attention to
the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals A9
and A19 (COM2) of CN2.
• Be sure to wire both terminals B9
and B19 (COM3) of CN2.
• Be sure to wire both terminals A10
and A20 (+V) of CN2.
• Be sure to wire both terminals B10
and B20 (+V) of CN2.

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD263 Transistor Output Unit (64 Points)
Name

64-point Transistor Output Unit with MIL Connectors (Sinking Outputs)

Model

CJ1W-OD263

Rated Voltage

12 to 24 VDC

Operating Load Voltage
Range

10.2 to 26.4 VDC

Maximum Load Current

0.3 A/point, 1.6 A/common, 6.4 A/Unit

Maximum Inrush Current

3.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at
a leakage current of 10 mA max.

Number of Circuits

64 (16 points/common, 4 circuits)

Internal Current Consumption 170 mA max.
Fuse

None

External Power Supply

12 to 24 VDC, 50 mA min.

Weight

110 g max.
Allocated
CIO word

A-1 Specifications of Basic I/O Units

Signal
name

Circuit Configuration

Internal circuits

SW
Output indicator

OUT0
to
OUT15
COM0
COM0
+V
OUT0
to
OUT15
COM1
COM1
+V
OUT0
to
OUT15
COM2
COM2
+V
OUT0
to
OUT15
COM3
COM3

Wd m
CN1
Wd m+1

Wd m+2
CN2
Wd m+3

App
A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-35

Appendices

OUT1

OUT2

36 35

OUT3

34 33

OUT4

32 31

OUT5

30 29

OUT6

28 27

OUT7
COM0

38 37

26 25
24 23
22 21

OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15

12 to
24
VDC

L
L

OUT13
OUT12
OUT11
OUT10
OUT9

2 +V

6 OUT7 L

9 10
11 12
13 14
15 16

COM3

OUT6
OUT5
OUT4
OUT3
OUT2
OUT1

L
L
L
L
L

OUT0
L OUT8 19 20
L
+V

OUT1

18 17 OUT9 L

OUT2

16 15 OUT10 L

OUT3

14 13 OUT11 L

OUT4

12 11 OUT12 L

OUT5

10 9 OUT13 L

OUT6

OUT7

OUT14

20 19

OUT15

Allocated
CIO word

COM0

OUT0

COM1

OUT8

7 OUT14 L

5 OUT15 L

COM2

COM1
+V

12 to
24
VDC

• When wiring, pay careful attention
to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals 23
and 24 (COM0) of CN1.
• Be sure to wire both terminals 3
and 4 (COM1) of CN1.
• Be sure to wire both terminals 21
and 22 (+V) of CN1.
• Be sure to wire both terminals 1
and 2 (+V) of CN1.

A-36

+V
COM3

L
L

Wd m+2

Terminal Connections

Wd m+1

40 39

12 to
24
VDC

Wd m+3

OUT0

Signal Connec- Signal
name tor pin name

Wd m

Allocated
CIO word

L
L
12 to
24
VDC

L
L

OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT9
OUT8

17 18

Wd m+3

Signal Connec- Signal
name tor pin name

Wd m+1

Wd m

Allocated
CIO word

CN2
Allocated
CIO word

21 22 +V
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40

COM2
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2

L
L
L
L
L
L

Wd m+2

CN1

OUT1

L
OUT0

• When wiring, pay careful attention
to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals 23
and 24 (COM2) of CN2.
• Be sure to wire both terminals 3
and 4 (COM3) of CN2.
• Be sure to wire both terminals 21
and 22 (+V) of CN2.
• Be sure to wire both terminals 1
and 2 (+V) of CN2.

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD202 Transistor Output Unit (8 Points)
Name

8-point Transistor Output Unit with Terminal Block (Sourcing Outputs)

Model

CJ1W-OD202

Rated Voltage

24 VDC

Operating Load Voltage Range

20.4 to 26.4 VDC

Maximum Load Current

2 A/point, 8 A/Unit

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Load Short-circuit Protection

Detection current: 6 A min.
Automatic restart after error clearance. (Refer to page A-149.)
Detection current: 200 mA (Refer to page A-149.)

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute
at a leakage current of 10 mA max.

Number of Circuits

8 (4 points/common, 2 circuits)

Internal Current Consumption

110 mA max.

Fuse

None

External Power Supply

24 VDC, 50 mA min.

Weight

120 g max.

A-1 Specifications of Basic I/O Units

Line Disconnection Detection

Signal
name

OUT0
to

OUT3
0V

Output indicator

Short-circuit
protection

Circuit Configuration

Internal circuits

Short-circuit
protection

COM0 (+V)

COM1 (+V)
OUT4
to

OUT7
0V

ERR indicator

App

• The ERR indicator will light and the corresponding bit in A050 to A069
(Basic I/O Unit Information, two points per bit) will turn ON if an overcurrent or line disconnection is detected.

A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-37

Appendices

Signal
name

OUT0

L
L

OUT2
NC
0V
NC

Terminal Connections
L
L

OUT4
OUT6
NC
0V

Connector pin

A0
A1
A2
A3
A4
A5
A6
A7
A8

B0
B1
B2
B3
B4
B5
B6
B7
B8

Signal
name

OUT1
OUT3

L
L

NC
24 VDC

COM0 (+V)
NC
OUT5
OUT7

L
L

NC
24 VDC

COM1 (+V)

• When wiring, pay careful attention to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.

*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the
Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

A-38

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD204 Transistor Output Unit (8 Points)
Name

8-point Transistor Output Unit with Terminal Block (Sourcing Outputs)

Model

CJ1W-OD204

Rated Voltage

24 VDC

Operating Load Voltage Range

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 4.0 A/Unit

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Load Short-circuit Protection

Detection current: 0.7 to 2.5 A
Automatic restart after error clearance. (Refer to page A-149.)

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

8 (8 points/common, 1 circuit)

Internal Current Consumption

100 mA max.

Fuse

None

External Power Supply

20.4 to 26.4 VDC, 40 mA min.

Weight

120 g max.

Short-circuit
protection

Internal circuits

Circuit Configuration

OUT0
to
OUT7
0V

Output indicator
ERR indicator

• When overcurrent is detected, the ERR indicator will light, and the corresponding flag in the Basic I/O Unit Information Area (A050 to A069)
will turn ON.

A-1 Specifications of Basic I/O Units

Signal
name
COM (+V)

B0
B1
B2
B3
B4
B5
B6
B7

OUT1 L
OUT3 L
OUT5 L
OUT7 L
NC
NC
NC
NC
COM (+V)

B8
24 VDC

• When wiring, pay careful attention to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.

*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the
Unit.
Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also
treated as a 16-point I/O Unit in the I/O tables.

CJ2 CPU Unit Hardware User’s Manual

A-39

A-1-2 Basic I/O Units

Terminal Connections

L OUT0 A0
L OUT2 A1
L OUT4 A2
L OUT6 A3
NC
A4
NC
A5
NC
A6
NC
A7
0V
A8

App

Signal Connec- Signal
name tor pin name

Appendices

z CJ1W-OD212 Transistor Output Unit (16 Points)
Name

16-point Transistor Output Unit with Terminal Block (Sourcing Outputs)

Model

CJ1W-OD212

Rated Voltage

24 VDC

Operating Load Voltage Range

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 5.0 A/Unit

Maximum Inrush Current

0.1 mA max.

Leakage Current

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Load Short-circuit Protection

Detection current: 0.7 to 2.5 A
Automatic restart after error clearance. (Refer to page A-149.)

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for
1 minute at a leakage current of 10 mA max.

Number of Circuits

16 (16 points/common, 1 circuit)

Internal Current Consumption

5 VDC, 100 mA max.

External Power Supply

20.4 to 26.4 VDC, 40 mA min.

Weight

120 g max.
Signal
name

Internal circuits

Circuit Configuration

Short-circuit
protection

COM (+V)

OUT0
to

OUT15
0V

Output indicator
ERR indicator

• When overcurrent is detected, the ERR indicator will light, and the corresponding flag in the Basic I/O Unit Information Area (A050 to A069) will
turn ON.
*1

Signal
name

Terminal Connections

Connector pin

OUT0

OUT2

OUT4

OUT6

OUT8

OUT10

OUT12

OUT14
0V

A2
A3
A4
A5
A6
A7
A8

B0
B1
B2
B3
B4
B5
B6
B7
B8

Signal
name

OUT1

OUT3

OUT5

OUT7

OUT9

OUT11

OUT13

OUT15

COM (+V)
24 VDC

• When wiring, pay careful attention to the polarity of the external power
supply. The load may operate incorrectly if the polarity is reversed.

*1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the
Unit.

A-40

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD232 Transistor Output Unit (32 Points)
Name

32-point Transistor Output Unit with MIL Connector (Sourcing Outputs)

Model

CJ1W-OD232

Rated Voltage

24 VDC

Operating Load Voltage Range

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2.0 A/common, 4.0 A/Unit

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Load Short-circuit
Protection

Detection current: 0.7 to 2.5 A

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA max.

Number of Circuits

32 (16 points/common, 2 circuits)

Internal Current Consumption

5 VDC 150 mA max.

External Power Supply

20.4 to 26.4 VDC, 70 mA min.

Weight

80 g max.

Accessories

None

A-1 Specifications of Basic I/O Units

Short-circuit
protection

Automatic restart after error clearance. (Refer to page A-149.)

Signal
Allocated
name
CIO word
COM0 (+V)
COM0 (+V)
OUT0
to

Wd m

OUT15

Output indicator
Short-circuit
protection

Circuit Configuration

Internal circuits

COM1 (+V)
COM1 (+V)
OUT0
to

OUT15

Wd m+1

App

ERR indicator

CJ2 CPU Unit Hardware User’s Manual

A-41

A-1-2 Basic I/O Units

• The ERR indicator will light and the corresponding bit in A050 to A069 (Basic I/O Unit
Information, one for each common) will turn ON if an overcurrent is detected.

Appendices

Allocated
CIO word

Signal
name

Connector pin

Signal
name

Allocated
CIO word

24 VDC
2

OUT15

OUT7

OUT14

OUT6

OUT13

9 10

OUT5

OUT12

11 12

OUT4

OUT11

13 14

OUT3

OUT10

15 16

OUT2

17 18

OUT1

19 20

OUT0

21 22

COM0 (+V)

Wd m+1

L
L
L
L

OUT9
OUT8

COM0 (+V)
0V

L
L
L

Wd m

L
L
L
L
L

23 24

OUT15

25 26

OUT7

OUT14

27 28

OUT6

OUT13

29 30

OUT5

OUT12

31 32

OUT4

OUT11

33 34

OUT3

OUT10

35 36

OUT2

37 38

OUT1

39 40

OUT0

OUT9
OUT8

L
L

Wd m+1

Terminal Connections

COM1 (+V)

L
L

L
L
L
L
L
L

Wd m

COM1 (+V)

L
L

24 VDC

• When wiring, pay careful attention to the polarity of the external power supply. The
load may operate incorrectly if the polarity is reversed.
• Be sure to wire both terminals 21 and 22 (COM0 (+V)).
• Be sure to wire both terminals 1 and 2 (COM1 (+V)).
• Be sure to wire both terminals 3 and 4 (0 V).
• Be sure to wire both terminals 23 and 24 (0 V).

A-42

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-OD262 Transistor Output Unit (64 Points)
64-point Transistor Output Unit with MIL Connectors (Sourcing Outputs)

Model

CJ1W-OD262

Rated Voltage

12 to 24 VDC

Operating Load Voltage Range

10.2 to 26.4 VDC

Maximum Load Current

0.3 A/point, 1.6 A/common, 6.4 A/Unit

Maximum Inrush Current

3.0 A/point, 10 ms max.

Leakage Current

0.1 mA max.

Residual Voltage

1.5 V max.

ON Response Time

0.5 ms max.

OFF Response Time

1.0 ms max.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA max.

Number of Circuits

64 (16 points/common, 4 circuits)

Internal Current Consumption

170 mA max. (5 VDC)

Fuse

None

External Power Supply

10.2 to 26.4 VDC, 50 mA min.

Weight

110 g max.

Accessories

None
Signal
name

A-1 Specifications of Basic I/O Units

Name

Allocated
CIO word

COM0
COM0

Circuit Configuration

CN1 (OUT)

App

Internal circuits

Output indicator
Indicator switch

OUT0
to
Wd m
OUT15
0V
COM1
COM1
OUT0
to
Wd m+1
OUT15
0V
COM2
COM2
OUT0
to
Wd m+2
OUT15
0V

CJ2 CPU Unit Hardware User’s Manual

CN2 (OUT)

A-1-2 Basic I/O Units

COM3
COM3
OUT0
to
OUT15
0V

Wd m+3

A-43

Appendices

CN1

CN2
Allocated
CIO word

Signal Connec- Signal
name tor pin name

Allocated
CIO word

Signal Connec- Signal
name tor pin name

Allocated
CIO word
12 to
24 VDC

OUT2

L
L
L
L
L

38 37
36 35

OUT9

OUT10

L OUT15
L OUT14
L OUT13
L OUT12

OUT11

OUT3
34 33

OUT12

OUT4
32 31

OUT13

OUT5
30 29

OUT14

OUT6
28 27

OUT15

OUT7
26 25
0V

COM3 (+V)

L
L
L
L
L

0V
24 23

COM0 (+V)

COM0 (+V)
22 21

Terminal Connections

Wd m+1

L
L
L
L
L

OUT8
20 19

OUT1

OUT9
18 17

OUT2

OUT10
16 15
OUT11

OUT3
14 13

OUT12

OUT4
12 11

OUT13

OUT5
10

OUT14

OUT6

OUT15

OUT7

L
L
L
L
L
L
L

0V
COM1 (+V)

COM1 (+V)
12 to
24 VDC

• When wiring, pay careful attention to the
polarity of the external power supply.
The load may operate incorrectly if the
polarity is reversed.
• Be sure to wire both terminals 21 and
22 (COM0 (+V)) of CN1.
• Be sure to wire both terminals 1 and 2
(COM1 (+V)) of CN1.
• Be sure to wire both terminals 23 and
24 (0 V) of CN1.
• Be sure to wire both terminals 3 and 4
(0 V) of CN1.

A-44

Wd m+2

OUT0

Wd m+1

10
L OUT11 13
L OUT10 15
L OUT9 17
L OUT8 19
COM2 (+V)
21
0V
23
OUT15
L
25
OUT14
L
27
L OUT13 29
L OUT12 31
L OUT11 33
L OUT10 35
L OUT9 37
L OUT8 39

12
14
16
18
20
22
24
26
28
30
32
34
36
38
40

COM3 (+V)
0V
OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

Wd m+3

OUT1

12 to
24 VDC

OUT8

OUT0

L
COM2 (+V)
0V
OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

OUT0

Wd m+2

40 39

Wd m+3

OUT0

Wd m

12 to
24 VDC

• When wiring, pay careful attention to the
polarity of the external power supply.
The load may operate incorrectly if the
polarity is reversed.
• Be sure to wire both terminals 21 and
22 (COM2 (+V)) of CN2.
• Be sure to wire both terminals 1 and 2
(COM3 (+V)) of CN2.
• Be sure to wire both terminals 23 and
24 (0 V) of CN2.
• Be sure to wire both terminals 3 and 4
(0 V) of CN2.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Mixed I/O Units
z CJ1W-MD231 DC Input/Transistor Output Unit (24 VDC, 16 Inputs/16 Outputs)
Name

16-point DC Input/16-point Transistor Output Unit with Fujitsu Connectors (Sinking Outputs)

Model

CJ1W-MD231

Output section (CN1)

Input section (CN2)

Rated Voltage

12 to 24 VDC

Rated Input Voltage

24 VDC

Operating Load Voltage
Range

10.2 to 26.4 VDC

Operating Input Voltage

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2.0 A/Unit

Input Impedance

3.3 kΩ

Maximum Inrush Current

4.0 A/point, 10 ms max.

Input Current

7 mA typical (at 24 VDC)

0.1 mA max.

ON Voltage/ON Current

14.4 VDC min./3 mA min.

1.5 V max.

OFF Voltage/OFF
Current

5 VDC max./1 mA max.

Leakage Current
Residual Voltage

8.0 ms max. (Can be set to between 0 and 32 in the

ON Response Time

0.1 ms max.

OFF Response Time

0.8 ms max.

No. of Circuits

16 (16 points/common,
1 circuit)

Fuse

None

External Power Supply

12 to 24 VDC, 20 mA
min.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA
max.

ON Response Time

75% (at 24 VDC)

Signal
name

CN2 (IN)
Allocated
CIO word

Allocated
CIO word

Internal circuits

Output
indicator

Wd m

Connect
or row A

Wd m+1

Connect
or row A

3.3 kΩ

IN0
to
IN7
COM1

COM0

Input indicator

+V
Wd m

Connect
or row B

Wd m+1

3.3 kΩ

IN8
to
IN15
COM1

Circuit Configuration

A-1-2 Basic I/O Units

OUT8
to
OUT15

App

OUT0
to
OUT7

Signal
name

Internal circuits

CN1 (OUT)

470 Ω

None

16 (16 points/common, 1 circuit)

Number of Simultaneously ON Points

1000 pF

90 g max.

Accessories

No. of Circuits

470 Ω

Weight

PLC Setup.)*1

1000 pF

5 VDC 130 mA max.

8.0 ms max. (Can be set to between 0 and 32 in the
OFF Response Time

COM0

Number of simultaneously ON points

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
16 points at 33°C 16 points at 45°C
Input voltage: 24 VDC

18
16

Input voltage: 26.4 VDC

14
12

12 points at 55°C

10
8

9 points at 55°C

6
4
2
0

60 (°C)

Ambient Temperature

CJ2 CPU Unit Hardware User’s Manual

A-1 Specifications of Basic I/O Units

Internal Current Consumption

PLC Setup.)*1

A-45

Appendices

NC
+V
COM0 (0V)
L
L
L
Wd m

L
L
L

Terminal Connections
12 to
24
VDC

L
L

OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT9
OUT8

B12

A12

B11

A11

B10

A10

Allocated
CIO word

Signal
name

Allocated
CIO word

IN0

IN1

IN2

COM0 (0V)
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

IN3

Wd m+1

CN2 (IN)

Signal
name
NC

L
L

IN4
IN5

IN6

IN7

Wd m

Allocated
CIO word

Connector pin

COM1

24 VDC

Connector pin

A10 B10
A11 B11
A12 B12

Signal
name

Allocated
CIO word

IN8
IN9
IN10
IN11
IN12
IN13

Wd m+1

CN1 (OUT)
Signal
name

IN14
IN15
COM1
NC
NC
NC

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if polarity is reversed.

• When wiring, pay careful attention to the polarity of
the external power supply. The load may operate
incorrectly if polarity is reversed.

• Be sure to wire both pins A9 and B9 (COM0
(0 V)) of CN1.

• Be sure to wire both pins A9 and B9 (COM1) of
CN2, and set the same polarity for both pins.

• Be sure to wire both pins A10 and B10 (+V) of
CN1.

*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.

A-46

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-MD233 DC Input/Transistor Output Unit (24 VDC, 16 Inputs/16 Outputs)
Name

16-point DC Input/16-point Transistor Output Unit with MIL Connectors (Sinking Outputs)

Model

CJ1W-MD233

Output section (CN1)

Input section (CN2)
12 to 24 VDC

Rated Input Voltage

24 VDC

Operating Load Voltage
Range

10.2 to 26.4 VDC

Operating Input
Voltage

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2.0 A/Unit

Input Impedance

3.3 kΩ

Maximum Inrush Current

4.0 A/point, 10 ms max.

Input Current

7 mA typical (at 24 VDC)

0.1 mA max.

ON Voltage/ON
Current

14.4 VDC min./3 mA min.

1.5 V max.

OFF Voltage/OFF
Current

5 VDC max./1 mA max.

ON Response Time

0.1 ms max.

8.0 ms max. (Can be set to between 0 and 32 in the

OFF Response Time

0.8 ms max.

ON Response
Time

No. of Circuits

16 (16 points/common,
1 circuit)

Fuse

None

Rated Voltage

Leakage Current
Residual Voltage

12 to 24 VDC, 20 mA min.
External Power Supply

OFF Response
Time

PLC Setup.)*1
8.0 ms max. (Can be set to between 0 and 32 in the
PLC Setup.)*1

No. of Circuits

16 (16 points/common, 1 circuit)

Number of Simultaneously ON
Points

75% (at 24 VDC)

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA
max.

90 g max.

Accessories

None
CN1 (OUT)
Allocated
CIO word

Allocated
CIO word

Signal
name

Wd m+1

IN0
to
IN7

COM1

COM0
Input indicator
+V
Wd m+1
Wd m

Circuit Configuration

3.3 kΩ

A-1-2 Basic I/O Units

OUT8
to
OUT15

IN8
to
IN15

1000 pF

Output
indicator

Wd m

3.3 kΩ

App

Internal circuits

OUT0
to
OUT7

1000 pF

Signal
name

CN2 (IN)

Internal circuits

Weight

470 Ω

5 VDC 130 mA max.

470 Ω

Internal Current Consumption

COM1

Number of simultaneously ON points

COM0

CJ2 CPU Unit Hardware User’s Manual

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
16 points at 33°C 16 points at 45°C
18
Input voltage: 24 VDC
16

Input voltage: 26.4 VDC

14
12

12 points at 55°C

10
8

9 points at 55°C

6
4
2
0

A-1 Specifications of Basic I/O Units

Insulation Resistance

60 (°C)

Ambient Temperature

A-47

Appendices

Wd m

L
L
L
L

Terminal Connections

12 to
24 VDC

OUT1
OUT2
OUT3
OUT4
OUT5
OUT6

20 19
18 17
16 15
14 13
12 11
10

OUT7
6
L
COM0 (0V) 4
+V
2

5
3
1

OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14

CN2 (IN)
Allocated
CIO word

Allocated
CIO word

L
L
L
L
L
L
L

OUT15

L
COM0 (0V)
+V

Wd m+1

OUT0

Signal
name

Wd m

Connector pin

24 VDC

Signal Connec- Signal
name tor pin name
NC

COM1

IN15

IN7

IN14

IN6

IN13

IN5

IN12

11 12

IN4

IN11

13 14

IN3

IN10

15 16

IN2

IN9

17 18

IN1

IN8

19 20

IN0

Allocated
CIO word

Wd m+1

CN1 (OUT)
Signal
name

Allocated
CIO word

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if polarity is reversed.

• When wiring, pay careful attention to the polarity of
the external power supply. The load may operate
incorrectly if polarity is reversed.

• Be sure to wire both terminals 3 and 4 (COM0
(0 V)) of CN1.

• Be sure to wire both pins 3 and 4 (COM1) of CN2,
and set the same polarity for both pins.

• Be sure to wire both terminals 1 and 2 (+V) of
CN1.

*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.

A-48

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-MD261 DC Input/Transistor Output Unit (24 VDC 32 Inputs/32 Outputs)
Name

32-point DC Input/32-point Transistor Output Unit with Fujitsu Connectors (Sinking Outputs)

Model

CJ1W-MD261

Output section (CN1)

Input section (CN2)

Rated Voltage

12 to 24 VDC

Rated Input Voltage

24 VDC

Operating Load
Voltage Range

10.2 to 26.4 VDC

Operating Input
Voltage

20.4 to 26.4 VDC

Maximum Load
Current

0.3 A/point, 1.6 A/common, 3.2 A/Unit

Maximum Inrush
Current

3.0 A/point, 10 ms max.

Leakage Current
Residual Voltage

5.6 kΩ

Input Impedance

4.1 mA typical (at 24 VDC)

Input Current

0.1 mA max.

ON Voltage/ON Current

19.0 VDC min./3 mA min. *2

1.5 V max.

OFF Voltage/OFF
Current

5 VDC max./1 mA max.

ON Response
Time

0.5 ms max.

OFF Response
Time

1.0 ms max.

No. of Circuits

32 (16 points/common, 2 circuits)
None

OFF Response
Time

8.0 ms max. (Can be set to between 0 and 32 in

Fuse

12 to 24 VDC, 30 mA min.

No. of Circuits

32 (16 points/common, 2 circuits)

Number of Simultaneously ON Points

75% (24 points) (at 24 VDC)

External Power
Supply

8.0 ms max. (Can be set to between 0 and 32 in
ON Response Time

the PLC Setup.)*1

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA max.

Internal Current
Consumption

5 VDC 140 mA max.

Weight

110 g max.

Accessories

None

+V
OUT0

Connect
or row B

Wd
Connect m+3
or row B

IN15
COM2
COM2

IN0

to
IN15

Indicator switch
Input indicator
5.6 kΩ

35
30

Input voltage:
24 VDC

Input voltage:
26.4 VDC

12 points/
common
at 55°C

20
15

8 points/
common
at 55°C

10
5
0

60 (°C)

Ambient Temperature

A-1-2 Basic I/O Units

COM3
COM3

560 Ω

Connect
or row A

COM0
COM0

OUT15 m+1
COM1
COM1

CJ2 CPU Unit Hardware User’s Manual

Connect
or row A

5.6 kΩ

Internal circuits

Output
indicator Indicator
switch

Wd m

IN0

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
32 points at 38°C 32 points at 44°C

App

Internal circuits

to
OUT15

Signal
name

1000 pF

OUT0

Circuit Configuration

Wd
m+2

560 Ω

Allocated
CIO word

Number of simultaneously ON points

CN2 (IN)

Signal Allocated
name CIO word

1000 pF

CN1 (OUT)

A-1 Specifications of Basic I/O Units

Insulation Resistance

A-49

Appendices

Wd m+1

L
L
L
L
L

OUT14
OUT13
OUT12
OUT11
OUT10
OUT9
OUT8
+V

COM1 (0V)
L
L
L

Wd m+1

Terminal Connections

12 to
24
VDC

L
L
L
L
L

OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

B19 A19
B18 A18
B17 A17
B16 A16
B15 A15
B14 A14
B13 A13
B12 A12
B11 A11
B10 A10
B9
B8

A9
A8

B4
B3

A4
A3

IN0

COM0 (0V)
OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT9
OUT8

IN1

IN2

IN3

L
L
L
L

OUT5
OUT4
OUT3
OUT2
OUT1
OUT0

IN5
IN6
IN7
COM2

IN8

OUT6

IN4
24
VDC

IN9

COM0 (0V)
OUT7

Signal
name

IN10

L
L
L
L
L
L

12 to
24
VDC

IN11
IN12
IN13
IN14

L
L

Connector pin

A10 B10
A11 B11
A12 B12
A13 B13
A14 B14
A15 B15
A16 B16

IN15
A17
COM2
A18
NC
A19
NC
A20

B17
B18
B19
B20

Allocated
CIO word

Signal
name
IN0
IN1
IN2
IN3
IN4
IN5
IN6

24
VDC

Wd m+3

B20 A20

Allocated
CIO word

Wd m+2

OUT15

Allocated
CIO word

Wd m+2

COM1 (0V)

Connector pin

Wd m

CN2 (IN)

Wd m

Allocated
CIO word

Signal
name

IN7
COM3
IN8
IN9
IN10
IN11
IN12
IN13
IN14

Wd m+3

CN1 (OUT)
Signal
name

IN15
COM3
NC
NC

• Be sure to wire both terminals A19 and A9 (COM0 (0 V)) of
CN1.

• Be sure to wire both pins A9 and A18 (COM2) of
CN2, and set the same polarity for both pins.

• Be sure to wire both terminals B19 and B9 (COM1 (0 V)) of
CN1.

• Be sure to wire both pins B9 and B18 (COM3) of
CN2, and set the same polarity for both pins.

• Be sure to wire both terminals A20 and A10 (+V) of CN1.

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if polarity is reversed.

• Be sure to wire both terminals B20 and B10 (+V) of CN1.
• When wiring, pay careful attention to the polarity of the external power supply. The load may operate incorrectly if polarity
is reversed.

*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.
*2 Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

A-50

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-MD263 DC Input/Transistor Output Unit (24 VDC 32 Inputs/32 Outputs)
Name

32-point DC Input/32-point Transistor Output Unit with MIL Connectors (Sinking Outputs)

Model

CJ1W-MD263

Output section (CN1)

Input section (CN2)

Rated Voltage

12 to 24 VDC

Rated Input Voltage

24 VDC

Operating Load
Voltage Range

10.2 to 26.4 VDC

Operating Input
Voltage

20.4 to 26.4 VDC

Maximum Load
Current

0.3 A/point, 1.6 A/common, 3.2 A/Unit

Maximum Inrush
Current

3.0 A/point, 10 ms max.

Leakage Current
Residual Voltage

4.1 mA typical (at 24 VDC)

Input Current

0.1 mA max.

ON Voltage/ON Current

19.0 VDC min./3 mA min.*2

1.5 V max.

OFF Voltage/OFF
Current

5 VDC max./1 mA max.

ON Response
Time

0.5 ms max.

OFF Response
Time

1.0 ms max.

No. of Circuits

32 (16 points/common, 2 circuits)

Fuse

None

External Power
Supply

5.6 kΩ

Input Impedance

8.0 ms max. (Can be set to between 0 and 32 in
the PLC Setup.)*1

ON Response Time

12 to 24 VDC, 30 mA min.

8.0 ms max. (Can be set to between 0 and 32 in

OFF Response Time

the PLC Setup.)*1
32 (16 points/common, 2 circuits)

Number of Simultaneously ON Points

75% (24 points) (at 24 VDC)

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA max.

Internal Current
Consumption

5 VDC 140 mA max.

Weight

110 g max.

Accessories

None
CN2 (IN)

to
IN15

Internal circuits

OUT15

Output
indicator

COM2
COM2

COM0
COM0

Indicator
switch

to
COM1
COM1

Wd m+1

Wd m+3

to
IN15

24 VDC

Input voltage:
26.4 VDC

25
12 points/
common
at 55°C

20
15

8 points/
common
at 55°C

10
5
0

60 (°C)

Ambient Temperature

A-1-2 Basic I/O Units

OUT15

CJ2 CPU Unit Hardware User’s Manual

IN0

OUT0

Indicator switch
Input indicator
5.6 kΩ

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
32 points at 38°C 32 points at 44°C Input voltage:

App

Circuit Configuration

Wd m

Internal circuits

560 Ω

Wd m+2

OUT0

5.6 kΩ
1000 pF

IN0

560 Ω

1000 pF

Signal Allocated
name CIO word

Allocated Signal
CIO word name

Number of simultaneously ON points

CN1 (OUT)

A-1 Specifications of Basic I/O Units

No. of Circuits

COM3
COM3

A-51

Appendices

CN1 (OUT)
Allocated
CIO word

Allocated
CIO word

Signal
name

Connector pin

OUT0

40 39 OUT8
38 37 OUT9

OUT1

OUT2

OUT3

36 35 OUT10
34 33 OUT11

OUT4
OUT5

32 31 OUT12
30 29 OUT13

L
L

OUT6
OUT7

28 27 OUT14
26 25 OUT15

CN2 (IN)
Signal Connec- Signal
name tor pin name

Allocated
CIO word

OUT0

OUT1

OUT2

OUT3

IN11
IN10
IN9
IN8

NC
COM2

IN15

IN14

OUT4

16 15 OUT10
14 13 OUT11
12 11 OUT12

OUT5

10 9

OUT13

OUT6

8 7

OUT14

OUT7

6 5

OUT15

COM1

4 3

COM1

2 1

IN13
IN12
IN11
24 VDC

12 to
24 VDC

• Be sure to wire both terminals 23 and 24 (COM0) of CN1.
• Be sure to wire both terminals 3 and 4 (COM1) of CN1.
• Be sure to wire both terminals 21 and 22 (+V) of CN1.

IN10
IN9
IN8

3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40

NC
COM3
IN7
IN6
IN5
IN4
IN3
IN2

Wd m+3

IN13
IN12

Wd m+3

IN14
Wd m

IN15

1 2

IN1
IN0
NC
COM2
IN7
IN6
IN5
IN4
IN3
IN2

Wd m+2

24 23 COM0
+V
22 21
OUT8
20 19
18 17 OUT9

NC
COM3

Wd m+2

Terminal Connections

Wd m+1

COM0
+V

Wd m+1

Wd m

24 VDC
12 to
24
VDC

IN1
IN0

• Be sure to wire both pins 23 and 24 (COM2) of
CN2, and set the same polarity for both pins.

• Be sure to wire both terminals 1 and 2 (+V) of CN1.

• Be sure to wire both pins 3 and 4 (COM3) of
CN2, and set the same polarity for both pins.

• When wiring, pay careful attention to the polarity of the external power supply. The load may operate incorrectly if polarity
is reversed.

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if polarity is reversed.

*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.

A-52

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-MD232 DC Input/Transistor Output Unit (24 VDC, 16 inputs/16 Outputs)
Name

16-point DC Input/16-point Transistor Output Unit with MIL Connectors (Sourcing Outputs)

Model

CJ1W-MD232

Output section (CN1)

Input section (CN2)
24 VDC

Rated Input Voltage

24 VDC

Operating Load Voltage
Range

20.4 to 26.4 VDC

Operating Input
Voltage

20.4 to 26.4 VDC

Maximum Load Current

0.5 A/point, 2.0 A/Unit

Input Impedance

3.3 kΩ

Leakage Current

0.1 mA max.

Input Current

7 mA typical (at 24 VDC)

1.5 V max.

ON Voltage/ON
Current

14.4 VDC min./3 mA min.

0.5 ms max.

OFF Voltage/OFF
Current

5 VDC max./1 mA max.

1.0 ms max.

ON Response
Time

8.0 ms max. (Can be set to between 0 and 32 in the

Rated Voltage

Residual Voltage
ON Response Time
OFF Response Time

Load Short-circuit Protection

No. of Circuits

Detection current: 0.7 to
2.5 A min.

PLC Setup.)*1
8.0 ms max. (Can be set to between 0 and 32 in the

OFF Response
Time

Automatic restart after error
clearance. (Refer to page A149.)
16 (16 points/common,
1 circuit)

No. of Circuits

16 (16 points/common, 1 circuit)
75% (at 24 VDC)

External Power Supply

20.4 to 26.4 VDC, 40 mA
min.

Insulation Resistance

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA
max.

Weight

100 g max.

Accessories

None
CN1 (OUT)
Allocated
CIO word

Allocated Signal
CIO word name

Wd m+1

OUT0

3.3 kΩ

IN0

Wd m

to
IN7

OUT7
0V

App

Short-circuit
Protection

COM0 (+V)

1000 pF

Signal
name

CN2 (IN)

Input indicator
Output indicator

OUT15
0V

to
IN15

Wd m

470 Ω

OUT8

IN8

1000 pF

Circuit Configuration

Wd m+1

Short-circuit
Protection

COM0 (+V)

3.3 kΩ

A-1-2 Basic I/O Units

Internal circuits

COM1

Internal circuits

5 VDC 130 mA max.

470 Ω

Internal Current Consumption

CJ2 CPU Unit Hardware User’s Manual

Number of simultaneously ON points

COM1

ERR indicator

Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
16 points at 33°C
16 points at 45°C

Input voltage:
24 VDC
Input voltage:
26.4 VDC

18
16
14
12
10

12 points at 55°C

8
6

9 points at 55°C

4
2
0

A-1 Specifications of Basic I/O Units

Number of Simultaneously ON
Points

PLC Setup.)*1

(°C)

Ambient Temperature

A-53

Appendices

L
L

Wd m

L
L
L
L

Terminal Connections

24 VDC

OUT1
OUT2
OUT3
OUT4
OUT5
OUT6

20 19
18 17
16 15
14 13
12 11
10

OUT7
6
L
COM0 (+V)
4
0V
2

5
3
1

OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14

Allocated
CIO word

L
L
L
L
L
L
L

OUT15

L
COM0 (+V)
0V

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if polarity is reversed.
• Be sure to wire both terminals 3 and 4 (COM0
(+V)) of CN1.

Wd m+1

OUT0

Wd m

Allocated
CIO word

CN2 (IN)

24 VDC

Signal Connec- Signal
name
name tor pin
NC

COM1

IN15

IN7

IN14

IN6

IN13

IN5

IN12

11 12

IN4

IN11

13 14

IN3

IN10

15 16

IN2

IN9

17 18

IN1

IN8

19 20

IN0

Allocated
CIO word

Wd m+1

CN1 (OUT)
Signal Connec- Signal
name
name tor pin

• When wiring, pay careful attention to the polarity of
the external power supply. The load may operate
incorrectly if polarity is reversed.
• Be sure to wire both pins 3 and 4 (COM1) of CN2,
and set the same polarity for both pins.

• Be sure to wire both terminals 1 and 2 ((0 V)) of
CN1.

*1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.

A-54

CJ2 CPU Unit Hardware User’s Manual

Appendices

z CJ1W-MD563 TTL I/O Unit (32 Inputs/32 Outputs)
Name

32-point Input /32-point Output TTL I/O Unit with MIL Connectors

Model

CJ1W-MD563

Output section (CN1)
Rated Voltage
Operating Load Voltage
Range

Input section (CN2)
5 VDC±10%

Rated Input Voltage

4.5 to 5.5 VDC

Input Impedance

5 VDC±10%
1.1 kΩ

Maximum Load Current

35 mA/point, 560 mA/common, 1.12 A/Unit

Input Current

Leakage Current

0.1 mA max.

ON Voltage

3.0 VDC min.

Residual Voltage

0.4 V max.

OFF Voltage

1.0 VDC max.

0.2 ms max.

ON Response
Time

8.0 ms max. (Can be set to between 0 and 32 in the

ON Response Time

Approx. 3.5 mA (at 5 VDC)

PLC Setup.)*1
8.0 ms max. (Can be set to between 0 and 32 in the

OFF Response Time

0.3 ms max.

No. of Circuits

32 points (16 points/common, 2 circuits)

Fuse

None

No. of Circuits

32 points (16 points/common, 2 circuits)

5 VDC±10%, 40 mA min.
(1.2 mA × No. of ON points)

Number of Simultaneously ON
Points

100% (16 points/common)

External Power Supply
Insulation Resistance

20 MΩ between the external terminals and the GR terminal (at 100 VDC)

Dielectric Strength

1,000 VAC between the external terminals and the GR terminal for 1 minute at a leakage current of 10 mA
max.

Signal
name

CN2 (IN)
Allocated
CIO word

Allocated
CIO word

Signal
name

Wd m+2

IN0
to
IN15

Circuit Configuration

Internal circuits

5.6 kΩ

Output
indicator

OUT0
to
OUT15

Wd m

1.1 kΩ

COM2
COM2

COM0
COM0

Indicator switch
Input indicator

Indicator
switch

1.1 kΩ

+V
OUT0
to
OUT15
COM1
COM1

Wd m+3
Wd m+1

IN0
to
IN15

App

5.6 kΩ

Internal circuits

CN1 (OUT)

2.2 kΩ

None

2.2 kΩ

110 g max.

Accessories

1000 pF

Weight

1000 pF

5 VDC 190 mA max.

PLC Setup.)*1

A-1 Specifications of Basic I/O Units

Internal Current Consumption

OFF Response
Time

COM3
COM3

A-1-2 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-55

Appendices

CN1 (OUT)
Allocated
CIO word

Signal
name

Connector pin

CN2 (IN)

Signal
name

Allocated
CIO word

Signal
name

Connector pin

Signal
name

Allocated
CIO word

40 39

OUT8

OUT1

38 37

OUT9

COM3

OUT2

36 35

OUT10

IN15

OUT3

34 33

OUT11

IN14

OUT4

32 31

OUT12

IN13

OUT5

30 29

OUT13

OUT6

28 27

OUT14

OUT7

26 25

OUT15

COM0

22 21

Wd m+3

Wd m

IN12
IIN11
IN10

COM0

IN9

IN8

OUT0

20 19

OUT8

OUT1

18 17

OUT9

COM2

OUT2

16 15

OUT10

IN15

OUT3

14 13

OUT11

IN14

OUT4

12 11

OUT12

OUT5

10 9

OUT13

OUT6

OUT14

OUT7

OUT15

COM1

IN13
IN12
Wd m+2

Terminal Connections

Wd m+1

24 23

5 VDC

IN11
IN10
5 VDC

5 VDC

IN9
IN8

9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40

NC
COM3
IN7
IN6
IN5
IN4
IN3
IN2

Wd m+3

OUT0

IN1
IN0
NC
COM2
IN7
IN6
IN5
IN4
IN3
IN2

Wd m+2

Wd m+1

Wd m

5 VDC

IN1
IN0

• When wiring, pay careful attention to the polarity
of the external power supply. The load may operate incorrectly if the polarity is reversed.

• When wiring, pay careful attention to the polarity of
the external power supply. The load may operate
incorrectly if the polarity is reversed.

• Be sure to wire both terminals 23 and 24 (COM0)
of CN1.

• Be sure to wire both pins 23 and 24 (COM2) of
CN2, and set the same polarity for both pins.

• Be sure to wire both terminals 3 and 4 (COM1) of
CN1.

• Be sure to wire both pins 3 and 4 (COM3) of CN2,
and set the same polarity for both pins.

• Be sure to wire both terminals 21 and 22 (+V) of
CN1.
• Be sure to wire both terminals 1 and 2 (+V) of
CN1.

*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the response
times are set to 0 ms due to internal element delays.

A-56

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-1-3

Precautions on Contact Output Units

Service Life Expectancy of CJ1W-OC201/211 Relays
The service life expectancy of the relays (NY-24W-K-IE) in the CJ1W-OC201/211 Contact Output
Units is shown in the following diagrams. Use the diagrams to calculate the relay service life based
on the operating conditions, and replace the relay before the end of its service life.

Contact Current vs. Service Life Characteristic
Service Life with AC Load

100

240 VAC, resistive load

50
30
20

240 VAC cos φ = 0.4

10
120 VAC cos f = 0.4

24 VDC τ = 7 ms

300
200

120 VAC, resistive load

Service life (×104)

300
200

Service Life with DC Load

100
50
24 VDC, resistive load

30
20
10
5
3
2

3
2

0.2

0.3

0.5 0.7

Contact current (A)

0.1

0.2

0.3

0.5 0.7

Contact current (A)
Switching frequency: 1,800 operations/hour max.

Precautions for Correct Use
The diagrams show the life expectancy of the relay itself. Do not use a contact current, therefore,
that exceeds the maximum switching capacity specified in the specifications for each Contact
Output Unit. If a switching capacity exceeding the specifications is used, the reliability and life
expectancy of other parts will be reduced and the Unit may malfunction.

Be sure to connect a diode in parallel with every DC inductive load that is connected to the Contact
Output Unit.

Contact Protection Circuit
Arc killers are used with the Contact Output Unit in order to prolong the life of each Relay mounted
to the Contact Output Unit, prevent noise, and reduce the generation of carbide and nitrate deposits.
However, if arc killers are used incorrectly, they can reduce relay life. Using an arc killer can also
cause a delay in the resetting time (shut-off time). Arc killer circuit examples are listed in the following table.

CJ2 CPU Unit Hardware User’s Manual

A-57

A-1-3 Precautions on Contact Output Units

The life of the Relay varies with the load inductance. If any inductive load is connected to the Contact Output Unit, use an arc killer with the Contact Output Unit using an inductive load. (See next
page.)

App

Inductive Load

A-1 Specifications of Basic I/O Units

0.05

0.1

Appendices

Current

Circuit

Power
supply

Yes

Inductive load

CR
method

C
R

Characteristic

Required element

If the load is a relay or solenoid, there
is a time lag between the moment the
circuit is opened and the moment the
load is reset.

The capacitance of the capacitor must be 1 to
0.5 µF per contact current of 1 A and resistance
of the resistor must be 0.5 to 1 Ω per contact voltage of 1 V. These values, however, vary with the
load and the characteristics of the relay. Decide
these values from experiments, and take into consideration that the capacitance suppresses spark
discharge when the contacts are separated and
the resistance limits the current that flows into the
load when the circuit is closed again.

If the supply voltage is 24 or 48 V,
insert the arc killer in parallel with the
load. If the supply voltage is 100 to
200 V, insert the arc killer between the
contacts.

The dielectric strength of the capacitor must be
200 to 300 V. If the circuit is an AC circuit, use a
capacitor with no polarity.
No

Yes

Inductive load

Diode
method
Power
supply

Yes

Power
supply

Inductive load

Varistor
method

Yes

The diode connected in parallel with
the load changes energy accumulated
by the coil into a current, which then
flows into the coil so that the current
will be converted into Joule heat by the
resistance of the inductive load. This
time lag, between the moment the circuit is opened and the moment the
load is reset, caused by this method is
longer than that caused by the CR
method.

The reversed dielectric strength value of the
diode must be at least 10 times as large as the
circuit voltage value. The forward current of the
diode must be the same as or larger than the load
current.

The varistor method prevents the
imposition of high voltage between the
contacts by using the constant voltage
characteristic of the varistor. There is
time lag between the moment the circuit is opened and the moment the
load is reset.

---

The reversed dielectric strength value of the
diode may be two to three times larger than the
supply voltage if the arc killer is applied to electronic circuits with low circuit voltages.

If the supply voltage is 24 or 48 V,
insert the varistor in parallel with the
load. If the supply voltage is 100 to
200 V, insert the varistor between the
contacts.

Do not connect a capacitor as an arc killer in parallel with an inductive load
as shown in the following diagram. This arc killer is very effective for preventing spark discharge at the moment when the circuit is opened. However, when the contacts are closed, the contacts may be welded due to the
current charged in the capacitor.
DC inductive loads can be more difficult to switch than resistive loads. If
appropriate arc killers are used, however, DC inductive loads will be as easy
to switch as resistive loads.

A-58

Power
supply

Inductive load

Precautions for Correct Use

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-1-4

Connecting Connector-Terminal Block Conversion Units and I/O
Relay Terminals

Patterns for Combining Connector-Terminal Block Conversion Units
and I/O Relay Terminals
The following patterns can be used to connect Basic I/O Units with Connectors to OMRON ConnectorTerminal Block Conversion Units and I/O Relay Terminals using OMRON Connecting Cables.

z Connection Patterns for Connector-Terminal Block Conversion Units
Pattern
A

Configuration

Number of connectors
1

Connecting Cable

Branching
None

Connector-Terminal
Block Conversion Unit

40 or 60 terminals

2 branches

Connecting Cable with two branches
Connector-Terminal
Block Conversion Unit

A-1 Specifications of Basic I/O Units

20 terminals

Connecting Cable

None

Connector-Terminal
Block Conversion Unit

20 terminals

Connecting Cable
Connector-Terminal
Block Conversion Unit

40 or 60 terminals

Connecting Cable with two branches

App

40 or 60 terminals

2 branches

Connector-Terminal
Block Conversion Unit

CJ2 CPU Unit Hardware User’s Manual

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

20 terminals 20 terminals

A-59

Appendices

z Connection Patterns for I/O Relay Terminals
Pattern

Configuration

A
Connecting Cable

I/O Relay Terminal

B
I/O Relay Terminal

I/O Relay Terminal

Connecting Cable

I/O Relay Terminal

Connecting Cable

F
Connecting Cable

I/O Relay Terminal

A-60

CJ2 CPU Unit Hardware User’s Manual

Appendices

Combinations of Connections
Combinations of OMRON Connecting Cables with Connector-Terminal Block Conversion Units and I/O
Relay Terminals are shown below.

z Connections to Connector-Terminal Block Conversion Units
Refer to the pages given in the right columns for connection diagrams and details on the Connector-Terminal Block Conversion Units and Connecting Cables.
Unit
CJ1WID231

32 inputs

1 MIL connector

Connection pattern*1

NPN/PNP

Number
of
branches

Connecting
Cable

Connector-Terminal Block
Conversion Unit

Common
terminal

Connection diagram

None

XW2Z-@@@B

XW2D-40G6

None

XW2Z-@@@B

XW2D-40G6-RF*3

None

A-69

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

---

XW2Z-@@@D

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@D

XW2C-20G6-IO16 (2 Units)

Yes

A-69

XW2Z-@@@D

XW2C-20G5-IN16 (2 Units)

Yes

---

XW2Z-@@@D

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2F-20G7-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2N-20G8-IN16 (2

Units)*2

None

XW2Z-@@@K

XW2D-40G6

None

XW2Z-@@@K

XW2D-40G6-RM*3

None

XW2Z-@@@K

XW2B-40G5

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-70

XW2Z-@@@N

XW2C-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

XW2F-20G7-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

XW2N-20G8-IN16 (2 Units)*2

Yes

--A-71

Yes

---

None

A-70

---

None

XW2Z-@@@K

XW2D-40G6

None

XW2Z-@@@K

XW2D-40G6-RM*3

None

XW2Z-@@@K

XW2B-40G5

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-71

XW2Z-@@@N

XW2C-20G5-IN16 (2

Units)*2

Yes

---

XW2Z-@@@N

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

Yes

---

XW2Z-@@@N

Yes

---

XW2F-20G7-IN16 (2 Units)

XW2N-20G8-IN16 (2 Units)

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

32 inputs

1 Fujitsu
connector

Polarity

App

CJ1WID233

32 inputs

Number
of connectors

A-1 Specifications of Basic I/O Units

CJ1WID232

I/O capacity

---

For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.

The inputs are NPN. For PNP inputs, reverse the polarity of the external power supply connections to the power supply terminals on the
Connector-Terminal Block Conversion Unit.

Bleeder resistance (5.6 kΩ) is built in.

CJ2 CPU Unit Hardware User’s Manual

A-61

Appendices

Unit
CJ1WID261

CJ1WID262

CJ1WOD231

CJ1WOD232

I/O capacity
64 inputs

64 inputs

32 outputs

Number
of connectors
2 Fujitsu
connectors

2 MIL connectors

1 Fujitsu
connector

1 MIL connector

Connection pat-

Polarity

tern*1
NPN/PNP

NPN/PNP

NPN

PNP

Number
of
branches

Connecting
Cable

Connector-Terminal Block
Conversion Unit
XW2D-40G6

Common
terminal
None

Connection diagram

None

XW2Z-@@@B

None

XW2Z-@@@B

A-72

XW2D-40G6-RF

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

---

XW2Z-@@@D

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@D

XW2C-20G6-IO16 (2 Units)

Yes

A-72

XW2Z-@@@D

XW2C-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2F-20G7-IN16 (2 Units)

Yes

---

XW2Z-@@@D

XW2N-20G8-IN16 (2 Units)*2

Yes

--A-73

None

XW2Z-@@@K

XW2D-40G6

None

XW2Z-@@@K

XW2D-40G6-RM*3

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-73

XW2Z-@@@N

XW2C-20G5-IN16 (2

Units)*2

Yes

---

XW2Z-@@@N

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

Yes

---

XW2Z-@@@N

XW2N-20G8-IN16 (2 Units)

Yes

---

XW2F-20G7-IN16 (2 Units)

None

XW2Z-@@@B

XW2D-40G6

None

A-74

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

A-74

XW2Z-@@@L

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@L

XW2C-20G6-IO16 (2 Units)

Yes

A-74

XW2Z-@@@L

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@K

XW2D-40G6

None

A-75

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-75

XW2Z-@@@N

XW2F-20G7-OUT16 (2 Units)

Yes

---

*1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.
*2 The inputs are NPN. For PNP inputs, reverse the polarity of the external power supply connections to the power supply
terminals on the Connector-Terminal Block Conversion Unit.
*3 Bleeder resistance (5.6 kΩ) is built in.

A-62

CJ2 CPU Unit Hardware User’s Manual

Appendices

Unit
CJ1WOD233

CJ1WOD234

CJ1WOD261

32 outputs

64 outputs

1 MIL connector

2 Fujitsu
connectors

2 MIL connectors

Polarity

Connection pattern*1

NPN

PNP

NPN

Number
of
branches

Connecting
Cable

Connector-Terminal Block
Conversion Unit

Common
terminal

Connection diagram

None

XW2Z-@@@K

XW2D-40G6

None

A-76

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-76

XW2Z-@@@N

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@K

XW2D-40G6

None

A-77

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-77

XW2Z-@@@N

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@B

XW2D-40G6

None

A-78

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

A-78

XW2Z-@@@L

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@L

XW2C-20G6-IO16 (2 Units)

Yes

A-78

XW2Z-@@@L

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@K

XW2D-40G6

None

A-79

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-79

XW2Z-@@@N

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@K

XW2D-40G6

None

A-80

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

Yes

A-80

XW2Z-@@@N

XW2F-20G7-OUT16 (2 Units)

Yes

---

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

F
D

App

CJ1WOD263

32 outputs

Number
of connectors

A-1 Specifications of Basic I/O Units

CJ1WOD262

I/O capacity

*1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.

CJ2 CPU Unit Hardware User’s Manual

A-63

Appendices

Unit
CJ1WMD231

I/O capacity
16 inputs

16 outputs

CJ1WMD232

16 inputs

16 outputs

CJ1WMD233

16 inputs

16 outputs

CJ1WMD261

32 outputs

*1
*2
*3

Number
of connectors
1 Fujitsu
connector

1 Fujitsu
connector

Polarity

tern*1
NPN/PNP

NPN

1 MIL connector

NPN/PNP

1 MIL connector

PNP

1 MIL connector

NPN/PNP

1 MIL connector

NPN

1 Fujitsu
connector

Connection pat-

NPN/PNP

NPN

Number
of
branches

Connecting
Cable

Connector-Terminal Block
Conversion Unit

Common
terminal

Connection diagram

None

XW2Z-@@@A

XW2D-20G6

None

A-81

None

XW2Z-@@@A

XW2B-20G5

None

---

None

XW2Z-@@@A

XW2B-20G4

None

---

None

XW2Z-@@@A

XW2C-20G6-IO16

Yes

A-82

None

XW2Z-@@@A

XW2C-20G5-IN16

Yes

---

None

XW2Z-@@@A

XW2E-20G5-IN16*2

Yes

---

None

XW2Z-@@@A

XW2F-20G7-IN16

Yes

---

None

XW2Z-@@@A

XW2N-20G8-IN16*2

Yes

---

None

XW2Z-@@@A

XW2D-20G6

None

A-81

None

XW2Z-@@@A

XW2B-20G5

None

---

None

XW2Z-@@@A

XW2B-20G4

None

---

None

XW2Z-@@@A

XW2C-20G6-IO16

Yes

A-82

None

XW2Z-@@@A

XW2F-20G7-OUT16

Yes

---

None

XW2Z-@@@X

XW2D-20G6

None

A-83

None

XW2Z-@@@X

XW2B-20G5

None

---

None

XW2Z-@@@X

XW2B-20G4

None

---

None

XW2Z-@@@X

XW2D-20G6

None

A-83

None

XW2Z-@@@X

XW2B-20G5

None

---

None

XW2Z-@@@X

XW2B-20G4

None

---

None

XW2Z-@@@X

XW2D-20G6

None

A-83

None

XW2Z-@@@X

XW2B-20G5

None

---

None

XW2Z-@@@X

XW2B-20G4

None

---

None

XW2Z-@@@X

XW2D-20G6

None

A-83

None

XW2Z-@@@X

XW2B-20G5

None

---

None

XW2Z-@@@X

XW2B-20G4

None

---

None

XW2Z-@@@B

XW2D-40G6

None

A-84

None

XW2Z-@@@B

XW2D-40G6-RF*3

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

---

XW2Z-@@@D

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@D

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@D

XW2C-20G6-IO16 (2 Units)

Yes

A-85

XW2Z-@@@D

XW2C-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@D

XW2F-20G7-IN16 (2

Units)*2

Yes

---

XW2Z-@@@D

XW2N-20G8-IN16 (2 Units)*2

Yes

---

None

XW2Z-@@@B

XW2D-40G6

None

A-84

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

None

XW2Z-@@@BU

XW2D-40C6

None

---

XW2Z-@@@L

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@L

XW2C-20G6-IO16 (2 Units)

Yes

A-85

XW2Z-@@@L

XW2F-20G7-OUT16 (2 Units)

Yes

---

For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.
The inputs are NPN. For PNP inputs, reverse the polarity of the external power supply connections to the power supply terminals on the
Connector-Terminal Block Conversion Unit.
Bleeder resistance (5.6 kΩ) is built in.

A-64

CJ2 CPU Unit Hardware User’s Manual

Appendices

Unit
CJ1WMD263

I/O capacity
32 inputs

32 outputs

32 inputs

32 outputs

1 MIL connector

tern*1
NPN/PNP

NPN

NPN/PNP

NPN

Number
of
branches

Connecting
Cable

Connector-Terminal Block
Conversion Unit

Common
terminal

Connection diagram

None

XW2Z-@@@K

XW2D-40G6

None

XW2Z-@@@K

XW2D-40G6-RM*3

None

XW2Z-@@@K

XW2B-40G5

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@N

XW2C-20G6-IO16 (2 Units)

None

A-87

XW2Z-@@@N

XW2C-20G5-IN16 (2

Units)*2

Yes

---

XW2Z-@@@N

XW2E-20G5-IN16 (2 Units)*2

Yes

---

XW2Z-@@@N

Yes

---

XW2Z-@@@N

XW2N-20G8-IN16 (2 Units)

Yes

---

XW2F-20G7-IN16 (2 Units)

A-86

---

None

XW2Z-@@@B

XW2D-40G6

None

A-86

None

XW2Z-@@@B

XW2B-40G5

None

---

None

XW2Z-@@@B

XW2B-40G4

None

---

XW2Z-@@@L

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@L

XW2B-20G4 (2 Units)

None

---

XW2Z-@@@L

XW2C-20G6-IO16 (2 Units)

Yes

A-87

XW2Z-@@@L

XW2F-20G7-OUT16 (2 Units)

Yes

---

None

XW2Z-@@@K

XW2D-40G6

None

A-88

None

XW2Z-@@@K

XW2D-40G6-RM*3

None

XW2Z-@@@K

XW2B-40G5

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

None

XW2Z-@@@K

XW2D-40G6

None

A-88

None

XW2Z-@@@K

XW2B-40G5

None

---

None

XW2Z-@@@K

XW2B-40G4

None

---

XW2Z-@@@N

XW2D-20G6 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G5 (2 Units)

None

---

XW2Z-@@@N

XW2B-20G4 (2 Units)

None

---

CJ2 CPU Unit Hardware User’s Manual

A-65

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

1 MIL connector

Connection pat-

App

*1
*2

1 MIL connector

Polarity

A-1 Specifications of Basic I/O Units

CJ1WMD563

Number
of connectors

Appendices

z Connections to I/O Relay Terminals
Refer to the pages given in the right columns for connection diagrams and details on the I/O Relay Terminals and Connecting Cables.

Unit
CJ1W-ID231

I/O capacity
32 inputs

Number of
connectors

Polarity

1 Fujitsu connector

NPN

CJ1W-ID232

32 inputs

1 MIL connector

NPN

CJ1W-ID233

32 inputs

1 MIL connector

NPN

CJ1W-ID261

64 inputs

2 Fujitsu connectors

NPN

CJ1W-ID262

64 inputs

2 MIL connectors

NPN

1 Fujitsu connector

NPN

CJ1W-OD231

CJ1W-OD232

CJ1W-OD233

CJ1W-OD234

32 outputs

1 MIL connector

PNP

NPN

Connection
pattern*1

Number of
branches

Connecting
Cable

I/O Relay Terminal

G79-I@C-@

G7TC-ID16

G79-I@C-@

G7TC-IA16

G79-O@-@-D1

G7TC-ID16

G79-O@-@-D1

G7TC-IA16

G79-O@-@-D1

G7TC-ID16

G79-O@-@-D1

G7TC-IA16

G79-I@C-@

G7TC-ID16

G79-I@C-@

G7TC-IA16

G79-O@-@-D1

G7TC-ID16

G79-O@-@-D1

G7TC-IA16

G79-O@C-@

G7TC-OC16

G79-O@C-@

G7TC-OC08

Connection
diagram
A-89

A-92

G79-O@C-@

G70D-SOC16

A-91

G79-O@C-@

G70D-FOM16

--A-90

G79-O@C-@

G70D-VSOC16

G79-O@C-@

G70D-VFOM16

---

G79-O@C-@

G70A-ZOC16-3 and Relay

A-93

G79-O@C-@

G70R-SOC08

A-92

G79-O@C-@

G70D-SOC08

A-91

G79-I@-@-D1

G7TC-OC16-1

A-93

G79-O@-@-D1

G70D-SOC16-1

---

G79-O@-@-D1

G70D-FOM16-1

---

G79-O@-@-D1

G70A-ZOC16-4 and Relay

---

G79-O@-@-D1

G7TC-OC16

A-92

G79-O@-@-D1

G7TC-OC08

G79-O@-@-D1

G70D-SOC16

G79-O@-@-D1

G70D-FOM16

---

G79-O@-@-D1

G70D-VSOC16

A-90

G79-O@-@-D1

G70D-VFOM16

---

G79-O@-@-D1

G70A-ZOC16-3 and Relay

A-93

G79-O@-@-D1

G70R-SOC08

A-92

G79-O@-@-D1

G70D-SOC08

A-91
A-92

G79-O@-@-D1

G7TC-OC16

G79-O@-@-D1

G7TC-OC08

A-91

G79-O@-@-D1

G70D-SOC16

G79-O@-@-D1

G70D-FOM16

A-91

---

G79-O@-@-D1

G70D-VSOC16

A-90

G79-O@-@-D1

G70D-VFOM16

--A-93

G79-O@-@-D1

G70A-ZOC16-3 and Relay

G79-O@-@-D1

G70R-SOC08

A-92

G79-O@-@-D1

G70D-SOC08

A-91

*1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.

A-66

CJ2 CPU Unit Hardware User’s Manual

Appendices

Unit
CJ1W-OD261

CJ1W-OD262

CJ1W-OD263

64 outputs

16 inputs

16 outputs

16 inputs

16 outputs

2 MIL connectors

NPN

PNP

NPN

1 Fujitsu connector

NPN

1 Fujitsu connector

NPN

1 MIL connector

PNP

1 MIL connector

NPN

1 MIL connector

NPN

Connection
pattern*1

Number of
branches

Connecting
Cable

I/O Relay Terminal

Connection
diagram

G79-O@C-@

G7TC-OC16

G79-O@C-@

G7TC-OC08

A-92

G79-O@C-@

G70D-SOC16

G79-O@C-@

G70D-FOM16

---

G79-O@C-@

G70D-VSOC16

A-90

G79-O@C-@

G70D-VFOM16

---

G79-O@C-@

G70A-ZOC16-3 and Relay

A-93

A-91

G79-O@C-@

G70R-SOC08

A-92

G79-O@C-@

G70D-SOC08

A-91

G79-I@-@-D1

G7TC-OC16-1

A-93

G79-O@-@-D1

G70D-SOC16-1

---

G79-O@-@-D1

G70D-FOM16-1

---

G79-O@-@-D1

G70A-ZOC16-4 and Relay

---

G79-O@-@-D1

G7TC-OC16

A-92

G7TC-OC08

G79-O@-@-D1

G70D-SOC16

A-91

G79-O@-@-D1

G70D-FOM16

---

G79-O@-@-D1

G70D-VSOC16

A-90

G79-O@-@-D1

G70D-VFOM16

---

G79-O@-@-D1

G70A-ZOC16-3 and Relay

A-93

G79-O@-@-D1

G70R-SOC08

A-92

G79-O@-@-D1

G70D-SOC08

A-91
A-89

None

G79-@C

G7TC-ID16

None

G79-@C

G7TC-IA16

None

G79-@C

G7TC-OC16

None

G79-@C

G7TC-OC08

A-92

None

G79-@C

G70D-SOC16

None

G79-@C

G70D-FOM16

A-91

---

None

G79-@C

G70D-VSOC16

A-90

None

G79-@C

G70D-VFOM16

---

None

G79-@C

G70A-ZOC16-3 and Relay

A-93

None

G79-@C

G70R-SOC08

A-92

None

G79-@C

G70D-SOC08

A-91

None

G79-O@C

G7TC-OC16-1

A-93

None

G79-I@C

G70D-SOC16-1

---

None

G79-I@C

G70D-FOM16-1

---

None

G79-I@C

G70A-ZOC16-4 and Relay

---

None

G79-O@C

G7TC-ID16

A-89

None

G79-O@C

G7TC-IA16

None

G79-O@C

G7TC-OC16

None

G79-O@C

G7TC-OC08

None

G79-O@C

G70D-SOC16

None

G79-O@C

G70D-FOM16

---

None

G79-O@C

G70D-VSOC16

A-90

None

G79-O@C

G70D-VFOM16

---

None

G79-O@C

G70A-ZOC16-3 and Relay

A-93

None

G79-O@C

G70R-SOC08

A-92

None

G79-O@C

G70D-SOC08

A-91

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

CJ1W-MD233

16 outputs

2 Fujitsu connectors

Polarity

App

CJ1W-MD232

Number of
connectors

A-1 Specifications of Basic I/O Units

CJ1W-MD231

I/O capacity

A-92

A-91

*1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.

CJ2 CPU Unit Hardware User’s Manual

A-67

Appendices

Unit
CJ1W-MD261

I/O capacity
32 inputs

32 outputs

CJ1W-MD263

32 inputs

32 outputs

Number of
connectors

Polarity

1 Fujitsu connector

NPN

1 Fujitsu connector

NPN

1 MIL connector

NPN

1 MIL connector

NPN

Connection
pattern*1

Number of
branches

Connecting
Cable

I/O Relay Terminal

G79-I@C-@

G7TC-ID16

G79-I@C-@

G7TC-IA16

G79-O@C-@

G7TC-OC16

Connection
diagram
A-89

A-92

G79O@C-@

G7TC-OC08

G79-O@C-@

G70D-SOC16

A-91

G79-O@C-@

G70D-FOM16

--A-90

G79-O@C-@

G70D-VSOC16

G79-O@C-@

G70D-VFOM16

---

G79O@C-@

G70A-ZOC16-3 and Relay

A-93

G79-O@C-@

G70R-SOC08

A-92

G79-O@C-@

G70D-SOC08

A-91
A-89

G79-O@-@-D1

G7TC-ID16

G79-O@-@-D1

G7TC-IA16

G79-O@-@-D1

G7TC-OC16

G79-O@-@-D1

G7TC-OC08

A-92

G79-O@-@-D1

G70D-SOC16

G79-O@-@-D1

G70D-FOM16

A-91

---

G79-O@-@-D1

G70D-VSOC16

A-90

G79-O@-@-D1

G70D-VFOM16

--A-93

G79-O@-@-D1

G70A-ZOC16-3 and Relay

G79-O@-@-D1

G70R-SOC08

A-92

G79-O@-@-D1

G70D-SOC08

A-91

*1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections.

A-68

CJ2 CPU Unit Hardware User’s Manual

Appendices

Connector-Terminal Block Conversion Unit Connection Diagrams
The applicable terminals on the Connector-Terminal Block Conversion Unit and external connection
diagrams are provided below for Basic I/O Unit connections to Connector-Terminal Block Conversion
Units.

z Inputs
Programmable Controller I/O Unit

CJ1W-ID231

Programmable Controller
I/O Unit

CJ1W-ID231

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

XW2C-20G6-IO16 (two Units)

XW2D-40G6-RF

Connector-Terminal Block
Conversion
Unit

Connecting
Cables

XW2Z-@@@B

Connecting
Cables

XW2Z-@@@D
Wd m
(Wd (m+1))

NC
NC
COM0
15

13
12
11
10
09
08
COM0
07
06
05
04
03
02

A19
B18
A18

B16

A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

COM1

B17
A17

A10
B10
A9
B9

+
−
15

−

13
11

+
Black (White)

−

Connection
diagram

PNP

Blue (Black)

+
8

−

05
04

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

−

COM1
07

Brown (Red)

Brown (White)
2-wire sensor
(e.g., limit switch)

7
24
VDC

03
02

+
6

−
+

01
00

Black (White)

5
4

Brown (Red)
Blue (Black)

−
3

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

NPN

−

Blue (Black)
Brown (White)

2-wire sensor
(e.g., limit switch)

Note 1 The polarity for input power supply connections
indicated with dotted lines (
) can be connected in either direction provided that the same
polarity is used for the commons for rows A and B.
2 Both COM0 and COM1 have two pins each. They
are internally connected inside the PLC, but they
must all be wired.

−
+

24 VDC

Note 1 Connect the A9/B9 terminal and the
NPN.
Connect the A9/B9 terminal and the
PNP.
(Use the enclosed short bar.)

terminal for
terminal for

2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.
CJ2 CPU Unit Hardware User’s Manual

A-69

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

B19

App

24
VDC

B20
A20

−
−

A-1 Specifications of Basic I/O Units

Connection
diagram

(Short
bar)

Wd (m+1)

Wd m

Appendices

Programmable Controller I/O Unit

CJ1W-ID232

Programmable Controller I/O Unit

CJ1W-ID232

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N

XW2D-40G6-RM

Wd m
(Wd (m+1))

(Short
bar)

−
−
A10
B10
A9
B9

+
24 VDC

08
09
10
11
12
13
14
15
COM0

B20

B19

B18

B17

A20
A19
A18
A17
B16
A16
B15
A15
B14
A14
B13
A13
B12

NC
08
09
10
11
12
13
14
15
COM1

+
14

Wd m

−

13
05

+
12

Black (White)

−

COM0

A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

Connection
diagram

9
8

−

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

PNP

Blue (Black)

01
02

Brown (Red)

−

Brown (White)
2-wire sensor
(e.g., limit switch)

6
05

−

Wd (m+1)

06
07

Black (White)

+
4
3

24 VDC

Brown (Red)
Blue (Black)

−

COM1

A2
B1

−
15

A12
B11

Connection
diagram

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

NPN

−

Blue (Black)
Brown (White)

2-wire sensor
(e.g., limit switch)

−
+

Note 1 The polarity for input power supply connections
indicated with dotted lines (
) can be connected in either direction provided that the same
polarity is used for the commons.
2 Both COM0 and COM1 have two pins each. They
are internally connected inside the PLC, but they
must all be wired.

A-70

24 VDC

Note 1 Connect the A9/B9 terminal and the
NPN.
Connect the A9/B9 terminal and the
PNP.
(Use the enclosed short bar.)

terminal for
terminal for

2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-ID233

Programmable Controller I/O Unit

CJ1W-ID233

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N

XW2D-40G6-RM

Wd m
(Wd (m+1))

(Short
bar)

−
−
A10
B10
A9
B9

+
24 VDC

08
09
10
11
12
13
14
15

B19

B18

B17

A20
A19
A18
A17
B16
A16
B15
A15
B14
A14
B13
A13
B12

NC
08
09
10
11
12
13
14
15

Wd m

−

13
05

+
12

Black (White)

−

COM0

A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

Connection
diagram

9
8

−

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

PNP

Blue (Black)

01
02

Brown (Red)

−

Brown (White)
2-wire sensor
(e.g., limit switch)

6
05

−

Wd (m+1)

06
07

Black (White)

+
4
3

24 VDC

Brown (Red)
Blue (Black)

−

COM1

A2
B1

+
14

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

NPN

−

Blue (Black)

2-wire sensor
(e.g., limit switch)

−
+

CJ2 CPU Unit Hardware User’s Manual

24 VDC

Note 1 Connect the A9/B9 terminal and the
NPN.
Connect the A9/B9 terminal and the
PNP.
(Use the enclosed short bar.)

terminal for
terminal for

2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

A-71

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

Brown (White)

App

COM1

−
15

A12
B11

Connection
diagram

A-1 Specifications of Basic I/O Units

COM0

B20

Appendices

Programmable Controller I/O Unit

CJ1W-ID261

Programmable Controller I/O Unit

CJ1W-ID261

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@B

Connecting
Cables

XW2Z-@@@D

XW2D-40G6-RF

CN1
( CN2 )

(Short
bar)

CN1

Wd m
(Wd (m+2))
NC
NC
COM0
(COM2)
15
14
13
12
11
10
09

Connection
diagram

B19
A19
B18
A18
B17
A17
B16
A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10

COM0
(COM2)
07

05
24
VDC

B20
A20

04
03
02
01
00

( CN2 )

B9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

Wd m and m+1
(Wd m+2 and m+3)

−
−
A10
B10

Wd (m+1)
(Wd (m+3))

A9
B9

+
+

NC
COM1
(COM3)

−
15

+
14

−

13
12

+
Black (White)

−

Connection
diagram

COM1
(COM3)
07

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

PNP

−
9

Blue (Black)

+
8

−

Brown (White)
2-wire sensor
(e.g., limit switch)

04
03

Brown (Red)

24
VDC

02
01

−
5
4

−

Black (White)

Brown (Red)
Blue (Black)
3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

NPN

−

Blue (Black)
Brown (White)

2-wire sensor
(e.g., limit switch)

−
+

Note 1 The polarity for input power supply connections
indicated with dotted lines (
) can be connected in either direction provided that the same
polarity is used for the commons for rows A and B.
2 COM0, COM1, COM2, and COM3 have two pins
each. They are internally connected inside the
PLC, but they must all be wired.

A-72

24 VDC

Note 1 Connect the A9/B9 terminal and the
NPN.
Connect the A9/B9 terminal and the
PNP.
(Use the enclosed short bar.)

terminal for
terminal for

2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-ID262

Programmable Controller I/O Unit

CJ1W-ID262

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N

XW2D-40G6-RM

CN1
( CN2

(Short
bar)

CN1
( CN2

Wd m and m+1
(Wd m+2 and m+3)

)

−
−

)

A10
B10
A9
B9

+
+
24 VDC
08
09
10
11
12
13
14

Connection
diagram

12
13
14

B16
B15
A15
B14
A14
B13
A13
B12
B11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

COM1
(COM3)

−
15

+
14

−

Wd m
(Wd (m+2))

Black (White)

−

11
07

+
10

COM0
(COM2)

Connection
diagram

9
8

−
+
6

Brown (White)
2-wire sensor
(e.g., limit switch)

PNP

Blue (Black)

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

−

00
01

Brown (Red)

−
Wd (m+1)
(Wd (m+3))

Black (White)

+
4

Blue (Black)

−

COM1
(COM3)

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

NPN

Blue (Black)
Brown (White)

2-wire sensor
(e.g., limit switch)

−
+

Note 1 The polarity for input power supply connections
indicated with dotted lines (
) can be connected in either direction provided that the same
polarity is used for the commons.
2 COM0, COM1, COM2, and COM3 have two pins
each. They are internally connected inside the
PLC, but they must all be wired.

CJ2 CPU Unit Hardware User’s Manual

24 VDC

Note 1 Connect the A9/B9 terminal and the
NPN.
Connect the A9/B9 terminal and the
PNP.
(Use the enclosed short bar.)

terminal for
terminal for

2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

A-73

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

−

24 VDC

Brown (Red)

App

B17

A16

A11

A17

B18
A18

A12

B19

A19

COM0
(COM2)

A-1 Specifications of Basic I/O Units

B20
A20

Appendices

z Outputs
Programmable Controller I/O Unit

CJ1W-OD231

Programmable Controller I/O Unit

CJ1W-OD231

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

XW2C-20G6-IO16 (2 Units)

XW2D-40C6

ConnectorTerminal
Block Conversion Unit

Connecting
Cables

XW2Z-@@@B

Connecting
Cables

XW2Z-@@@L

XW2Z-@@@BU

Wd m
(Wd (m+1))

−
(Short bar)

Wd (m+1)

Wd m
+V
COM0

L
L

15
14

Connection
diagram

08
+V

COM0

12
to
24
VDC

COM0
(COM1)

B20
A20
B19
A19
B18
A18
B17
A17
B16
A16
B15

−
A10
B10
A9
B9

B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

(Short bar)

COM1

−

Solenoid valve, etc.

−

A15

−

Connection
diagram

COM1
07

−

06
12
to
24
VDC

−

Solenoid valve, etc.

−
+

12 to
24 VDC

Note The +V terminals and COM terminals are internally
connected inside the PLC, but they must all be wired.
Note 1 Connect the A9/B9 terminal and the
terminal.
Connect the A10/B10 terminal and the terminal.
(Use the enclosed short bar.)
2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

A-74

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-OD232

Programmable Controller I/O Unit

CJ1W-OD232

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N
Wd m
(Wd (m+1))

−

(Short bar)

−

COM0
(COM1)

A9
B9

A10
B10

24 VDC

L
L

A19

A18

COM0 (+V)

15
0V

A20
B19

B17

B16

A17
A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

L
L

Wd m

−

COM0 (+V)

−

Connection
diagram

−

6
Wd (m+1)

−

0V
03

A2
A1

−

Solenoid valve, etc.

−

(Short bar)

3
COM1
(+V)

App

COM1
(+V)

B18

B1
24 VDC

A-1 Specifications of Basic I/O Units

Connection
diagram

B20

−

Solenoid valve, etc.

−
+
24 VDC

Note The COM (+V) terminals and 0 V terminals are internally connected inside the PLC, but they must all be
wired.

Note 1 Connect the A9/B9 terminal and the
terminal.
Connect the A10/B10 terminal and the terminal.
(Use the enclosed short bar.)
2 The COM terminals are wired inside the Connector-Terminal Block Conversion Unit.

CJ2 CPU Unit Hardware User’s Manual

A-75

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

Appendices

Programmable Controller I/O Unit

CJ1W-OD233

Programmable Controller I/O Unit

CJ1W-OD233

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N
Wd m
(Wd (m+1))

−

(Short bar)

−

COM0
(COM1)

A9
B9

A10
B10
12 to
24 VDC

COM0
+V

Connection
diagram

L
L

08
09

B20
A20
B19
A19

COM1
+V

15
L

B17

B16

A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4

12
06

−

COM0

+V
00

−

Solenoid valve, etc.

−

Connection
diagram

−

Wd (m+1)

−

A2
B1
A1

14
Wd m

A17

(Short bar)

−

B18
A18

+
+

B2
12 to
24 VDC

COM1

−

Solenoid valve, etc.

−
+
12 to
24 VDC

Note The +V terminals and COM terminals are internally
connected inside the PLC, but they must all be wired.

A-76

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-OD234

Programmable Controller I/O Unit

CJ1W-OD234

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N
Wd m
(Wd (m+1))

−

(Short bar)

−

COM0
(COM1)

A9
B9

A10
B10
12 to
24 VDC

Connection
diagram

L
L

08
09

A20
B19
A19

COM1

B18

B17

B16

A18

−

A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3

12
06

−

COM0

+V
00

−

Solenoid valve, etc.

−

Wd m

A17

(Short bar)

Connection
diagram

−

Wd (m+1)

−

A2
B1
A1

COM1

−

App

+
+

B2
12 to
24 VDC

A-1 Specifications of Basic I/O Units

COM0

B20

−

Solenoid valve, etc.

−
+
12 to
24 VDC

Note The +V terminals and COM terminals are internally
connected inside the PLC, but they must all be wired.

CJ2 CPU Unit Hardware User’s Manual

A-77

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

Appendices

Programmable Controller I/O Unit

CJ1W-OD261

Programmable Controller I/O Unit

CJ1W-OD261

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@L

Connecting
Cables

XW2D-40C6

XW2Z-@@@B
XW2Z-@@@BU

CN1

Wd m
and (m+1)
(Wd (m+2)
and (m+3))

( CN2 )

(Short bar)

−
−
A10
B10

COM

+
CN1

Wd m
(Wd (m+2))
+V
COM0
(COM2)

Connection
diagram

08
+V

COM0
(COM2)
07

12 to
24
VDC

( CN2 )

B20
A20
B19
A19
B18
A18
B17
A17
B16
A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

−

Solenoid valve, etc.

−

Connection
diagram

COM1
(COM3)
07

−

(Short bar)

Wd (m+1)
(Wd (m+3))

COM1
(COM3)
15

A9
B9

−

05
12 to
24
VDC

−

Solenoid valve, etc.

−
+

Note The +V terminals and COM terminals are internally
connected inside the PLC, but they must all be wired.

12 to
24 VDC

A-78

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-OD262

Programmable Controller I/O Unit

CJ1W-OD262

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N

CN1

Wd m
and (m+1)
(Wd (m+2)
and (m+3))

( CN2 )

−
CN1

24 VDC

B19
A19

A17

A16

L
L

15
0V

COM0
(COM1)

A9
B9

B16

B15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

B17

A15

(Short bar)

Solenoid valve, etc.

Wd m
(Wd (m+2))

−

COM0 (+V)
(COM2 (+V))
00

Connection
diagram

−

Wd (m+1)
(Wd (m+3))

−

App

A2
A1

A10
B10

+
L

B18

B1
24 VDC COM1 (+V)
(COM3 (+V))

−

A-1 Specifications of Basic I/O Units

COM0 (+V)
(COM2 (+V))
08

A18

Connection
diagram

B20
A20

(Short bar)

( CN2 )

COM1 (+V)
(COM3 (+V))

2
1

Solenoid valve, etc.

−
+
24 VDC

Note The COM (+V) terminals and 0 V terminals are internally connected inside the PLC, but they must all be
wired.

CJ2 CPU Unit Hardware User’s Manual

A-79

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

−

Appendices

Programmable Controller I/O Unit

CJ1W-OD263

Programmable Controller I/O Unit

CJ1W-OD263

ConnectorTerminal
Block Conversion Unit

XW2D-40G6

ConnectorTerminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting
Cables

XW2Z-@@@K

Connecting
Cables

XW2Z-@@@N

CN1

Wd m
and (m+1)
(Wd (m+2)
and (m+3))

( CN2 )

−
CN1

( CN2

12 to
24 VDC

A19

A18

COM0
(COM2)
+V

Connection
diagram

12 to
24 VDC

B20

COM1
(COM3)
+V

A20
B19

L
L

B16

B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

A9
B9

(Short bar)

−
+

14
Wd m
(Wd (m+2))

Solenoid valve, etc.

−

Connection
diagram

−

COM0
(COM2)
+V
00

A10
B10

A15

COM0
(COM1)

B17

B15

A16

−

)

B18

A17

(Short bar)

06
Wd (m+1)
(Wd (m + 3))

COM1
(COM3)

−

Solenoid valve, etc.

−
+
12 to
24 VDC

Note The +V terminals and COM terminals are internally
connected inside the PLC, but they must all be wired.

A-80

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Inputs and Outputs
Programmable Controller I/O Unit

CJ1W-MD231

ConnectorTerminal
Block Conversion Unit

XW2D-20G6

Connecting
Cables

XW2Z-@@@A

CN1

Wd m

+V
COM (0 V)
07

L
12 to
24 VDC

02
01

B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

+V
COM (0 V)
15
14
13
12
11
10
09
08

L
L
L
L

12 to
24 VDC

L
L

A-1 Specifications of Basic I/O Units

B10
A10

(OUT)

L
L

Connection
diagram
CN2

Wd (m+1)

B10
NC
COM

06
05
04
03
02
01
00

B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

COM
15
14
13
12
11

24
VDC

10
09
08

Note 1 The polarity for input power supply connections indicated with dotted lines (
tion.

) can be connected in either direc-

2 The COM terminals are internally connected inside the PLC, but they must all be wired.

CJ2 CPU Unit Hardware User’s Manual

A-81

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

24
VDC

B9
A9

App

A10

(IN)

Appendices

Programmable Controller I/O Unit

CJ1W-MD231

Connector-Terminal
Block Conversion Unit

XW2C-20G6-IO16

Connecting Cables

XW2Z-@@@A
CN1

(Short
bar)

COM0
(COM1)

Wd m

(OUT)

CN2

−
−
A10
B10

−

A10
B10
A9
B9

+
+

(Short bar)

+
−

−
15

Solenoid valve, etc.

−

+
−

−
11

Connection diagram

−

−
5

−

Solenoid valve, etc.

Blue (Black)

2-wire sensor
(e.g., limit switch)

Brown (White)

−

−
+

24 VDC

12 to
24 VDC

Note 1 Connect the A9/B9 terminal and the
Note 1
terminal.
Connect the A10/B10 terminal and the
terminal.
(Use the enclosed short bar.)
2 The COM terminals are wired inside the
Connector-Terminal Block Conversion
Unit.

A-82

NPN

−
1

1
00

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

2
01

Brown (Red)
Blue (Black)

−

Black (White)

Brown (White)
2-wire sensor
(e.g., limit switch)

6
05

PNP

7
06

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

Blue (Black)

Brown (Red)

−

Black (White)

12
11

Wd (m+1)

−

(Short
bar)

A9
B9

(IN)

Connect the A9/B9 terminal and the
terminal for NPN.
Connect the A9/B9 terminal and the
terminal for PNP.
(Use the enclosed short bar.)

2 The COM terminals are wired inside the
Connector-Terminal Block Conversion
Unit.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-MD232

Programmable Controller I/O Unit

CJ1W-MD233

ConnectorTerminal
Block Conversion Unit

XW2D-20G6

ConnectorTerminal
Block Conversion Unit

XW2D-20G6

Connecting
Cables

XW2Z-@@@X

Connecting
Cables

XW2Z-@@@X

CN1

Wd m

(OUT)
CN1

Wd m
L
L
L
L
L
L
L
L

08
09
10
11
12
13
14
15

COM (+V)
0V

Wd (m+1)

A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

00
01
02
03
04
05
06
07

L
L

L
12 to
24
VDC

L
L
L

L
L

COM (+V)
0V

L
24 VDC

08
09
10
11
12
13
14
15

COM (0 V)

CN2

(OUT)

08
09
24 VDC
10
11
12
13

15
COM

B9
A9
B8
A8
B7

Wd (m+1)

A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

11
24
VDC

COM

B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

02
03
04
05
06
07

L
L
L
L
L

12 to
24
VDC

L
L
L

COM (0 V)
+V

CN2

B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2

00
01
02
03
04

24
VDC

05
06
07
COM

A2
B1

(IN)

Note 1 The polarity for input power supply connections
indicated with dotted lines (
) can be connected in either direction.

2 The COM terminals and 0V terminal are internally
connected inside the PLC, but they must all be
wired.

2 The COM terminals and +V terminals are internally connected inside the PLC, but they must all
be wired.

CJ2 CPU Unit Hardware User’s Manual

A-83

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

A2
B1

App

A10

Connection
diagram

B10

B10
A10

(OUT)

A-1 Specifications of Basic I/O Units

Connection
diagram

B10

Appendices

Programmable Controller I/O Unit

CJ1W-MD261

Connector-Terminal
Block Conversion Unit

XW2D-40G6

Connecting Cables

XW2Z-@@@B

XW2D-40G6RF

CN1

(OUT)

+V
COM0

B20
A20
B19
A19
B18

A17

A16

Connection diagram

+V
COM0

12 to
24 VDC

CN2

A18
B17
B16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1
A1

Wd (m+3)

+V
NC
COM1
NC
15
14
13
12
11
10
09
08

COM2

L
L
L
L

A15

06
05
04

L
L

05
12 to
24 VDC

24 VDC

04
03
02
01
00

B15

B14

B13

B12

B11
A11

COM3

B16

A12

COM2

A13

A10

B17

A14

08
COM1

B18
A18

A16

B19
A19

A20

A17

B20

(IN)

Wd (m+2)

Wd (m+1)

Wd m

B10

COM3

B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
A2
B1

07
06
05
04

24 VDC

03
02
01
00

Note The +V terminals and COM terminals are Note 1 The polarity for input power supply coninternally connected inside the PLC, but
nections indicated with dotted lines
they must all be wired.
(
) can be connected in either
direction provided that the same polarity
is used for the commons for rows A and
B.
2 Both COM2 and COM3 have two pins
each. They are internally connected
inside the PLC, but they must all be
wired.

A-84

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-MD261

Connector-Terminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting Cables

XW2Z-@@@L

XW2Z-@@@D
CN2

(Short
bar)

COM0
(COM1)

Wd m
(Wd (m+1))

(OUT)

−
−
A10
B10

CN2

−
A10
B10
A9
B9

(Short bar)

−

+
Solenoid valve, etc.

−

9
8

−

−
+

Blue (Black)
Brown (White)

2-wire sensor
(e.g., limit switch)

−

−
+

12 to 24 VDC

24 VDC

Connect the A9/B9 terminal and the
terminal for NPN.
Connect the A9/B9 terminal and the
terminal for PNP.
(Use the enclosed short bar.)

2 The COM terminals are wired inside the
Connector-Terminal Block Conversion
Unit.

A-85

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

CJ2 CPU Unit Hardware User’s Manual

NPN

2
Solenoid valve, etc.

1
00

3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

App

Brown (Red)
Blue (Black)

−

3
02

Black (White)

Brown (White)
2-wire sensor
(e.g., limit switch)

PNP

Blue (Black)

8
07

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

A-1 Specifications of Basic I/O Units

Brown (Red)

−

Connection diagram

Black (White)

−

Wd (m+2)
(Wd (m+3))

−

(Short
bar)

A9
B9

(IN)

Appendices

Programmable Controller I/O Unit

CJ1W-MD263

Connector-Terminal
Block Conversion Unit

XW2D-40G6

Connecting Cables

XW2Z-@@@K

XW2D-40G6-RM

CN1

CN2

(OUT)

(IN)

12 to
24 VDC
24 VDC

B20

A19

A18

A17

COM0
+V

Connection diagram
L

A20
B19

COM1
+V

B18

B17

A20

A19

A18

A17

L
Wd m

B16
A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3

06
07

COM0

COM2

01
02
03
04
05
06
07

A2
B1
A1

B19

B18

B17

B16

B15

B14

A15
A14
B13
A13
B12

Wd (m+1)

15
COM3

COM1

A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3

07
COM2

NC
00
01
02
03
04
05

Wd (m+3)

06
07
COM3

A2
B1

Wd (m+2)

A12
B11

NC
00

B20

A16

A3
B2

12 to
24 VDC

24 VDC

Note The +V terminals and COM terminals are Note 1 The polarity for input power supply coninternally connected inside the PLC, but
nections indicated with dotted lines
they must all be wired.
(
) can be connected in either
direction.
2 Both COM2 and COM3 have two pins
each. They are internally connected
inside the PLC, but they must all be
wired.

A-86

CJ2 CPU Unit Hardware User’s Manual

Appendices

Programmable Controller I/O Unit

CJ1W-MD263

Connector-Terminal
Block Conversion Unit

XW2C-20G6-IO16 (2 Units)

Connecting Cables

XW2Z-@@@N
CN1

(Short
bar)

COM0
(COM1)

Wd m
(Wd (m+1))

(OUT)

−
−
A10
B10
A9
B9

CN2

−

(Short
bar)

−

A10
B10
A9
B9

(Short bar)

−

+
14

Solenoid valve, etc.

−

9
8

−

Solenoid valve, etc.

Blue (Black)

2-wire sensor
(e.g., limit switch)

−

−
12 to
24 VDC

2 The COM terminals are wired inside the
Connector-Terminal Block Conversion
Unit.

24 VDC

Connect the A9/B9 terminal and the
terminal for NPN.
Connect the A9/B9 terminal and the
terminal for PNP.
(Use the enclosed short bar.)

2 The COM terminals are wired inside the
Connector-Terminal Block Conversion
Unit.

A-87

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

Note 1 Connect the A9/B9 terminal and the
Note 1
terminal.
Connect the A10/B10 terminal and the
terminal.
(Use the enclosed short bar.)

CJ2 CPU Unit Hardware User’s Manual

NPN

Brown (White)

Blue (Black)
3-wire sensor with
NPN output
(photoelectric sensor
or proximity sensor)

App

1
00

Brown (Red)

−

Black (White)

4
03

Brown (White)
2-wire sensor
(e.g., limit switch)

PNP

Blue (Black)

8
07

Blue (Black)
3-wire sensor with
PNP output
(photoelectric sensor
or proximity sensor)

A-1 Specifications of Basic I/O Units

Brown (Red)

−

Connection diagram

Black (White)

−

Wd (m+2)
(Wd (m+3))

(IN)

Appendices

Programmable Controller I/O Unit

CJ1W-MD563

Connector-Terminal
Block Conversion Unit

XW2D-40G6

Connecting Cables

XW2Z-@@@K

XW2D-40G6-RM

CN2
CN1

5 VDC

L
L
L

08
09
10

L
L
L

13
14
15

COM0
+V

Connection diagram
L
L
L
L
L

08
09
10
11
12

B20
A20
B19
A19

COM1
+V

00
01

B17

B16

A18

Wd m

A17
A16
B15
A15
B14
A14
B13
A13
B12
A12
B11
A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3

A19

A18

A17

14
15
COM2

09
10
11
12
13

Wd (m+1)

14
15

COM3

A2
B1

B20

B19

B18

B17

B16

B15

B14

B13

A16
A15
A14
A13
B12

A11
B10
A10
B9
A9
B8
A8
B7
A7
B6
A6
B5
A5
B4
A4
B3
A3
B2
B1

COM2
NC
00
01
02
03
04
05

Wd (m+3)

06
07
COM3

COM1
+V

Wd (m+2)

A12
B11

A20

COM0

B18

B2
5 VDC

(IN)

(OUT)

5 VDC

Note 1 The +V terminals and COM terminals Note 1 The COM terminals are internally conare internally connected inside the PLC,
nected inside the PLC, but they must all
but they must all be wired.
be wired.
2 The power supply voltage for the CJ1WMD563 is 5 V.

A-88

2 The power supply voltage for the CJ1WMD563 is 5 V.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Connection Diagrams for I/O Relay Terminals
Connection examples and internal connection diagrams for I/O Relay Terminals connected to Basic I/O
Units are shown below.

z Inputs
G7TC I/O Relay Terminals
G7TC-ID16

G7TC-IA16

G7TC
15

C15

C14

C13

C12

C11

C10

C0
NC

Relay side

−

PLC

−
PLC

TOP VIEW

Note 1 Inputs to the PLC Input Units and I/O Relay Terminals
use isolated contacts. “00” to “15” are the input bit
numbers for the PLC Input Unit and the input numbers
for the I/O Relay Terminal.

Note 1 Inputs to the PLC Input Units and I/O Relay Terminals
use isolated contacts. “00” to “15” are the input bit numbers for the PLC Input Unit and the input numbers for
the I/O Relay Terminal.

2 Use the G78-04 short bar to short to the common terminal.

CJ2 CPU Unit Hardware User’s Manual

A-89

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

App

C15

A-1 Specifications of Basic I/O Units

G7TC

Appendices

z Outputs
G70D-V Relay Terminals
G70D-VSOC16

G70D-VSOC16+G70D-ET

Power
supply

G70D-VSOC16

G70D-ET

A15

B15

A15

B15

A14

B14

A14

B14

A13

B13

A13

B13

A12

B12

A12

B12

A11

B11

A11

B11

A10

B10

A10

B10

Back side
24
VDC

Back
side

24
VDC

C15

C14

C13

C12

C11

C10

0
PLC

PLC

TOP VIEW

Note 1 All outputs are independent. Outputs on the PLC Output Unit and I/O Relay Terminal are isolated. “00” to
“15” are the output bit numbers for the PLC Output
Unit and the output numbers for the I/O Relay Terminal.

2 Use the G6D-4-SB short bar to short to the common
terminal.

A-90

CJ2 CPU Unit Hardware User’s Manual

Appendices

G70D Relay Terminals
G70D-SOC16

G70D-SOC08

Power
supply
G70D-SOC16

A15
A13

A14

A12

Power
supply
G70D-SOC08
07

24
VDC

L
L

A11

B4
L

A10

A-1 Specifications of Basic I/O Units

Relay side
L

PLC
L

24
VDC

Relay side
00

App

PLC

TOP VIEW

Note Every two outputs share a common. The current supplied
is 3 A per common. Outputs on the PLC Output Unit and
I/O Relay Terminal are isolated. “00” to “15” are the output bit numbers for the PLC Output Unit and the output
numbers for the I/O Relay Terminal.

Note 1 All outputs are independent. Outputs on the PLC Output Unit and I/O Relay Terminal are isolated. “00” to
“07” are the output bit numbers for the PLC Output
Unit and the output numbers for the I/O Relay Terminal.
2 Use the G6D-4-SB short bar to short to the common
terminal.

CJ2 CPU Unit Hardware User’s Manual

A-91

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

Appendices

G70R Relay Terminals

G7TC I/O Relay Terminals

G70R-SOC08

G7TC-OC16/OC08

Power
supply
G7TC

Power
supply

C15

C14

C13

C12

C11

C10

G70R-SOC08
07

B0
L
24
VDC

PLC

Relay side

PLC

TOP VIEW

Note 1 All outputs are independent. Outputs on the PLC
Output Unit and I/O Relay Terminal are isolated.
“00” to “07” are the output bit numbers for the PLC
Output Unit and the output numbers for the I/O
Relay Terminal.

Note 1 All outputs are independent. Outputs on the PLC
Output Unit and I/O Relay Terminal are isolated.
“00” to “15” are the output bit numbers for the PLC
Output Unit and the output numbers for the I/O
Relay Terminal.

2 Use the G6D-4-SB short bar to short to the common terminal.

2 The G7TC-OC08 has only 8 outputs and therefore
does not have 8 to 15 and C8 to C15.
3 Use the G78-04 short bar to short to the common
terminal.

A-92

CJ2 CPU Unit Hardware User’s Manual

Appendices

G7TC I/O Relay Terminals

G70A-ZOC16 Relay Terminal Socket

G7TC-OC16-1

G70A-ZOC16-3+G2R-1-S (16 Units)

Power
supply

G70A-ZOC16-3 + G2R-1-S (16 Units)

G7TC

C15

164
L

C14

C13

C12

C11

C10

114

81
82

74
06

71
72

64
05

61
62

54
04

51
52

44
03

41
42

34
02

31
32

24
01

21
22

14
L

App

Relay side

91
92

101
102

111
112

104

121
122

A-1 Specifications of Basic I/O Units

131
132

124

141
142

134

151
152

144

13
L

161
162

154
L

Relay side

PLC

TOP VIEW

Note 1 All outputs are independent. Outputs on the PLC
Output Unit and I/O Relay Terminal are isolated.
“00” to “15” are the output bit numbers for the PLC
Output Unit and the output numbers for the I/O
Relay Terminal.
2 Use the G78-04 short bar to short to the common
terminal.

CJ2 CPU Unit Hardware User’s Manual

TOP VIEW

Note 1 The above diagram is an example with the G2R-1S(N) mounted to the G70A-ZOC16-3.
2 All outputs are independent. Outputs on the PLC
Output Unit and I/O Relay Terminal are isolated.
“00” to “15” are the output bit numbers for the PLC
Output Unit and the output numbers for the I/O
Relay Terminal.

A-93

A-1-4 Connecting Connector-Terminal Block
Conversion Units and I/O Relay Terminals

PLC

Appendices

A-2

Dimensions

A-2-1

CJ2H CPU Units
CJ2H-CPU6@-EIP
66.2

2.7

Unit: mm

2.7

65
74.5

79.8

CJ2H-CPU6@
2.7

66.2

2.7

A-94

48.8

65
74.5

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-2-2

CJ2M CPU Units
CJ2M-CPU3@
76.2

2.7

Unit: mm

2.7

75
84.5

CJ2M-CPU1@
76.2

2.7

A-2 Dimensions

App

2.7

CJ2 CPU Unit Hardware User’s Manual

75
84.5

A-2-2 CJ2M CPU Units

A-95

Appendices

A-2-3

Power Supply Units

CJ1W-PA205R
Unit: mm

PA205R
POWER

AC100-240V
INPUT
L2/N

RUN
OUTPUT
AC240V
DC24V

65
81.6

CJ1W-PA205C
CJ1W-PA205C

Unit: mm

POWER

AC100-240V
INPUT

Years

TEST

L2/N

ALARM
OUTPUT
DC30V,50mA
NORMAL:ON
ALARM :OFF

65
81.6

A-96

CJ2 CPU Unit Hardware User’s Manual

Appendices

CJ1W-PA202
Unit: mm

PA202
POWER

AC100
-240V
INPUT
L2/N

65
81.6

CJ1W-PD025
Unit: mm

PD025
POWER

DC24V+
INPUT

A-2 Dimensions

65
81.6

App

CJ1W-PD022
POWER

65
81.6

CJ2 CPU Unit Hardware User’s Manual

A-97

A-2-3 Power Supply Units

Unit: mm

PD022

Appendices

A-2-4

Basic I/O Units

8/16-point Units with 18-terminal Terminal Blocks
Unit: mm

2.7

89
65
ID211
0

10 11 12 13 14 15

0
1
2
3
4
5

6
7
8
9
10
11
12
13
14
15
COM
COM

2.7

DC24V
7mA

32-point Units (Input Units and Output Units)
Units with Fujitsu-compatible Connector (40-pin × 1)

Unit: mm

(112.5)

2.7

66.5
65
ID231
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15

2.7

DC24V 4.1mA

Units with MIL Connector (40-pin × 1)
2 .7

83.6
65
ID231
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15

2.7

DC24V 4.1mA

1ch

A-98

0ch

CJ2 CPU Unit Hardware User’s Manual

Appendices

32-point Units (24-VDC Input/Transistor Output Units)
Units with Fujitsu-compatible Connector (24-pin × 2)

Unit: mm

(112.5)
65

2.7

66.5
31

Units with MIL Connector (20-pin × 2)
65

A-2 Dimensions

2.7

83.6
31

App

2.7

A-2-4 Basic I/O Units

CJ2 CPU Unit Hardware User’s Manual

A-99

Appendices

64-point Units (Input Units, Output Units, 24-VDC Input/Transistor
Output Units, TTL I/O Units)
Units with Fujitsu-compatible Connector (40-pin × 2)

Unit: mm

(112.5)
65

2.7

66.5
31

Units with MIL Connector (40-pin × 2)
65

2.7

83.6
31

A-100

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-2-5

I/O Control Unit and I/O Interface Unit
CJ1W-IC101
I/O Control Unit

Unit: mm

CJ1W-II101
I/O Interface Unit
(140)

(140)

II101

IC101

OUT

69.3

2.7

90
2.7

OUT

A-2-6

68
65

2.7

68
65

69.3

I/O Memory Card
Unit: mm

42.8

A-2-7

Pulse I/O Modules (CJ2M CPU Unit Only)
Unit: mm

App

66.2

2.7

A-2-5 I/O Control Unit and I/O Interface Unit

2.7

65
83.8

CJ2 CPU Unit Hardware User’s Manual

A-2 Dimensions

3.3

36.4

A-101

Appendices

A-2-8

Serial Option Boards (CJ2M-CPU3@ Only)

CP1W-CIF01 RS-232C Option Board
Unit: mm

0.15

16.5
35.9

5.1

37.3
35.9

13.5

16.5
19.7

CP1W-CIF11 RS-422A/485 Option Board
Unit: mm
0.15

16.5
35.9

8.9

37.3
35.9

13.5

15.7
16.5

CP1W-CIF12 RS-422A/485 Option Board
16.5

Unit: mm
0.15
30.3
28.2

37.3
36.4

7.9

36.4

A-102

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-3

Fatal and Non-fatal Error Details
This appendix describes the fatal and non-fatal errors that can occur in the CPU Unit.

A-3-1

Fatal Errors

Operation will stop if a fatal error occurs. Information on the fatal error is displayed on the Error Tab
Page opened from the CX-Programmer's PLC Error Window. Check the details on the error based on
the message that is displayed, and the error flags and error information in the Auxiliary Area, and take
suitable countermeasures. The following list shows the fatal errors.
Fatal error

Cycle Time Exceeded Error (0x809F)
I/O Bus Error (0x80C0 to 0x80C7, 0x80CE , or 80CF)
I/O Setting Error (0x80E0)
Too Many I/O Points Error (0x80E1)
Unit Number Duplication Error (0x80E9)
Rack Number Duplication Error (0x80EA)
Instruction error

Memory Error (0x80F1)

Indirect BCD error

Version Error (0x80F2)

Illegal access error

Memory Card Transfer Error (0x80F4)

No END error

FALS(007) Error (0xC101 to 0xC2FF)

Task error

A-3 Fatal and Non-fatal Error Details

Program Error (0x80F0)

Differentiation overflow error
Illegal instruction error
UM overflow error

App
A-3-1 Fatal Errors

CJ2 CPU Unit Hardware User’s Manual

A-103

Appendices

Table of Fatal Errors
• The table of fatal errors is arranged in ascending order of error codes.
• When two or more errors occur at the same time, the error code of the more serious error will be
recorded in A400.
• If the IOM Hold Bit hasn't been turned ON to protect I/O memory, all nonretained areas of I/O memory
will be cleared when a fatal error other than FALS(007) occurs.
• If the IOM Hold Bit is ON, the contents of I/O memory will be retained but all outputs will be turned OFF.
Error
Cycle Time
Exceeded
Error

Error
code (in
A400)
0x809F

Error flag
(Auxiliary
Area)
A401.08: Cycle
Time Exceeded
Flag

Flag and
word data
---

Probable cause
The cycle time has exceeded the
maximum cycle time (watch cycle
time) set in the PLC Setup.

Possible remedy
Change the program to reduce the cycle time or
change the maximum cycle time setting. Check the
Maximum Interrupt Task Processing Time in A440
and see if the Cycle Time Watch Time can be
changed.*2 The cycle time can be reduced by dividing unused parts of the program into tasks, jumping
unused instructions in tasks, and disabling cyclic
refreshing of Special I/O Units that don't require frequent refreshing.

I/O Bus Error

0x80C0 to
0x80C7,
0x80CE,
or 0x80CF

A401.14: I/O
Bus Error Flag

A404: I/O Bus
Error Slot and
Rack Numbers

Error has occurred in the bus line
between the CPU and I/O Units or
the End Cover is not connected to the
CPU Rack or an Expansion Rack.*1
A404.08 to A404.15 contain the error
rack number (00 to 03) in binary. 0F
hex indicates that the rack cannot be
determined.0E hex indicates the End
Cover is not connected to the CPU
Rack or an Expansion Rack.

Try turning the power OFF and ON again. If the error
isn't corrected, turn the power OFF and check cable
connections between the I/O Units and Racks and
the End Covers. Check for damage to the cable or
Units. Turn the Rack's power supply OFF and then
ON again.

*1 A404.00 to A404.07 contain the error slot number (00 to 09) in binary. “0F hex” indicates that the slot cannot be determined.
“0B hex” indicates a bus error occurred for the built-in EtherNet/IP port.
“0E hex” indicates the End Cover is not connected to the CPU Rack or an Expansion Rack.
*2 The maximum processing time for an interrupt task will not be stored in A440 if High-speed interrupt function is enabled in
the PLC Setup.

A-104

CJ2 CPU Unit Hardware User’s Manual

Appendices

Error
I/O Setting
Error

Error
code
(inA400)
0x80E0

Error flag
(Auxiliary
Area)
A401.10: I/O
Setting Error
Flag

Flag and
word data
A405.08

Probable cause

Possible remedy

The Units that are connected do not
agree with the registered I/O tables
or the number of Units that are connected does not agree with the num-

• If the number of Units is not correct, turn OFF the
power supply and correctly connect the proper
Units.

ber in the registered I/O table.*2

• With the CJ2 CPU Unit, if the I/O verification operation*1 is performed when the number of Units is
incorrect, mismatch errors will be detected for all
Units registered in the I/O tables. If this occurs
even when the number of Units is correct, it is
possible that a Unit has failed and is not being
correctly recognized. Generate new I/O tables,
and then read the I/O tables and check for Units
that are not being recognized.
• If the number of Units is correct, confirm the Unit
in discrepancy, turn OFF the power supply, and
then correct the Unit connections.
• If there is a mistake in the I/O tables, generate
new I/O tables or edit the tables to correct the mistake.

An Interrupt Input Unit has been
mounted in the wrong slot, i.e., not in
one of the following slots on the CPU
Rack, or has been registered in the
registered I/O tables in any slots
other than the following slots.

• When an Interrupt Input Unit is used, A405.08 will
turn ON if the Interrupt Input Unit is in the wrong
position or is registered in the wrong position.

• CJ2H-CPU6@-EIP: CPU Rack
slots 0 to 3

• If the Unit is mounted in a slot on the CPU Rack
that is not in the specified range, correct the I/O
tables so that the Interrupt Input Unit is correctly
registered to one of the specified slots.

Too Many I/O
Points Error

0x80E1

A401.11: Too
Many I/O
Points Flag

A407.13 to
A407.15: Too
Many I/O
Points, Details
2

Registered I/O tables for the CJ2HCPU6@-EIP or CJ2M-CPU3@ were
downloaded to the CJ2M-CPU6Å† or
CJ2M-CPU1@. Or, registered I/O
tables for the CJ2H-CPU6@ or
CJ2M-CPU1@ were downloaded to
the CJ2M-CPU6@-EIP or CJ2MCPU3@.

Delete or correct the I/O tables using the CX-Programmer.

One of the following values exceeds
the maximum or is allocated to more
than one Unit.

Correct the problem and then turn the power supply
OFF and back ON.

There are more than 32 interrupt
inputs (bits: 001).

Three or more Pulse I/O Modules were connected to a CJ2M
CPU Unit (bits: 100).

The number of Expansion Racks
exceeds the maximum (bits:
101).

More than 10 I/O Units are connected to one Rack (bits: 111).*4

Unit/Rack
Number
Duplication
Error

0x80E9

A401.13: Duplication Error
Flag

CJ2 CPU Unit Hardware User’s Manual

A410: CPU
Bus Unit
Duplicated
Number Flags

The same number has been allocated to more than one CPU Bus

A411 to A416:
Special I/O
Unit Duplicated Number Flags

The same number has been allocated to more than one Special I/O

Unit.*5

Unit.*6

Check the unit numbers, eliminate the duplications,
and turn the Rack's power supply OFF and then ON
again.
Check the unit numbers, eliminate the duplications,
and turn the Rack's power supply OFF and then ON
again.

A-105

A-3-1 Fatal Errors

The total number of I/O points
set in the I/O tables exceeds the
maximum allowed for the CPU
Unit (bits: 000)

App

A-3 Fatal and Non-fatal Error Details

• CJ2H-CPU6@ or CJ2M-CPU3@:
Slots 0 to 4 in CPU Rack

• If the Unit is connected in a slot on the CPU Rack
that is not in the specified range, move the Unit to
one of the specified CPU Rack slots.

Appendices

Error
Expansion
Rack Duplicated Rack
Number

Program Error

Error
code
(inA400)
0x80EA

0x80F0

Error flag
(Auxiliary
Area)
A401.13: Duplication Error
Flag

A401.09: Program Error Flag

Flag and
word data
A409: Expansion Rack
Duplicated
Rack Number

A294 to A299:
Program Error
Information

Probable cause
The same I/O word has been allocated to more than one Basic I/O
Unit.

Check allocations to Units on the rack number
whose bit is ON in A409.00 to A409.03. Correct the
allocations so that no words are allocated more than
once, including to Units on other Racks, and turn the
Rack's power supply OFF and then ON again.

An Expansion Rack's starting word
address exceeds CIO 0901.The corresponding bit in A409.00 to A409.03
(Racks 0 to 3) will be turned ON.

Check the first word setting for the Rack indicated in
A409.00 to A409.03 and change the setting to a
valid word address below CIO 0900 with a Programming Device (such as a CX-Programmer).

The program is incorrect. See the following rows of this table for details.
The address at which the program
stopped will be output to A298 and
A299.

Check the program using A298/A299 and the error
flags to find the mistake, and correct the program.
Correct the program and then clear the error.

A295.11: No END error

Be sure that there is an END(001) instruction at the
end of the task specified in A294 (program stop task
number).

A295.15: UM overflow error
The last address in UM (user program memory) has been exceeded.

Transfer the program again.

A295.13: Differentiation overflow
error Too many differentiated instructions have been inserted or deleted
during online editing.

Return to PROGRAM mode and transfer the program again.

A295.12: Task error
A task error has occurred. The following conditions will generate a task
error.

Check the startup cyclic task attributes. Check the
execution status of each task as controlled by
TKON(820) and TKOF(821).Make sure that all of the
task numbers specified in TKON(820), TKOF(821),
and MSKS(690) instructions have corresponding
tasks. Use MSKS(690) to mask any I/O or scheduled interrupt tasks that are not being used and that
do not have programs set for them.

There is no executable cyclic
task.

There is no task that corresponds to the interrupt that was
input. (Only when the Stop CPU
on Instruction Error parameter in
the PLC Setup is set to Stop.)

A295.10: Illegal access error
An illegal access error has occurred
and the PLC Setup has been set to
stop operation for an instruction error.
The following are illegal access
errors:

A-106

Possible remedy

Reading/writing a parameter
area.

Writing memory that is not
installed.

Writing an EM bank that is EM
file memory.

Writing to a read-only area.

Indirect DM/EM address that is
not in BCD when BCD mode is
specified.

Find the program address where the error occurred
(A298/A299) and correct the instruction.

Indirect DM/EM BCD Error Flag
(A295.09) turned ON: An indirect
DM/EM BCD error has occurred,
causing the AER Flag to turn ON.
Also, the PLC Setup has been set to
stop operation for an instruction error.

Find the program address where the error occurred
using A298/A299 and correct the indirect addressing (the indirect address or the word holding the indirect address) or change to binary mode.

Instruction Error Flag (A295.08)
turned ON: Incorrect data values
were provided in an operand when
an attempt was made to execute an
instruction, causing the ER Flag to
turn ON, and the PLC Setup has
been set to stop operation for an
instruction error.

Check the Program Error Position (A298/A299) to
find the reason that the ER Flag turned ON and correct the operand data according to the descriptions
of the instructions in the Instructions Reference
Manual (Cat. No. W474).

A295.14: Illegal instruction error
The program contains an instruction
that cannot be executed.

Retransfer the program to the CPU Unit.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Error
Memory Error

Version Error

Memory Card
Transfer Error

0x80F1

0x80F2

0x80F4

0xC101 to
0xC2FF

Error flag
(Auxiliary
Area)
A401.15: Memory Error Flag

A401.05: Version Error Flag

A401.03: Memory Card Error
Flag

A401.06: FALS
Error Flag

Flag and
word data
A403: Memory Error
Location

A293

---

Probable cause

Possible remedy

An error has occurred in memory. A
bit in A403 will turn ON to show the
location of the error as listed below.

See below.

A403.00 ON: A checksum error has
occurred in the user program memory. The power was turned OFF while
storing data to the flash memory
(backup memory).

Transfer the program again.

A403.04 ON: A checksum error has
occurred in the PLC Setup.

Clear the entire PLC Setup to 0000 and reenter the
settings.

A403.05 ON: A checksum error has
occurred in the registered I/O tables.

Initialize the registered I/O table and generate a new
I/O table.

A403.07 ON: A checksum error has
occurred in the routing tables.

Initialize the routing tables and reenter the tables.

A403.08 ON: A checksum error has
occurred in the CPU Bus Unit Setup.

Initialize the CPU Bus Unit setup and reenter the
settings.

The user program that was transferred includes functions that are not
supported by the unit version of the
CPU Unit.

• Check whether the unit version supports the user
program.

When A401.03 is ON: The contents
of the Memory Card cannot be correctly read to the CPU Unit when the
power is ON.

Check whether the files required for executing the
automatic transfer function are available.

An attempt was made to transfer a
user program (OBJ file) that includes
network symbols when the power
supply was turned ON (CJ2HCPU6@ only).

Transfer a user program (OBJ file) that does not
include network symbols.

FALS(007) has been executed in the
program. The error code in A400 will
indicate the FAL number. The leftmost digit of the code will be C and
the rightmost 3 digits of the code will
be from100 to 2FF hex and will correspond to FAL numbers 001 to 511.

Correct according to cause indicated by the FAL
number (set by user).

• Upgrade the unit version of the CPU Unit.

*1 Execute the I/O verification operation by selecting Options − Compare with Project from the I/O Table Menu of the CXProgrammer.

*4 Bits A410.00 to A410.15 correspond to unit numbers 0 to F.
*5 Bits A411.00 to A416.15 correspond to unit numbers 0 to 95.

CJ2 CPU Unit Hardware User’s Manual

A-107

A-3-1 Fatal Errors

*3 Regardless of the error that occurred, the three bits in parentheses will be stored in A407.13 to A407.15. The value will
simultaneously be stored in A407.00 to A407.12.

App

*2 The CJ1W-ID201 (8-point DC Input Unit), CJ1W-OC201 (8-point Contact Output Unit), CJ1W-IA201 (8-point AC Input
Unit), CJ1W-OA201 (8-point Triac Output Unit), and CJ1W-OD201/202/203/204 (8-point Triac Output Units) are allocated
one word each, so set them as 16-point Input Units or 16-point Output Units in the I/O tables when manually setting the
I/O tables from the CX-Programmer. An I/O setting error will occur if they are set as 8-point Input Units or 8-point Output
Units.

A-3 Fatal and Non-fatal Error Details

FALS(007)
Error

Error
code
(inA400)

Appendices

A-3-2

Non-fatal Errors

Operation continues when a non-fatal error occurs. Connect the CX-Programmer to display the error
message in the Error Log Dialog Box on the CX-Programmer.
The cause of the error can be determined from the error message and related Auxiliary Area flags and
words. The following list shows the non-fatal errors.
Non-fatal errors

Duplicated Refreshing Error (CJ1: Interrupt task error) (0x008B)
Basic I/O Error (0x009A)
PLC Setup Error (0x009B)
Backup Memory Error (0x00F1)
Tag Memory Error (0x00F2)
System Work Error (0x00F3)
Battery Error (0x00F7)
CPU Bus Unit Error (0x0200 to 0x020F)
Special I/O Unit Error (0x0300 to 0x035F or 0x03FF)
CPU Bus Unit Setting Error (0x0400 to 0x040F)
Special I/O Unit Setting Error (0x0500 to 0x055F)
FAL(006) Error (0x4104 to 0x42FF)

A-108

CJ2 CPU Unit Hardware User’s Manual

Appendices

Table of Non-fatal Errors
• The table of non-fatal errors is arranged in ascending order of error codes.
• When two or more errors occur at the same time, the error code of the more serious error will be
recorded in A400.
• When the IOM Hold Bit is set to ON, I/O memory will be retained and outputs to the Output Unit will
turn OFF.
Error
Duplicated
Refreshing
Error (CJ1:
Interrupt task
error)

Error code
(in A400)
0x008B

Error flag
(Auxiliary
Area)
A402.13: Duplicated Refresh
Error Flag

Flag and word
data
A426: Unit
number where
duplicated
refresh error
occurred

Probable cause

Possible remedy

ON when the Detect Duplicated Refresh Errors
setting in the PLC Setup is set to Detect and one
of the following occurs for the same Special I/O
Unit.

Check the program. Either disable
detection of duplicated refresh
errors in the PLC Setup or correct
the problem in the program.

• IORF(097), FIORF(225), IORD(222) or
IOWR(223) in a cyclic task are competing with
FIORF(225), IORF(097), IORD(222) or
IOWR(223) in an interrupt task.
• IORF(097), FIORF(225), IORD(222) or
IOWR(223) was executed in an interrupt task
when I/O was being refreshed.*1

0x009A

A402.12: CJseries Basic I/O
Unit Error Flag

A408: Basic I/O
Unit Error, Slot
Number

An error has occurred in a Basic I/O Unit.*2

Check the Basic I/O Unit to see
whether a fuse needs to be
replaced.

PLC Setup
Error

0x009B

A402.10: PLC
Setup Error
Flag

---

There is a setting error in the PLC Setup.

Change the indicated setting to a
valid setting.

Option Board
Error

0x00D1

A315.13 Option
Board Error
Flag
A402.00 Other
Non-fatal Error
Flag

---

The Option Board was removed while the system was operating.

Check the mating of the Option
Board connector and reconnect
the connector. If the Option Board
still fails, replace it.

Option Board failure

0x00F1

A315.15:
Backup Memory Error Flag

---

Writing to the built-in flash memory failed.

Operation may not be possible
the next time power is restored
after a power interruption.
Replace the CPU Unit.

Tag Memory

0x00F2

A315.12: Tag
Memory Error
Flag

---

An error occurred in memory where network
tags are stored.

Transfer the program again.

0x00F3

A315.04: System Work Error
Flag

---

An error occurred in the memory for online editing.

Operation may not be possible
the next time power is restored
after a power interruption. Transfer the program again.

Error*3
System Work
Error

A402.00: Other
Non-fatal Error
Flag
Battery Error

0x00F7

A402.04: Battery Error Flag

---

This error occurs when the PLC Setup has been
set to detect battery errors and the CPU Unit's
backup battery is missing or its voltage has
dropped.

Check battery and replace if necessary. Change the PLC Setup
setting if battery-free operation is
being used.

CPU Bus Unit
Error

0x0200 to
0x020F

A402.07: CPU
Bus Unit Error
Flag

A417: CPU Bus
Unit Error, Unit
Number Flags

An error occurred in a data exchange between

Check the Unit indicated in A417.
Refer to the Unit's operation manual to find and correct the cause
of the error. Restart the Unit by
toggling its Restart Bit or turn the
power OFF and ON again.
Replace the Unit if it won't restart.

Special I/O Unit
Error

0x0300 to
0x035F or
0x03FF

A402.06: Special I/O Unit
Error Flag

A418 to A423:
Special I/O Unit
Error, Unit
Number Flags

An error occurred in a data exchange between

CJ2 CPU Unit Hardware User’s Manual

the CPU Unit and a CPU Bus Unit.*4

the CPU Unit and a Special I/O Unit.*5

Check the Unit indicated in A418
to A423. Refer to the Unit's operation manual to find and correct the
cause of the error. Restart the
Unit by toggling its Restart Bit or
turn the power OFF and ON
again. Replace the Unit if it won't
restart.

A-109

App

Backup Memory Error

A-3 Fatal and Non-fatal Error Details

Basic I/O Error

Appendices

Error

Error code
(in A400)

Error flag
(Auxiliary
Area)

Flag and word
data

Probable cause

Possible remedy

CPU Bus Unit
Setting Error

0x0400 to
0x040F

A402.03: CPU
Bus Unit Setting Error Flag

A427: CPU Bus
Unit Setting
Error, Unit
Number Flags

An installed CPU Bus Unit does not match the

Special I/O Unit
Setting Error

0x0500 to
0x055F

A402.02: Special I/O Unit
Setting Error
Flag

A428 to A433:
Special I/O Unit
Setting Error,
Unit Number
Flags

An installed Special I/O Unit does not match the

Change the registered I/O table.

CPU Bus Unit registered in the I/O tables.*6

Change the registered I/O table.

Special I/O Unit registered in the I/O tables.*7
• A Unit that is specified for synchronous unit
operation does not support synchronous unit
operation. *7
• A Unit that is specified for synchronous unit

Correct the settings for synchronous unit operation in the PLC
Setup and transfer the PLC Setup
again.

operation does not exist.*7
A Synchronous Unit that is specified for synchronous unit operation is not on the CPU Rack
(the Synchronous Unit is on an Expansion
Rack).*7
FAL(006) Error

0x4101 to
0x42FF

A402.15: FAL
Error Flag

A360 to A391:
Executed FAL
Number Flags

FAL(006) has been executed in program.*8

Move the Synchronous Unit to the
CPU Rack. If I/O tables have
been registered, correct the settings in the registered I/O tables.
Correct according to cause indicated by FAL number (set by
user).

*1 If cyclic refreshing is not disabled in the PLC Setup for a Special I/O Unit and IORF(097), FIORF(225), IORD(222) or
IOWR(223) is executed for the same Special I/O Unit in an interrupt task, a duplicate refreshing status will occur and an
duplicated refreshing error will occur.
*2 A408 contains the errant rack/slot number.
*3 CJ2H-CPU6@-EIP or CJ2M-CPU3@ only.
*4 The corresponding flag in A417 is turned ON to indicate the problem Unit.
*5 The corresponding flag in A418 to A423 is turned ON to indicate the problem Unit.
*6 The corresponding flag in A427 will be ON.
*7 The corresponding flag in A428 to A433 will be ON.
*8 Executed FAL Number Flags in consecutive bits in A360 to A391 correspond to FAL numbers 001 to 511.
The error code in A400 will indicate the FAL number.
The leftmost digit of the code will be 4 and the rightmost 3 digits of the code will be from 101 to 2FF hex and will correspond to FAL numbers 001 to 511.

A-110

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-4

Connecting to a Serial Port on the
CPU Unit
This appendix provides information on configurations and wiring methods when connecting various
functionality to a serial port on a CPU Unit.

A-4-1

Serial Port Interface Types and Specifications

With the following configurations, the serial port on a CJ2 CPU Unit can be used with an RS-232C or
RS-422A/485 interface. In this appendix, serial ports on CPU Units with these interfaces are called RS232C ports and RS-422A/485 ports.
Interface
CJ2H-CPU6@(-EIP)
CJ2M-CPU1@

Not isolated

Isolated

Built into the CPU Unit as
a standard feature.

A CJ1W-CIF11 RS-422A
Converter is mounted directly
to the built-in RS-232C interface.

The built-in RS-232C interface and an NT-AL001 RS232C/RS-422A Link Adapter
are connected with a cable.

A CP1W-CIF01 RS-232C
Option Board is mounted.

A CP1W-CIF11 RS422A/485 Option Board is
mounted.

A CP1W-CIF12 RS422A/485 Option Board is
mounted.

RS-232C Interface Specifications
z CPU Unit Built-in RS-232C Interface Specifications
• Connector Pin Arrangement
Pin No.

Signal

Name

Direction

Protection earth

---

SD (TXD)

Send data

Output

RD (RXD)

Receive data

Input

RS (RTS)

Request to send

Output

CS (CTS)

Clear to send

Input

Power supply

---

DR (DSR)

Data set ready

Input

ER (DTR)

Data terminal ready

Output

SG (0 V)

Signal ground

---

Connector hood

Protection earth

---

9
5

CJ2 CPU Unit Hardware User’s Manual

A-111

App

A-4 Connecting to a Serial Port on the CPU Unit

CJ2M-CPU3@

RS-422A/485

RS-232C

Model

Appendices

z CP1W-CIF01 RS-232C Option Board Specifications
Front

Back

1. Communications status indicators
3. CPU Unit connector
COMM

2. RS-232C connector

• Connector Pin Arrangement
5

Pin No.
1
2
3
4
5
6
7
8
9
Connector hood

Signal
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
5V
DR (DSR)
ER (DTR)
SG (0 V)
FG

Name
Protection earth
Send data
Receive data
Request to send
Clear to send
Power supply
Data set ready
Data terminal ready
Signal ground
Protection earth

Direction
--Output
Input
Output
Input
--Input
Output
-----

Precautions for Safe Use
Do not use the 5-V power from pin 6 of the RS-232C port on the CPU Unit for anything but the
NT-AL001 Link Adapter, CJ1W-CIF11 RS-422A Converter, or NV3W-M@20L Programmable Terminal. The external device or the CPU Unit may be damaged.

z Communications Specifications
Item

Specification

Communications method

Half duplex

Synchronization

Start-stop

Baud rate

0.3/0.6/1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2 kbps*1

Transmission distance

15 m max.

Interface

EIA RS-232C

Protocol

Host Link, NT Link, 1:N, No-protocol, or Peripheral Bus

*1 Baud rates for the RS-232C are specified only up to 19.2 kbps. The CJ Series supports serial communications
from 38.4 kbps to 115.2 kbps, but some computers cannot support these speeds. Lower the baud rate if necessary.

A-112

CJ2 CPU Unit Hardware User’s Manual

Appendices

RS-422A/485 Interface Specifications
z CP1W-CIF11 and CP1W-CIF12 RS-422A/485 Option Board Specifications
Front

Back

1. Communications status indicators
3. CPU Unit connector
COMM

4. DIP switch for
operation settings

RDA- RDB+ SDA- SDB+ FG

2. RS-422A/485 connector

• RS-422A/485 Terminal Block
Tighten the terminal block screws
to the torque of 0.28 N·m.
RDA−

FG
A-4 Connecting to a Serial Port on the CPU Unit

RDB+ SDA− SDB+

• DIP Switch for Operation Settings

1
2
3
4
5
6

O
N

Pin
No.
1

Setting
ON
OFF
ON
OFF
ON
OFF
--ON
OFF

App

ON (both ends)
Terminating resistance setting
OFF
2
2-wire
2-wire or 4-wire setting*1
4-wire
3
2-wire
2-wire or 4-wire setting*1
4-wire
4
--Not used.
5
RS control enabled
RS control selection for RD*2
RS control disabled (Data
always received.)
6
ON
RS control enabled
RS control selection for SD*3
OFF
RS control disabled (Data
always sent.)
*1 Set both pins 2 and 3 to either ON (2-wire) or OFF (4-wire).
*2 To disable the echo-back function, set pin 5 to ON (RS control enabled).
*3 When connecting to a device on the N side in a 1: N connection with the 4-wire method,
set pin 6 to ON (RS control enabled).
Also, when connecting by the 2-wire method, set pin 6 to ON (RS control enabled).

z Converting Built-in RS-232C to RS-422A/485
When converting the RS-232C port on a CJ2 CPU Unit to RS-422A, using one of the following Link
Adapters and Conversion Units.
• CJ1W-CIF11 RS-422A Converter
The maximum distance is 50 m.
Either RS-422A or RS-485 can be used.
• NT-AL001 RS-232C/RS-422A Link Adapter
The maximum distance is 500 m.
Only RS-422A can be used.

CJ2 CPU Unit Hardware User’s Manual

A-113

Appendices

CJ1W-CIF11 RS-422A Converter
The CJ1W-CIF11 RS-422A Converter is used to convert RS-232C to RS-422A/485.
It is connected directly to the RS-232C port on a CJ2 CPU Unit.
It is not isolated, so the maximum distance for RS-422A/485 is 50 m.
Appearance

Electric Specifications
• RS-422A/485 Terminal Block

RDA−

RDB+

SDA−

SDB+

RDB+ SDA− SDB+ FG

Signal name
RDA−
RDB+
SDA−
SDB+
FG

• RS-232C Connector
RS-232C port

+5V 6
−7
−8
SG (0 V) 9

Connector pin
arrangement
1 FG
2 RD
3 SD
4 CS
5 RS

Pin No.
1
2
3
4
5
6
7, 8
9
Hood

Signal
name
FG
RD
SD
CS
RS
+5 V
NC
SG (0 V)
NC*

* The hood will have the same electric potential as the connector hood where it is connected.

DIP Switch Settings
Pin No.
1

Setting
Terminating resistance setting

2-wire/4-wire setting*1

2-wire/4-wire setting*1
Not used.

4
5
6

ON
Connects terminating resistance on
both ends of the transmission path.
2-wire

OFF
Disconnects terminating
resistance.
4-wire

2-wire

4-wire

RS control selection for RD

--RS control enabled

RS control selection for SD*3

RS control enabled

--RS control disabled (Data
always received.)
RS control disabled (Data
always sent.)

*1 Set both pins 2 and 3 to either ON (2-wire) or OFF (4-wire).
*2 To disable the echo-back function, set pin 5 to ON (RS control enabled).
*3 When connecting to a device on the N side in a 1: N connection with the 4-wire method, set pin 6 to ON (RS
control enabled).
Also, when connecting by the 2-wire method, set pin 6 to ON (RS control enabled).

A-114

CJ2 CPU Unit Hardware User’s Manual

Appendices

Dimensions (Unit: mm)
38.8

18.2

34.0

5.8

NT-AL001 RS-232C/RS-422A Link Adapter
The NT-AL001 RS-232C/RS-422A Link Adapter is used to connect to devices that have RS-232C or
RS-422A terminals. It is connected with a cable to the RS-232C port on a CJ2 CPU Unit. It is isolated, so the maximum distance for RS-422A is 500 m.
Appearance

There is a DIP switch on the NT-AL001 RS-232C/RS-422A Link Adapter that is used to set RS422A/485 communications parameters. Set the DIP switch as required for the serial communications mode according to the following table.
Pin

Not used. (Leave set to ON.)
Internal terminating resistance setting.

Default
setting
ON
ON

ON: Terminating resistance connected.

5
6

OFF: Terminating resistance not connected.
2-wire/4-wire setting
Both pins ON: 2-wire communications
Both pins OFF: 4-wire communications
Communications mode*
Both pins OFF: Always send.

OFF
OFF

A-4-1 Serial Port Interface Types and
Specifications

3
4

ON
OFF

5 OFF/6 ON: Send when RS-232C's CS is high.
5 ON/6 OFF: Send when RS-232C's CS is low.
* When connecting to a CJ-series CPU Unit, turn OFF pin 5 and turn ON pin 6.

CJ2 CPU Unit Hardware User’s Manual

App

1
2

Function

A-4 Connecting to a Serial Port on the CPU Unit

DIP Switch Settings

A-115

Appendices

Application Example
CJ2M CPU Unit
Built-in RS-232C port or
RS-232C Option Board

Pin Signal
No. name

NT-AL001 RS-232C/RS-422A Link Adapter
RS-232C

Pin Signal
No. name
RD
3
SD
2
RS
4
CS
5
+5V
6
DR
7
ER
8
SG
9
Shell FG

2
SD
3
RD
4
RS
5
CS
6
+5V
7
DR
8
ER
9
SG
Shell FG

Signal Pin
name No.
4
SDA
3
SDB
6
RDA
RDB
5
1
GRD

External device
RS-422

Shield

Signal
name
RDA
RDB
SDA
SDB

External device

Signal
name
RDA
RDB
SDA
SDB

(See note.)

Note Use the special cables for the above cables.

Use the following Cables to connect the RS-232C port on an Option Board to an NT-AL001 RS232C/RS-422A Link Adapter.
Length
70 cm
2m

Model
XW2Z-070T-1
XW2Z-200T-1

Wiring the Recommended Cable (XW2Z-070T-1/XW2Z-200T-1)
Wiring with XW2Z-@@0T-1 (10 conductors)
PLC

NT-AL001 (inside NT-AL001)

Pin Signal
No. name
1
FG
2
SD
3
RD
4
RS
5
CS
6
+5V
7
DR
8
ER
9
SG
Shell FG

Signal
name
Not
used.

RD
SD
RS
CS
+5V
DR
ER
SG
FG

Pin
No.
1
Arrows indicate signal directions
3
2
4
5
Returned
6
7
8
Returned
9
Shell

Shield

Note The shell (FG) is internally connected to the protective earth (GR) terminal on the CPU Unit. FG can thus be
connected by connecting the protective earth (GR) terminal on the Power Supply Unit.

Precautions for Correct Use
• The XW2Z-@@0T-1 Cable is designed to connect the NT-AL001 and contains special wiring for
the DS and RS signals. Do not use this cable for any other application. Connecting this cable
to other devices can damage them.
• Always turn ON the terminating resistance on the ends of the RS-422A/485 line.

A-116

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-4-2

Connection Examples

This section provides connection examples and corresponding connection diagrams.
Refer to A-4-3 Applicable Connectors and Recommended Cables for actual wiring methods.

Host Computer (Host Link or Tool Bus)
Note Connections to a computer running the CX-Programmer are the same as those shown here.

z 1:1 Connections via RS-232C Port
RS-232C
port
RS-232C

Note The maximum cable length for an RS-232C connection is 15 m. RS-232C communications specifications,
however, do not cover transmissions at 19.2 Kbps. Refer to documentation of the device being connected
when using this baud rate.

Connection Example for the Host Link Serial Communications Mode
A-4 Connecting to a Serial Port on the CPU Unit

IBM PC/AT or compatible

CPU Unit
Signal Pin
name No.

FG 1
SD 2
RD 3
RS-232C
4
interface RS
CS 5
5V 6
DR 7
ER 8
SG 9
D-sub, 9-pin
connector (male)

Pin Signal
No. name

1 CD
2 RD
3 SD
4 ER RS-232C
5 SG interface
6 DR
7 RS
8 CS
9
CI
D-sub, 9-pin
connector (female)

Connection Example for the Peripheral Bus (Toolbus) Serial Communications Mode
IBM PC/AT or compatible

CPU Unit
Signal Pin
name No.

D-sub, 9-pin
connector (male)

CJ2 CPU Unit Hardware User’s Manual

1
2
3
4
5
6
7
8
9

CD
RD
SD
ER
SG
DR
RS
CS
CI

RS-232C
interface

A-4-2 Connection Examples

1
2
3
4
5
6
7
8
9

App

RS-232C
interface

FG
SD
RD
RS
CS
5V
DR
ER
SG

Pin Signal
No. name

D-sub, 9-pin
connector (female)

A-117

Appendices

z 1:N Connections via RS-232C Port
A connection example for converting between RS-232C and RS-422A/485 to use 1:N connections is
shown below.
RS-232C
NT-AL001
terminating
resistance ON,
5-V power
required

RS-422A/485

NT-AL001
Terminating resistance ON

RS-232C

RS-232C ports

NT-AL001 Link Adapter

Personal Computer

Shield NT-AL001 Link Adapter
Pin Signal
Signal Pin
Signal
name No.
name RS-232C No. name
1
FG
NC
GRD 1
2
2
SD
SD
SG
3
RD
RD
SDB 3
RS-232C
4
RS
RS
SDA 4
Interface
5
CS
CS
RDB 5
6
5V
RDA 6
7
DR
DR
CSB 7
8
ER
ER
CSA 8
9
SG
SG
RS-232
RS-422

(+)
5-V
power (–)
*2

RS-422A

Terminal block
D-sub, 9-pin
connector (male)

DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF

CPU Unit

Signal Pin RS-232C Pin Signal
No. name
name No.
*1
1
1
FG
NC
2
2
SD
SD
3
3
RD
RD
RS-232C
4
4
RS
RS
Interface
5
5
CS
CS
6
6
5V
5V
*2
7
7
DR
DR
8
8
ER
ER
9
9
SG
SG
RS-422
RS-232
D-sub, 9-pin connector
DIP Switch Settings
(male)
Pin 1: ON
Pin 2: OFF
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: ON
Pin
No.
1
2
3
4
5
6
7
8

Signal
name
GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

NT-AL001 Link Adapter

Serial Communications Board/Unit

Signal Pin RS-232C Pin Signal
Pin Signal
name No.
No. name
No. name
*1
1
1
FG
1
NC
GRD
2
2
SD
2
SD
SG
3
3
RD
3
RD
SDB
RS-232C
4
4
RS
4
RS
SDA
Interface
5
5
CS
5
CS
RDB
6
6
5V
6
5V
RDA
7
7
DR
7
DR
CSB
*2
8
8
ER
8
ER
CSA
9
9
SG
SG
RS-422
RS-232
D-sub, 9-pin connector
(male)
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: ON

*1 We recommend using the following NT-AL001 RS-232C/RS-422A Link Adapter Connecting Cables to connect
to NT-AL001 Link Adapters.
XW2Z-070T-1: 0.7 m
XW2Z-200T-1: 2 m
• Wiring the Recommended Cable (XW2Z-070/200T-1)
The recommended cables should be wired as shown below. For an RS-232C cable, each signal wire
should be twisted with the SG (signal ground) wire and placed in a shielded cable to prevent the effects of
noise in noise-prone environments. The 5-V wires can also be twisted with the SG wire to increase noise
immunity. Although this wiring is different from that shown in the example above, it can be used to
increase noise immunity if required.

A-118

CJ2 CPU Unit Hardware User’s Manual

Appendices

Wiring with XW2Z-@@0T-1 (10 conductors)
NT-AL001

PLC
Pin Signal
No. name
FG
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
Shell FG

Signal
name
Not
used.

RD
SD
RS
CS
5V
DR
ER
SG
FG

Pin
No.
1
3
2
4
5
6
7
8
9
Shell

Internal signals
Arrows indicate signal directions

Returned

Shield

*2 When the NT-AL001 Link Adapter is connected to the RS-232C port on the CPU Unit, 5 V is supplied from pin
6, eliminating the need for a 5-V power supply.

Precautions for Correct Use
• Do not use the 5-V power from pin 6 of the RS-232C port for anything but the NT-AL001 Link
Adapter, CJ1W-CIF11 RS-422A Converter, or NV3W-M@20L Programmable Terminals. Using
this power supply for any other external device may damage the CPU Unit or the external
device.

DIP Switch Settings on the NT-AL001 Link Adapter
There is a DIP switch on the NT-AL001 Link Adapter that is used to set RS-422A/485 communications
parameters. Set the DIP switch as required for the serial communications mode according to the following table.
Pin

Function

Default setting

Not used. (Leave set to ON.)

Internal terminating resistance setting.

ON: Terminating resistance connected.
OFF: Terminating resistance not connected.
3

2-wire/4-wire setting

OFF

Both pins ON: 2-wire communications

OFF

Communications mode

Both pins OFF: Always send.

OFF

App

Both pins OFF: 4-wire communications

5 OFF/6 ON: Send when RS-232C's CS is high.
5 ON/6 OFF: Send when RS-232C's CS is low.

CJ2 CPU Unit Hardware User’s Manual

A-4 Connecting to a Serial Port on the CPU Unit

• The XW1Z-@@0T-1 Cable is designed to connect the NT-AL001 and contains special wiring for
the CS and RS signals. Do not use this cable for any other application. Connecting this cable
to other devices can damage them.

A-119

Appendices

z RS-422A/485 Ports with 1:1 Connection
CPU Unit
Personal Computer
Signal
name

RS-232C
Interface

FG
SD
RD
RS
CS
DR
ER
SG

NT-AL001 Link Adapter

Shield

Pin
No.

Signal
name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

Signal Pin
name No.

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

Pin
No.

Signal
name

3
4
1
2
5

SDA
SDB
RDA
RDB
FG

RS422A/485
Option
Board

4-wire
Terminating resistance: ON

RS-422

Terminal block
D-sub, 9-pin
connector (male)
(+)
5-V
power (–)
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF

A-120

CJ2 CPU Unit Hardware User’s Manual

Appendices

z RS-422A/485 Ports with 1:N Connections
Personal Computer
Signal
name

RS-232C
Interface

FG
SD
RD
RS
CS

NT-AL001 Link Adapter

Shield

DR
ER
SG

Pin
No.

Signal
name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

Signal Pin
name No.

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

Pin Signal
No. name

B500-AL001
Signal Pin
name No.

SDA
SDA
SDB RSSDB
422A/485
RDA interface RDA
RDB
RDB
SG
SG
FG
FG
Signal name SDA SDB RDA RDB SG
5 6 1 3
Pin No. 9
9
5
6
1
3
7

9
5
6
1
3
7
FG
7

CPU Unit
Shield Pin
No.

3
4
1
2
5

Signal
name

SDA−
SDB+
RDA−
RDB+
FG

RS422A/485
Option
Board

4-wire
Terminating resistance: OFF
D-sub, 9-pin connector
(male)

RS-422

D-sub, 9-pin
Terminal block
connector (male)
(+)
5-V
power (–)

CPU Unit
Pin Signal
No. name
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF

Shield

3
4
1
2
5

CPU Unit

RS-232C
Interface

FG
SD
RD
RS
CS

Shield

Pin
No.

Signal
name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

DR
ER
SG

Signal Pin
name No.

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

Signal Pin
name No.

SDA
SDA
SDB RSSDB
422A/485
RDA interface RDA
RDB
RDB
SG
SG
FG
FG
Signal name SDA SDB RDA RDB SG
5 6 1 3
Pin No. 9
9
5
6
1
3
7

9
5
6
1
3
7
FG
7

Shield

Pin
No.

Signal
name

3
4
1
2
5

SDA−
SDB+
RDA−
RDB+
FG

A-4 Connecting to a Serial Port on the CPU Unit

Signal
name

Pin Signal
No. name

RS422A/485
Option
Board

4-wire
Terminating resistance at
end of line: ON.

B500-AL001
NT-AL001 Link Adapter

Personal Computer

SDA−
SDB+
RDA−
RDB+
FG

RS422A/485
Option
Board

4-wire
Terminating resistance: OFF
D-sub, 9-pin connector
(male)

RS-422

D-sub, 9-pin
Terminal block
connector (male)
(+)
5-V
power (–)

CPU Unit
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF

Pin Signal
No. name

Shield

3
4
1
2
5

SDA
SDB
RDA
RDB
FG

RS422A/485
Option
Board

App

4-wire
Terminating resistance at
end of line: ON.

A-4-2 Connection Examples

CJ2 CPU Unit Hardware User’s Manual

A-121

Appendices

OMRON PT (Host Link or 1:N NT Link)
z Direct Connection from RS-232C to RS-232C
PT

RS-232C port
RS-232C

Host Link or NT Link (1:N)
PT

CPU Unit
Pin
No.
FG Hood
FG
1
SD
2
RD
3
RS-232C
4
Interface RS
CS
5
5V
6
DR
7
ER
8
SG
9
D-sub, 9-pin
connector (male)

Pin Signal
No. name
Hood FG
–
1
2
SD
3
RD RS-232C
4
RS Interface
5
CS
6
5V
7
–
8
–
9
SG

Signal
name

• Communications Mode:

D-sub, 9-pin
connector (male)

Host Link (unit number 0 only for Host Link)
NT Link (1:N, N = 1 Unit only)

• OMRON Cables with Connectors:
XW2Z-200T-1: 2 m
XW2Z-500T-1: 5 m

z RS-422A/485 Ports with 1:1 Connection
CPU Unit

RS422A/485
Option
Board

PT (See note.)

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Short pin

Signal name

RDA
TRM
RDB
SDA
SDB
RSA
RSB

Terminal block

RS422A/485
interface

Functional ground
Terminal block/D-sub connector

• Communications Mode:

Host Link (Host Link unit number 0 only)
NT Link (1:N, N = 1 Unit only)

* Switch Settings on RS-422A/485 Option Board

• Terminating resistance: ON
• 2-wire/4-wire setting: 4-wire
Note The terminating resistance setting example is for the NT631/NT631C.
The setting method depends on the PT model. Refer to the manual for your PT.

A-122

CJ2 CPU Unit Hardware User’s Manual

Appendices

z RS-422A/485 Ports with 1:N, 4-wire Connections
CPU Unit

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Signal name

RDA
TRM
RDB
SDA
SDB
RSA
RSB

Terminal block

RS422A/485
interface

Functional ground
Terminal block/D-sub connector
Short pin

PT (See note.)

Signal name

RDA
TRM
RDB
SDA
SDB
RSA
RSB

RS422A/485
interface

Functional ground
Terminal block/D-sub connector

• Communications Mode:

1:N NT Link
A-4 Connecting to a Serial Port on the CPU Unit

* Switch Settings on RS-422A/485 Option Board

z RS-422A/485 Ports with 1:N, 2-wire Connections
CPU Unit

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Signal name

RDA
TRM
RDB
SDA
SDB

RS422A/485
interface

Terminal block

App

Functional ground
Terminal block/D-sub connector
Short pin

PT (See note.)

A-4-2 Connection Examples

Signal name

RDA
TRM
RDB
SDA
SDB

RS422A/485
interface

Functional ground
Terminal block/D-sub connector

• Communications Mode:

1:N NT Link

* Switch Settings on RS-422A/485 Option Board

• Terminating resistance: ON
• 2-wire/4-wire setting: 2-wire
Note The terminating resistance setting example is for the NT631/NT631C.
The setting method depends on the PT model. Refer to the manual for your PT.

CJ2 CPU Unit Hardware User’s Manual

A-123

Appendices

General-purpose External Devices (No-protocol or Serial Gateway)
This section describes the connection patterns and connections for using different ports in Serial Gateway Mode and No-protocol Mode. Up to 32 nodes can be connected for 1:N communications.
Port
RS-232C

Connection
type

Diagram

1:1
RS-232C
RS-232C
I/F
NT-AL001

NT-AL001
RS-232C

Terminating
resistance ON
+5 V required

RS-422A/485

Terminating
resistance ON

RS-232C
I/F

NT-AL001
RS-422A/485

RS-232C

Terminating
resistance ON

RS-232C

RS-422A/
485 I/F

1:N

RS-422A/485 I/F
NT-AL001
RS-232C Terminating

RS-422A/485

resistance ON

Terminating
resistance ON

RS-422A/485 I/F
NT-AL001
RS-232C

B500-AL001

RS-422A/

Terminating 485
resistance ON

Terminating
resistance ON

NT-AL001

RS-232C

RS-232C I/F

RS-232C

Terminating
resistance ON

RS-422A/485

RS-232C

Terminating RS-232C
resistance ON
+5 V required

Note 1 The maximum cable length for an RS-232C connection is 15 m. RS-232C communications specifications,
however, do not cover transmissions at 19.2 Kbps. Refer to documentation of the device being connected
when using this baud rate.
2 The maximum total cable length including branch lines is 500 m for RS-422A/485.
3 The maximum cable length for connecting to the NT-AL001 is 2 m.
4 The maximum branch cable length is 10 m.

A-124

CJ2 CPU Unit Hardware User’s Manual

Appendices

Connection
type

Port
RS-422A/485

Diagram

1:1
RS-422A/485 I/F

RS-422A/485

NT-AL001
RS-232C

RS-232C I/F

RS-422A/ Terminating
485
resistance ON
+5 V required

RS-422A/485

1:N

RS-422A/485 I/F

Terminating
resistance ON

RS-422A/485

Terminating
resistance ON

RS-422A/485 I/F
B500-AL001
RS-422A/485

Terminating
resistance ON

NT-AL001

RS-232C I/F

RS-232C

Terminating
resistance ON

RS-422A/485

RS-232C

Terminating RS-232C
resistance ON
+5 V required

App

2 The CP1W-CIF11 RS-422A/485 Option Board is not isolated. The maximum transmission distance is
therefore 50 m. If the distance exceeds 50 m, use the isolated CP1W-CIF12, or connect the isolated NTAL001 RS-422A Link Adapter to the RS-232C port on the CP1W-CIF01 RS-232C Option Board. If you use
one of these methods, the maximum total transmission distance will be 500 m.

A-4 Connecting to a Serial Port on the CPU Unit

Terminating
resistance ON

3 The maximum cable length for connecting to the NT-AL001 is 2 m.
A-4-2 Connection Examples

4 The maximum branch cable length is 10 m.

z Examples of 1:1 Connections to RS-232C Ports
Connecting to E5CK Temperature Controllers
CPU Unit
RS-232C Option Board
Signal name Pin No.

FG
SD
RD
RS
CS
DR
ER
SG

1
2
3
4
5
7
8
9

Example: E5CK (OMRON Temperature Controller)
RS-232C
RS-232C: Terminal block
shield
Terminal Signal name

13
14
1

SD
RD
SG

D-sub, 9-pin
connector (male)

CJ2 CPU Unit Hardware User’s Manual

A-125

Appendices

Using an NT-AL-001 RS-232C/RS-422A Link Adapter
RS-232C

CPU Unit

RS-232C
Option
Board

Signal
name

Pin
No.

FG
SD
RD
RS
CS
5V
DR
ER
SG

1
2
3
4
5
6
7
8
9

D-sub, 9-pin
connector (male)

Signal
name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

Personal Computer

NT-AL001 Link Adapter

Pin
Shield No.

Signal
name

Pin
No.

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

RS-422

RS-422A

Pin
No.

Signal
name

1
2
3
4
5
6
7
8

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

RS-422

Signal
name

Pin
No.

Signal
RS-232C name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

FG
SD
RD RS-232C
RS Interface
CS
DR
ER
SG

Terminal block
D-sub, 9-pin
connector (male)
(+) 5-V
(–) power

DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF (4-wire)
Pin 5: OFF
Pin 6: ON

DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF (4-wire)
Pin 5: OFF
Pin 6: OFF

*1 We recommend using the following NT-AL001 Link Adapter Connecting Cables to connect to NT-AL001 Link
Adapters.
NT-AL001 Connecting Cables:

XW2Z-070T-1 (0.7 m)
XW2Z-200T-1 (2 m)

Connecting to Modems
Modem
1
FG
2
SD
3
RD
4
RS
5
CS
6
DR
7 SG
8
CD
9
10
11
12
13
14
15 ST2
16
17 RT
18
19
20 ER
21
22 CI
23
24 ST1
25

A-126

CPU Unit
RS-232C
Option Board

1
2
3
4
5
6
7
8
9

FG
SD
RD
RS
CS
5V
DR
ER
SG

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Examples of 1:N Connections to RS-232C Ports
Component
with
RS-422A/485
(4-wire)
NT-AL001 Link Adapter

CPU Unit
Signal
name
RS-232C
Option
Board

FG
SD
RD
RS
CS
5V
DR
ER
SG

Shield

Pin
Pin
No. RS-232C No.

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

1
2
3
4
5
6
7
8
9

D-sub, 9-pin connector
(male)

Signal
name

Pin
No.

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

RS-422A
Shield

Signal
name

SDA RS422A/485
SDB interface
RDA
RDB
Component
with
RS-422A/485
(4-wire)
Signal
name

RS-422

Terminal block
D-sub, 9-pin
connector (male)

SDA RS422A/485
SDB interface
RDA
RDB

DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF (4-wire)
Pin 5: OFF
Pin 6: OFF

RS-232C
Option
Board

Signal
name

Pin
No.

FG
SD
RD
RS
CS
5V
DR
ER
SG

1
2
3
4
5
6
7
8
9

Shield

D-sub, 9-pin connector
(male)

Signal
name

Pin
No.

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

1
2
3
4
5
6
7
8

Pin
No.

RS-422

Terminal block
D-sub, 9-pin
connector (male)

A-4 Connecting to a Serial Port on the CPU Unit

NT-AL001 Link Adapter

CPU Unit

Component
with
RS-422A/485
(2-wire)
Signal
name RS422A/485
A(−) interface

B(+)

Component
with
RS-422A/485
(2-wire)
Signal
name

RS-

A(−) 422A/485
interface
B(+)

DIP Switch Settings
Pin 1: ON
Pin 2: ON (terminating resistance)
Pin 3: ON (2-wire)
Pin 4: ON (2-wire)
Pin 5: OFF
Pin 6: ON

NT-AL001 Connecting Cables:

A-4-2 Connection Examples

CJ2 CPU Unit Hardware User’s Manual

XW2Z-070T-1 (0.7 m)
XW2Z-200T-1 (2 m)

App

*1 We recommend using the following NT-AL001 Link Adapter Connecting Cables to connect to NT-AL001 Link
Adapters.

A-127

Appendices

z Examples of 1:1 Connections to RS-422A/485 Ports
Component
with
RS-422A/485
(2-wire)

CPU Unit

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Shield

Signal
name

A(−)
B(+)

Component
with
RS-422A/485
(4-wire)

CPU Unit

RS422A/485
interface

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Shield

Signal
name

SDA RS422A/485
SDB interface
RDA
RDB

Terminal block

Terminal block
CPU Unit

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Terminal block

RS-422A
Shield

NT-AL001 Link Adapter
Pin
No.

Signal
name

1
2
3
4
5
6
7
8

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

RS-422

Signal
name

Personal Computer
Pin
Signal
No. RS-232C name

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

FG
SD
RD
RS
CS

RS-232C
Interface

DR
ER
SG

D-sub, 9-pin connector
(male)
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF

A-128

(+) 5-V
(–) power

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Examples of 1:N Connections to RS-422A/485 Ports
Component
with
RS-422A/485
(2-wire)

CPU Unit

RS422A/485
Option
Board

Signal
name

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

Signal
name RSA(−) 422A/485
interface

B(+)

Terminal block

Component
with
RS-422A/485
(2-wire)
Signal
name RS422A/485
A(−) interface

B(+)

B500-AL001

CPU Unit

RS422A/485
Option
Board

Pin
No.

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

RS-422A

Terminal block

Shield

Pin
No.

Signal
name

Shield
Signal Pin
name No.

SDA
SDA
SDB RS-422A SDB
RDA interface RDA
RDB
RDB
SG
SG
FG
FG
Signal name SDA SDB RDA RDB SG
5 6 1 3
Pin No. 9
9
5
6
1
3
7

RS-422A Signal
name

9
SDA RS422A/485
5
SDB interface
6
RDA
1
RDB
3
7
FG D-sub, 9-pin connector
7 (male)

A-4 Connecting to a Serial Port on the CPU Unit

Signal
name

Component
with
RS-422A/485
(4-wire)

Component
with
RS-422A/485
(4-wire)
Shield

RS-422A

Signal
name RSSDA 422A/485
SDB interface

RDA
RDB

App
A-4-2 Connection Examples

CJ2 CPU Unit Hardware User’s Manual

A-129

Appendices

CPU Unit
NT-AL001 Link Adapter

Signal Pin
name No.
RS422A/485
Option
Board

SDA−
SDB+
RDA−
RDB+
FG

3
4
1
2
5

4-wire
Terminal block
Terminating
resistance: ON

RS-422A

Shield

Pin
No.

Signal
name

1
2
3
4
5
6
7
8

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

RS-422

Signal
name

Pin
No.

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

Shield

RS-232C

Signal
name

FG
SD
RD
RS
CS

RS-232C
Interface

DR
ER
SG
(+) 5-V
(–) power

D-sub, 9-pin
Terminal block
DIP Switch: Pin 2: connector (male)
OFF (terminating
resistance); Other
pins are the same
as below.
NT-AL001 Link Adapter

Shield

Pin
No.

Signal
name

1
2
3
4
5
6
7
8

GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA

NC
1
SD
2
RD
3
RS
4
CS
5
5V
6
DR
7
ER
8
SG
9
RS-232

RS-422
Terminal block

Pin
No.

Shield

RS-232C

D-sub, 9-pin
connector (male)

Signal
name

FG
SD
RD
RS
CS

RS-232C
Interface

DR
ER
SG
(+) 5-V
(–) power

DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: ON

Serial PLC Links for OMRON CJ2M, CJ1M, CP1H, CP1L, and CP1E
PLCs
Examples of connections to use Serial PLC Links are provided below. The Serial PLC Link communications mode is used.

z Connecting with RS-422A Converters
CJ2M CPU Unit (Polling Unit)

CJ2M CPU Unit (Polled Unit 0)

RS-422A/485
Option Board

CJ1M CPU Unit (Polled Unit 1)

RS-232C port
built into CPU
Unit

CJ1W-CIF11 RS-422A
Converter

CJ1W-CIF11 RS-422A
Converter
Serial PLC Link (maximum
total distance: 50 m)

Note The CJ1W-CIF11/CP1W-CIF11 is not isolated. The maximum transmission distance is therefore 50 m.
If the distance exceeds 50 m, use the isolated CP1W-CIF12, or the NT-AL001.
Do not use the CJ1W-CIF11/CP1W-CIF11 in the transmission path. If you use the NT-AL001 and CP1WCIF12, the maximum total transmission distance will be 500 m.

A-130

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Connections to RS-232C Ports
RS-232C can also be used to connect two CJ2M CPU Units with a Serial PLC Link.
CJ2M CPU Unit
RS-232C Option Board
Pin No.

Pin No.

1
2
3
4
5
6
7
8
9

FG
SD
RD
RS
CS
5V
DR
ER
SG

Signal name

FG
SD
RD
RS
CS
5V
DR
ER
SG

RS-232C

Signal name

CJ2M CPU Unit
RS-232C Option Board

z Connection Example
CJ2M CPU Unit (Polled Unit 0)
RS-422A/485 Option Board
CP1W-CIF11/CIF12
DIP SW
SW1: ON (terminating resistance OFF)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)

RS-422A/485 interface

CJ1M CPU Unit (Polled Unit 1)
CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)

A-4 Connecting to a Serial Port on the CPU Unit

CJ2M CPU Unit (Polling Unit)
RS-232C Option Board
CP1W-CIF01
CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: OFF (4-wire)
SW3: OFF (4-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: OFF (no RS control for SD)

Signal
name

RS-422A/485 interface

Pin
No.

Shield

CJ2M CPU Unit (Polled Unit 0)
RS-422A/485 Option Board
CP1W-CIF11/CIF12
DIP SW
SW1: OFF (terminating resistance OFF)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)

Pin
No.

SDB

SDA

RDB

Signal
name

RDA

Pin
No.

SDB

SDA

RDB

SDB

RS-422A/485 interface

RDA

SDA

Signal
name

RDB

RS-422A/485 interface

RDA

Pin
No.

CJ1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)

A-4-2 Connection Examples

Signal
name

RS-422A/485 interface

CJ1M CPU Unit (Polled Unit 1)

App

CJ2M CPU Unit (Polling Unit)
RS-232C Option Board
CP1W-CIF01
CP1W-CIF11
DIP SW
SW1: ON (terminating resistance ON)
SW2: ON (2-wire)
SW3: ON (2-wire)
SW4: OFF
SW5: OFF (no RS control for RD)
SW6: ON (RS control for SD)

Shield

CJ2 CPU Unit Hardware User’s Manual

A-131

Appendices

z Connections for Echoback Test
Use the following connections.
RS-232C port
Pin No. Signal name
2
SD
3
RD
4
RS
5
CS
1
FG
8
ER
7
DR

A-4-3

RS-422A/485 port
Pin No. Signal name
3
SDA4
SDB+
1
RDA2
RDB+
5
FG

Applicable Connectors and Recommended Cables

Examples of Recommended RS-232C Wiring
We recommend the following wiring methods for RS-232C, especially in environment prone to noise.
• Use shielded twisted-pair cable for communications cables.
• Use a twisted-pair cable for each signal line and SG (signal ground) to connect the CPU Unit to a
communications partner. Also, bundle all the SG lines at the Unit and at the other device and connect
them together.
• Connect the shield line of the communications cable to the hood (FG) of the RS-232C connector at
the Unit. Also, ground the protective earth (GR) terminal of the Power Supply Units on the CPU Rack
and the CJ-series Expansion Racks to a resistance of 100 Ω or less. The following example shows
connecting SD-SG, RD-SG, RS-SG, and CS-SG for Serial Communications Mode using a twistedpair cable using the peripheral bus.
SG signal line
External device

CPU Unit
Pin Signal
No. name
2
SD
3
RD
4
RS
5
CS
9
SG
Hood FG
1
FG

Signal
name
RD
SD
CS
RS
SG
FG

SG signal lines
bundled together
Aluminum foil

XM2S-0911-E

Shield

Note The hood (FG) is internally connected to the protective earth (GR) terminal on the Power Supply Unit
through the CPU Rack. FG can thus be connected by connecting the protective earth (GR) terminal on the
Power Supply Unit. The hood (FG) is also electrically connected to pin 1 (FG), but the connection resistance
between the shield and the FG is smaller for the hood. To reduce contact resistance between the hood (FG)
and the FG, connect the shield both to the hood (FG) and to pin 1 (FG).
Example for CJ2H CPU Unit
Power Supply Unit

Example for CJ2M CPU Unit
Power Supply Unit

CPU Unit

Pulse I/O Module

PA205R
POWER

AC100-240V
INPUT
L2/N

COMM

RUN
OUTPUT
AC240V
DC24V

Ground to 100 Ω
or less

A-132

Hood and GR connected
internally.
The hood will be grounded
if the GR terminal is grounded.

Ground to 100 Ω
or less

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Applicable Connector and Recommended Cables
Use the following connectors and cables when making an RS-232C cable to connect to the RS-232C
port.
Computer
(9-pin male
connector)

IBM PC/AT or compatible

CPU Unit

Plug:
XM2D-0901
(9-pin female)

RS-232C
port

Hood: XM2S-0913
Recommended cable Hood: XM2S-0911-E

Plug: XM2A-0901

Provided with the CPU Unit

Applicable Connectors
CPU Unit Connector
Item

Model

Specifications

Plug

XM2A-0901

9-pin male

Hood

XM2S-0911-E

9-pin, millimeter screws, static-resistant

Used together (One of each provided with CPU Unit.)
A-4 Connecting to a Serial Port on the CPU Unit

Personal Computer Connector for IBM PC/AT Computer (9-pin Male Connector)
Item

Model

Specifications

Plug

XM2A-0901

9-pin female

Hood

XM2S-0913

9-pin, inch screws, staticresistant

Used together

Recommended Cables
We recommend using the following shielded twisted-pair cables to provide noise resistance.
Fujikura Ltd.:

UL2464 AWG28 × 5P IFS-RVV-SB (UL product)
AWG 28 × 5P IFVV-SB (non-UL product)

Hitachi Cable, Ltd.: UL2464-SB(MA) 5P × 28AWG (7/0.127) (UL product)
CO-MA-VV-SB 5P × 28AWG (7/0.127) (non-UL product)

CJ2 CPU Unit Hardware User’s Manual

A-133

A-4-3 Applicable Connectors and Recommended
Cables

Use the special cables provided from OMRON for all connections whenever possible. If cables
are produced in-house, be sure they are wired correctly. External devices and the CPU Unit may
be damaged if general purpose (e.g., computer to modem) cables are used or if wiring is not correct.

App

Precautions for Correct Use

Appendices

z Wiring Connectors
Use the following procedures to wire connectors.
Preparing the Cable
Lengths for steps in the procedure are provided in the diagrams.
Connecting the Shield Line to the Hood (FG)

Cut the cable to the required length, leaving leeway for wiring and laying the cables.

Use a razor blade to cut away the sheath, being careful not to damage the braiding.

40 mm (RS-232C)

Use scissors to cut away all but 10 mm of the exposed braiding.

10 mm

Use wire strippers to remove the insulation from the end of each wire.

5 mm

Fold the braiding back over the end of the sheath.

Wrap aluminum foil tape over the top of the braiding for one and a half turns.

Aluminum foil tape

z Not Connecting the Shield to the Hood (FG)

Cut the cable to the required length, leaving leeway for wiring and laying the cables.

Use a razor blade to cut away the sheath, being careful not to damage the braiding.

40 mm (RS-232C)

Use scissors to cut away the exposed braiding.

10 mm

A-134

CJ2 CPU Unit Hardware User’s Manual

Appendices

Use wire strippers to remove the insulation from the end of each wire.

5 mm

Wrap electrician's tape over the top and end of the cut sheath.

Electrician's tape

z Soldering

Place heat-shrinking tubes over all wires.

Pre-solder all wires and connector terminals.

Solder the wires.
A-4 Connecting to a Serial Port on the CPU Unit

1 mm

Soldering iron

Heat-shrinking tube
(inner dia. 1.5, l = 10)

Move the heat-shrinking tubes onto the soldered area and shrink them into place.

App

Heat-shrinking tube
A-4-3 Applicable Connectors and Recommended
Cables

z Assembling the Hood
Assemble the connector hood as shown.

FG Connection

No FG Connection
Aluminum foil tape

Ground plate

CJ2 CPU Unit Hardware User’s Manual

A-135

Appendices

z Connections to the CPU Unit
• Always turn OFF the power supply to the PLC before connecting or disconnecting communications cables.
• Tighten the communications connector attachment screws to 0.4 N·m.

Example of Recommended RS-422A/485 Wiring
We recommend using the following wiring for RS-422A/485 to ensure transmission quality.

Use shielded twisted-pair cable for communications cables.

• Recommended RS-422A/485 Cable
Model
CO-HC-ESV-3P × 7/0.2

Manufacturer
Hirakawa Hewtech Corp.

Connect the shield on the communications cable to the FG terminal on the RS-422A/485 Option
Board. Also, ground the protective earth (GR) terminal on the CPU Unit to a resistance of 100 Ω
or less.
Precautions for Correct Use
Using the CP1W-CIF11 RS-422A/485 Option Board (Not Isolated)
Use the CP1W-CIF11 only when there is no difference in electrical potential between devices.
Connect the shield on the communications cable at both ends to the FG terminals on the RS422A/485 terminal blocks to ground it. Do not allow the communications distance to exceed
50 m.
Using the CP1W-CIF12 RS-422A/485 Option Board (Isolated)
Use the CP1W-CIF12 if there is a difference in electrical potential between devices or for longdistance communications (500 m max.).
Connect the shield on the communications cable only at the Option Board to ground it. If the
shield is connected at both ends of the cable when there is a difference in electrical potential, the
devices may be damaged.

A-136

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Connection Examples
Examples for 2-wire and 4-wire Transmission Paths
The transmission path for 2-wire and 4-wire connections are different, as shown below.
Example for 4-wire Connections

Example for 2-wire Connections

2-wire/4-wire
switch (DPDT)

Other Unit

Option Board

Other Unit Other Unit
NC (Non Connection)

Precautions for Correct Use
• All nodes must use either 2-wire connections or 4-wire connections.
• Do not use 4-wire connections with the switch on the Board set for 2-wire connections.
A-4 Connecting to a Serial Port on the CPU Unit

Wiring Example for 1:1 Connections
• Example for 2-wire Connections
CJ2M CPU Unit
RS-422A/485 Option Board

Pin
No.
3
4
1
2
5

External device

Signal
name

SDA−
SDB+
RDA−
RDB+
FG

A(−)
B(+)
FG

Shield

• Example for 4-wire Connections
CJ2M CPU Unit
RS-422A/485 Option Board

External device

Signal
name
RDA
RDB
SDA
SDB
FG

Signal
name
SDA−
SDB+
RDA−
RDB+
FG

App

Pin
No.
3
4
1
2
5

Shield

CJ2M CPU Unit
Option Board

Pin
No.

Signal
name

3
4
1
2
5

SDA−
SDB+
RDA−
RDB+
FG

B500-AL001
RS-422

Pin Signal
No. name

6
1
9
5
7

External device

Signal Pin
name No.

RDA
RDA
RS-422
RDB
RDB
Interface
SDA
SDA
SDB
SDB
FG
FG

A-4-3 Applicable Connectors and Recommended
Cables

• Using a B500-AL001 Link Adapter
RS-422

6
1
9
5
7

Signal
name

RDA
RDB
SDA
SDB
FG

Signal name RDA RDB SDA SDB FG
1
9
5
7
Pin No. 6
External device

RS-422

Signal
name

RDA
RDB
SDA
SDB
FG

CJ2 CPU Unit Hardware User’s Manual

A-137

Appendices

Noise Countermeasures for External Wiring
Take the following points into account when externally wiring communications cables.
• When multi-conductor signal cable is being used, do not combine I/O wires and other control wires in
the same cable.
• If wiring racks are parallel, allow at least 300 mm between them.
Low-power cables
Communications cables
300 mm min.
Control cables
SYSMAC power supply
lines and general
control circuit lines
Power cables

300 mm min.

Power lines

Ground to less than 100 Ω

• If the I/O wiring and power cables must be placed in the same duct, they must be shielded from each
other using grounded steel sheet metal plates.
Communications
cables

SYSMAC power supply
lines and general control
circuit lines
Power lines Steel sheet metal plates

200 mm min.

Ground to less than 100 Ω

A-138

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-5

Installing the USB Driver
The USB driver must be installed in the computer to connect the PLC to the computer using the USB
port.

Procedure for Installing the USB Driver
This section describes the procedure for connecting a computer to the peripheral (USB) port on the
CJ2 CPU Unit for the first time. This example assumes that the Support Software is already installed.
The installation procedure given here is for CX-One version 4.0 (CX-Programmer version 9.1).

z Windows 2000, Vista, or Windows 7

Turn ON the power supply to the PLC and connect the peripheral USB port on the PLC to the
personal computer using a USB cable. The USB driver will be automatically installed when the
cable is connected.

Note If the software is not automatically installed, refer to Installing a Specified USB Driver later in this section.

Turn ON the power supply to the CJ2 PLC, and connect a USB cable between the USB port on
the computer and the peripheral (USB) port on the CJ2 CPU Unit.
After the cable has been connected, the computer will automatically recognize the device and
the following message will be displayed.

App

A-5 Installing the USB Driver

z Windows XP

The following dialog box will be displayed. Select one of the options and click the Next Button.
A-4-3 Applicable Connectors and Recommended
Cables

CJ2 CPU Unit Hardware User’s Manual

A-139

Appendices

The following dialog box will be displayed. Select the Install the software automatically (Recommended) Option and click the Next Button.

Note 1 If the software cannot be installed automatically, refer to Installing a Specified USB Driver later in this section.
2 If the installation media is not inserted or the USB device driver is installed for another port, a Driver List
Dialog Box will be displayed. Make sure that the newest driver is selected and click the Next Button.

A-140

Ignore the following dialog box if it is displayed and click the Continue Anyway Button.

CJ2 CPU Unit Hardware User’s Manual

Appendices

The following dialog box will be displayed if the installation is completed normally. Click the Finish Button.

Installing a Specified USB Driver
If the USB driver cannot be installed automatically, use the following procedure to install it.

z Windows Vista/Windows 7
Turn ON the power supply to the PLC and connect the peripheral USB port on the PLC to the
personal computer using a USB cable.

The following dialog box will be displayed. Select Locate and install driver software (Recommended).

A-5 Installing the USB Driver

App
A-4-3 Applicable Connectors and Recommended
Cables

CJ2 CPU Unit Hardware User’s Manual

A-141

Appendices

The following dialog box will be displayed. Select I don't have the disc. Show me other
options.

The following dialog box will be displayed. Click the Browse Button, specify the following location, and then click the Next Button.
C:\Program Files\OMRON\CX-Server\USB\Win2000_XP\Inf

A-142

CJ2 CPU Unit Hardware User’s Manual

Appendices

Ignore the following dialog box if it is displayed and select Install this driver software anyway.

The following dialog box will be displayed when the driver software has been installed successfully.

App

The following window will be displayed. Select the Install from a list of specific location Option
and then click the Next Button.

A-5 Installing the USB Driver

z Windows XP

A-4-3 Applicable Connectors and Recommended
Cables

CJ2 CPU Unit Hardware User’s Manual

A-143

Appendices

A-144

The following window will be displayed. Click the Browse Button for the Include this location in
the search Field, specify C:\Program Files\OMRON\CX-Server\USB\win2000_XP\Inf, and then
click the Next Button. The driver will be installed. (“C:\” indicates the installation drive and may
be different on your computer.)

Ignore the following window if it is displayed and click the Continue Anyway Button.

The following window will be displayed if the installation is completed normally. Click the Finish
Button.

CJ2 CPU Unit Hardware User’s Manual

Appendices

z Windows 2000

The following message will be displayed. Click the Next Button.

The following window will be displayed.
Select the Search for a suitable driver for the device (recommended) Option and then click the
Next Button.

A-5 Installing the USB Driver

App
A-4-3 Applicable Connectors and Recommended
Cables

CJ2 CPU Unit Hardware User’s Manual

A-145

Appendices

A-146

The following window will be displayed. From the list in the window, select the Specify location
Check Box and then click the Next Button.

Click the Browse Button, specify C:\Program Files\OMRON\CX-Server\USB\win2000_XP\Inf,
and then click the Next Button. (“C:\” indicates the installation drive and may be different on your
computer.)

A search will be made for the driver and the following window will be displayed. Click the Next
Button. The driver will be installed.

After the driver has been successfully installed, the following window will be displayed. Click the
Finish Button.

CJ2 CPU Unit Hardware User’s Manual

Appendices

Checking after Installation

1
2

Display the Device Manager at the computer.
Click USB (Universal Serial Bus) Controllers, and confirm that OMRON SYSMAC PLC Device is
displayed.

If the USB driver installation fails for some reason or is cancelled in progress, the USB driver must be
reinstalled.

z Checking USB Driver Status

If the OMRON-PLC is displayed under Universal Serial Bus controllers, installation of the USB
driver software failed.

App

Display the Device Manager on the computer.

A-5 Installing the USB Driver

Re-installing the USB Driver

A-4-3 Applicable Connectors and Recommended
Cables

CJ2 CPU Unit Hardware User’s Manual

A-147

Appendices

z Reinstalling the USB Driver

Right-click OMRON-PLC under Universal Serial Bus controllers and select Properties. The
properties will be displayed.

A-148

Click the Reinstall Driver Button. The Hardware Update Wizard Dialog Box will be displayed.
Install the driver software using the procedure described in Installing the USB Driver.

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-6

Load Short-circuit Protection and
Line Disconnection Detection for
Basic I/O Units
Load Short-circuit Protection and Line Disconnection Detection
for CJ1W-OD202

This section describes the load short-circuit protection of the CJ1W-OD202 Output Units.
As shown below, normally when the output bit turns ON (OUT), the transistor will turn ON and then output current (Iout) will flow.
Normal Operation
OUT:
IOUT:
ERR:
Ilim:
IOL:
Tj:
Tstd:
Tr:

OUT

OFF

IOUT

OFF
ON

ERR

OUTPUT instruction
Output current
Alarm output, ERR indicator
Short-circuit detection current
Disconnection detection current
Junction temperature of transistor
Thermal shutdown temperature
Reset temperature

OFF

If the output (Iout) is overloaded or short-circuited exceeding the detection current (Ilim), the output current (Iout) will be limited as shown in figure below. When the junction temperature (Tj) of the output transistor reaches the thermal shutdown temperature (Tstd), the output will turn OFF to protect the
transistor from being damaged, and the alarm output bit will turn ON to light the ERR indicator. When
the junction temperature (Tj) of the transistor drops down to the reset temperature (Tr), the ERR indicator will be automatically reset and the output current will start flowing.
Operation for Overload or Short Circuit
ON

OUT

OFF

App

IOUT

Tj =Tstd Tj =Tr
Ilim

OFF

ERR

Operation for Disconnected Line with Output Current below the Line Disconnection Detection Current
ON
OFF

IOUT

IOL

OFF

ERR

OFF

A: Load not connected or load line broken.
B: Current to load at or below line disconnection detection current.
C: Rise of current to load too slow and error detected before the disconnection detection current was
reached.
CJ2 CPU Unit Hardware User’s Manual

A-149

A-6-1 Load Short-circuit Protection and Line
Disconnection Detection for CJ1W-OD202

OFF

If the line is disconnected and the output current (Iout) drops below the line disconnection detection current (IOL), the ERR indicator will light as shown in the following figure.

OUT

A-6 Load Short-circuit Protection and Line Disconnection Detection for Basic I/O Units

A-6-1

Appendices

When load L is connected, the ERR indicator may light and the Alarm Output Bit may turn ON for
approximately 100 ms. The programming example given later in this section can be used so that an
error is not detected in this case.

z Operating Restrictions
Although the CJ1W-OD202 is provided with short-circuit protection, these are for protecting internal
circuits against momentary short-circuiting in the load. As shown in Figure 2, the short-circuit protection is automatically released when the Tj equals to Tr. Therefore, unless the cause of short-circuit is
removed, ON/OFF operations will be repeated in the output. Leaving short-circuits for any length of
time will cause internal temperature rise, deterioration of elements, discoloration of the case or
PCBs, etc. Therefore, observe the following restrictions.

z Restrictions
If a short-circuit occurs in an external load, immediately turn OFF the corresponding output and
remove the cause. The CJ1W-OD202 turns ON an alarm output bit that corresponds to the external
load output number. There is an alarm output bit for every common.
When an alarm output bit turns ON, use a self-holding bit for the alarm in the user program and turn
OFF the corresponding output.
The alarm output bit is allocated in the Basic I/O Unit Information Area (A050 to A069) for every Unit
mounting slot.
The following table shows the correspondence between output bits and bits in the Basic I/O Unit
Information Area.
Output bit
CJ1W-OD202

0 to 1

2 to 3

4 to 5

6 to 7

Mounted in even slot

Mounted in odd slot

For example, when the CJ1W-OD202 is mounted in slot 0 on Rack 0, A50.00 will turn ON if the output 0 is short-circuited. When the CJ1W-OD202 is mounted in slot 1 of Rack 0, A50.11 will turn ON
if the output 7 is short-circuited.

z Programming Example
In this example, CJ1W-OD202 is mounted in slot 0 of the Rack 0.
This example shows how to turn OFF output bits CIO 0.00 immediately if the alarm output bit A50.00
turns ON and how to keep the output bits OFF until the cause is removed and the bit is reset using
work bit W0.01.
Change to CIO 0.00, CIO 1.00, 0 (under TIM and at bottom right of diagram), A50.00, and W0.01.
To prevent the alarm output bit from turning ON momentarily when the load turns ON, the alarm output is not turned ON for 200 ms after the input (CIO 1.00) turns ON.
A50.00

1.00

TIM
0000
#0002

TIM0

W0.01
W0.00

W0.00

1.00

W0.00
0.00

A-150

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-6-2

Load Short-circuit Protection for CJ1WOD204/OD212/OD232/MD232

Normal Operation
OUT: OUTPUT instruction
IOUT: Output current

OUT

OFF

ERR: Alarm output, ERR indicator
Ilim: Detection current

IOUT

Tj:
Junction temperature of transistor
Tstd: Thermal shutdown temperature
Tr:
Reset temperature

OFF

ERR

OFF

Operation for Overload or Short Circuit
ON

OUT

OFF

IOUT

Tj =Tstd Tj =Tr
Ilim

OFF

ERR

OFF

CJ2 CPU Unit Hardware User’s Manual

A-151

A-6-2 Load Short-circuit Protection for CJ1WOD204/OD212/OD232/MD232

These Units are provided with short-circuit protection, these are for protecting internal circuits against
momentary short-circuiting in the load. As shown in Figure 2, the short-circuit protection is automatically released when the Tj equals to Tr. Therefore, unless the cause of short-circuit is removed,
ON/OFF operations will be repeated in the output. Leaving short-circuits for any length of time will
cause internal temperature rise, deterioration of elements, discoloration of the case or PCBs, etc.
Therefore, observe the following restrictions.

App

Operating Restrictions for the CJ1W-OD204/OD212/OD232/MD232

A-6 Load Short-circuit Protection and Line Disconnection Detection for Basic I/O Units

As shown below, normally when the output bit turns ON (OUT), the transistor will turn ON and then output current (Iout) will flow. If the output (Iout) is overloaded or short-circuited exceeding the detection
current (Ilim), the output current (Iout) will be limited as shown in second figure below. When the junction temperature (Tj) of the output transistor reaches the thermal shutdown temperature (Tstd), the output will turn OFF to protect the transistor from being damaged, and the alarm output bit will turn ON to
light the ERR indicator. When the junction temperature (Tj) of the transistor drops down to the reset
temperature (Tr), the ERR indicator will be automatically reset and the output current will start flowing.

Appendices

z Restrictions
If a short-circuit occurs in an external load, immediately turn OFF the corresponding output and
remove the cause. An alarm output bit that corresponds to the external load output number is turned
ON. There is an alarm output bit for every common.
When an alarm output bit turns ON, use a self-holding bit for the alarm in the user program and turn
OFF the corresponding output.
The alarm output bit is allocated in the Basic I/O Unit Information Area (A050 to A069) for every Unit
mounting slot.
The following table shows the correspondence between output bits and bits in the Basic I/O Unit
Information Area.
Output bit
CJ1W-OD204
CJ1W-OD212

Mounted in even slot

Mounted in odd slot

8 to 15

Mounted in even slot

Mounted in odd slot

CJ1W-MD232 Mounted in even slot
CJ1W-OD232

m
0 to 7

m+1

m+2

m+3

0 to 15

Mounted in odd slot

Mounted in even slot

Mounted in odd slot

For example, when the CJ1W-OD212 is mounted in slot 0 on Rack 0, A50.00 will turn ON if the output 8 is short-circuited. When the CJ1W-OD232 is mounted in slot 1 of Rack 0, A50.09 will turn ON
if the output m+1 is short-circuited.

z Programming Example
In this example, CJ1W-OD212 is mounted in slot 0 of the Rack 0.
This example shows how to turn OFF output bits CIO 0.00 to CIO 0.07 immediately if the alarm output bit A50.00 turns ON and how to keep the output bits OFF until the cause is removed and the bit
is reset using work bit W0.01.
A50.00

W0.01
W0.00

W0.00

W0.00
0.00

W0.00
0.01

W0.00
0.07

A-152

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-7

Relay Output Noise Reduction
Methods
The CJ-series PLCs conforms to the Common Emission Standards (EN61000-6-4) of the EMC Directives. However, noise generated by relay output switching may not satisfy these Standards. In such a
case, a noise filter must be connected to the load side or other appropriate countermeasures must be
provided external to the PLC.
Countermeasures taken to satisfy the standards vary depending on the devices on the load side, wiring, configuration of machines, etc. Following are examples of countermeasures for reducing the generated noise.

Countermeasures
(Refer to EN61000-6-4 for more details.)
Countermeasures are not required if the frequency of load switching for the whole system with the PLC
included is less than 5 times per minute.

Countermeasure Examples
When switching an inductive load, connect an surge protector, diodes, etc., in parallel with the load or
contact as shown below.
Current

Circuit

AC
Yes

C
Power
supply

Inductive
load

CR method

DC
Yes

Characteristic
If the load is a relay or solenoid,
there is a time lag between the
moment the circuit is opened and
the moment the load is reset.

The dielectric strength of the
capacitor must be 200 to 300 V. If
the circuit is an AC circuit, use a
capacitor with no polarity.

CJ2 CPU Unit Hardware User’s Manual

A-153

A-6-2 Load Short-circuit Protection for CJ1WOD204/OD212/OD232/MD232

The capacitance of the capacitor
must be 1 to 0.5 µF per contact current of 1 A and resistance of the
resistor must be 0.5 to 1 Ω per contact voltage of 1 V. These values,
however, vary with the load and the
characteristics of the relay. Decide
these values from experiments, and
take into consideration that the
capacitance suppresses spark discharge when the contacts are separated and the resistance limits the
current that flows into the load
when the circuit is closed again.

App

If the supply voltage is 24 or 48 V,
insert the surge protector in parallel
with the load. If the supply voltage
is 100 to 200 V, insert the surge
protector between the contacts.

Required element

A-7 Relay Output Noise Reduction Methods

Countermeasures are required if the frequency of load switching for the whole system with the PLC
included is more than 5 times per minute.

Appendices

Current

Circuit

AC
No

Power
supply

Yes

Inductive
load

Diode method

Characteristic

Required element

The reversed dielectric strength
value of the diode must be at least
10 times as large as the circuit voltage value. The forward current of
the diode must be the same as or
larger than the load current.

This time lag, between the moment
the circuit is opened and the
moment the load is reset, caused
by this method is longer than that
caused by the CR method.
Yes

Yes

Inductive
load

Varistor method

Power
supply

The varistor method prevents the
imposition of high voltage between
the contacts by using the constant
voltage characteristic of the varistor. There is time lag between the
moment the circuit is opened and
the moment the load is reset.

The reversed dielectric strength
value of the diode may be two to
three times larger than the supply
voltage if the surge protector is
applied to electronic circuits with
low circuit voltages.
---

If the supply voltage is 24 or 48 V,
insert the varistor in parallel with
the load. If the supply voltage is
100 to 200 V, insert the varistor
between the contacts.

When switching a load with a high inrush current such as an incandescent lamp, suppress the inrush
current as shown below.
Countermeasure 1

Countermeasure 2
R

OUT

OUT
R

COM
Providing a dark current of
approx. one-third of the rated
value through an incandescent
lamp

A-154

COM
Providing a limiting resistor

CJ2 CPU Unit Hardware User’s Manual

Appendices

A-8

Functions Supported for Unit
Versions

A-8-1

CJ2H CPU Units

Functions Supported for Unit Version 1.3 or Later
CX-Programmer version 9.1 or higher must be used to enable using the functions added for unit version 1.3.
Units

CJ2H CPU Units

Models

CJ2H-CPU6@-EIP and CJ2H-CPU6@
Unit version

Unit version
1.3 or later

Function
Special instructions
for certain Special I/O
Units

Unit version
1.1

Unit version
1.0

CJ1W-NC281/NC481/NC881
Position Control Units: PCU
HIGH-SPEED POSITIONING
(NCDMV(218))

Supported.

Not supported.

CJ1W-NC281/NC481/NC881
Position Control Units: PCU
POSITIONING TRIGGER
(NCDTR(219))

Supported.

Not supported.

SIGNED AREA RANGE COMPARE: ZCPS(088)

Supported.

Not supported.

DOUBLE SIGNED AREA
RANGE COMPARE:
ZCPSL(116)

Supported.

Not supported.

Unit Version 1.2 or Later
CX-Programmer version 8.3 or higher must be used to enable using the functions added for unit version 1.2.
CJ2H CPU Units

Model

CJ2H-CPU6@-EIP
CJ2H-CPU6@

Unit version

Supported.

Unit versions earlier than 1.2
Not supported.

Note User programs that use functions of CJ2H CPU Units with unit version 1.2 or later cannot be used with CJ2H
CPU Units with unit version 1.1 or earlier. If an attempt is made to transfer a program that uses any of these
functions from the CX-Programmer to a CPU Unit with unit version 1.1 or earlier, an error will be displayed
and it will not be possible to download to the CPU Unit.

CJ2 CPU Unit Hardware User’s Manual

A-155

A-8-1 CJ2H CPU Units

EM Area Force-setting/resetting

Unit version 1.2 or later

App

Unit

A-8 Functions Supported for Unit Versions

New special instructions

Unit version
1.2

Appendices

Functions Supported for Unit Version 1.1 or Later
CX-Programmer version 8.1* or higher must be used to enable using the functions added for unit version 1.1.
Units

CJ2H CPU Unit
CJ2H-CPU6@-EIP and
CJ2H-CPU6@

Models
Unit version
Function

Unit version 1.1

Unit version 1.0

Supported.

Not supported.

Changing the minimum cycle time setting during operation

Supported.

Not supported.

Synchronous unit operation

Supported.

Not supported.

Addition of immediate refreshing instructions for certain Special I/O Units

Supported.

Not supported.

Supported.

Not supported.

High-speed interrupt function
Reduced overhead time for interrupt tasks
Minimum interval for scheduled interrupt task execution: 0.1 ms

CJ1W-AD042 High-speed Analog Input Unit:
ANALOG INPUT DIRECT CONVERSION (AIDC(216))
CJ1W-DA042V High-speed Analog Output Unit:
ANALOG OUTPUT DIRECT CONVERSION (AODC(217))
High-speed Serial Communications Units
CJ1W-SCU22/SCU32/SCU42 High-speed Serial Communications Units:
DIRECT RECEIVE VIA SERIAL COMMUNICATIONS UNIT (DRXDU(261))
and DIRECT TRANSMIT VIA SERIAL COMMUNICATIONS UNIT
(DTXDU(262)

* CX-Programmer version 8.02 or higher is required to use the high-speed interrupt function and the function to
change the minimum cycle time setting during operation.
Note User programs that use functions of CJ2H CPU Units with unit version 1.1 or later cannot be used with CJ2H
CPU Units with unit version 1.0 or earlier. If an attempt is made to transfer a program that uses any of these
functions from the CX-Programmer to a CPU Unit with unit version 1.0, an error will be displayed and it will
not be possible to download to the CPU Unit. If a program file (extension: .OBJ) that uses any of these functions is transferred to a CPU Unit with unit version 1.0, a program error will occur when operation starts or
when the function starts and operation of the CPU Unit will stop.

A-8-2

CJ2M CPU Units

Functions Supported for Unit Version 2.0 or Later
CX-Programmer version 9.12 or higher must be used to enable using the functions added for unit version 2.0.
Unit

CJ2M CPU Unit
CJ2M-CPU@@

Model
Unit version
Function
Pulse I/O

A-156

Unit version 2.0 or later
Supported.

Unit versions earlier than 2.0
Not supported.

CJ2 CPU Unit Hardware User’s Manual

Index
A
alarm output ................................................................ 3-26

B
Basic I/O Units ............................................................ 2-15
Basic I/O Units specifications ........................................ A-2
battery replacement procedure ..................................... 7-6
battery service life and replacement periods ................ 7-5

C
calculating power consumption ................................... 2-25
calculating unit current consumption ........................... 2-22
checking errors ............................................................. 6-2
Connector-Terminal Block Conversion Unit ....... 5-33, A-59
CPU Bus Units ............................................................ 2-21
CPU error .................................................................... 6-10
CPU error (WDT error) .................................................. 6-6
CPU Rack ..................................................................... 2-3
CPU reset ..................................................................... 6-9
CPU reset error ............................................................. 6-6
CPU standby error ................................................. 6-6, 6-8
current consumption .....................2-5, 2-6, 2-7, 2-12, 2-15

D
dimensions ........................................................... 5-8, A-94
DIN Track ............................................................. 2-9, 5-15
DIP switch .............................................................. 3-3, 3-6

E
End Cover ..................................................................... 2-3
error log information ...................................................... 6-3
EtherNet/IP port ..................................................... 2-9, 4-9
Expansion Rack .......................................................... 2-11

F
fail-safe circuit ............................................................... 5-2
fatal errors .......................................................... 6-6, A-103
cycle time exceeded error ...................6-6, 6-12, A-104
FALS(007) error ............................................ 6-6, A-107
I./O setting error .................................................. A-105
I/O bus error ........................................6-6, 6-13, A-104
I/O setting error .............................................. 6-6, 6-15
Memory Card transfer error .......................... 6-6, A-107
memory error .......................................6-6, 6-16, A-107
program error ............................................... 6-6, A-106
too many I/O points ................................................. 6-6
too many I/O points error ..................................... A-105
Unit/Rack number duplication error ..................... A-105
version error ................................................. 6-6, A-107

CJ2 CPU Unit Hardware User’s Manual

G
grounding .................................................................... 5-50

I
I/O Relay Terminal ...................................................... 5-33
I/O Relay Terminals connection patterns .................... A-60
I/O table verification ...................................................... 6-5
indicators ................................................................ 3-4, 6-2
Interrupt Input Unit ...................................................... 3-28
IP address ................................................................... 3-12

L
line disconnection detection ...................................... A-149

M
Memory Card ....................................................... 3-3, 3-13
Memory Card connector ............................................... 3-3
Memory Card indicator .................................................. 3-5
Memory Card indicators ................................................ 3-3
Memory Card power supply switch ............................... 3-3

N
node address .............................................................. 3-12
non-fatal errors ...................................................6-6, A-108
backup memory error ...................................6-6, A-109
Basic I/O error ..............................................6-6, A-109
basic I/O error ........................................................ 6-18
battery error .........................................6-6, 6-20, A-109
CPU Bus Unit error ..............................6-6, 6-21, A-109
CPU Bus Unit setting error ...........................6-6, A-110
duplicated refreshing error ...........................6-6, A-109
FAL(006) error ..............................................6-6, A-110
PLC Setup error ...........................................6-6, A-109
Special I/O Unit error ...........................6-6, 6-22, A-109
Special I/O Unit setting error ........................6-6, A-110
tag memory error ..........................................6-6, A-109

O
Option Board error ............................................... 6-6, 6-19

P
periodic inspection ........................................................ 7-2
peripheral (USB) port .................................... 3-3, 4-5, 6-11
PLC Backup Tool ........................................................... 8-2
Power supply error ........................................................ 6-6
power supply error ........................................................ 6-7
Power Supply Unit replacement time .......................... 7-10
Power Supply Units ..................................................... 3-21
program capacity ................................................... 2-5, 2-6
Pulse I/O Module .............................................3-17, A-101

Index-1

R
replacement notification .............................................. 7-10
rotary switch ................................................................ 3-11
RS-232C ...................................................................... 6-11
RS-232C interface .....................................................A-111
RS-232C Option Board
specifications .......................................................A-112
RS-232C port communications error ............................. 6-6
RS-422A/485 Option Board
specifications .......................................................A-113
RUN output .................................................................. 3-26

S
Serial Option Board ......................................... 3-20, A-102
serial port ...............................................................2-9, 3-3
serial port (RS-232C) .................................................... 4-8
seven-segment display .........................................3-9, 6-26
short-circuit protection ...............................................A-149
simple backup ............................................................... 8-7
Special I/O Units .......................................................... 2-18
Support Software .......................................................... 4-2

U
unit address ................................................................. 8-14
USB driver .................................................................A-139
USB port .................................................................2-9, 4-5
USB port communications error .................................... 6-6

W
weight .................................................... 2-5, 2-6, 2-7, 2-15
wiring duct ..................................................................... 5-7

Index-2

CJ2 CPU Unit Hardware User’s Manual

Revision History
A manual revision code appears as a suffix to the catalog number on the front cover of the manual.

Cat. No. W472-E1-08

Revision code
The following table outlines the changes made to the manual during each revision. Page numbers refer to the
previous version.
Revision code
01
02

Date
July 2008
December 2008

February 2009

July 2009

November 2009

06
07

February 2010
July 2010

October 2010

CJ2 CPU Unit Hardware User’s Manual

Revised content
Original production
Added the CJ2H-CPU6@.
Added information on unit version 1.1 of the CJ2 CPU Units.
Added the following Basic I/O Units: CJ1W-ID212, CJ1W-ID233, CJ1W-OD213,
and CJ1W-OD234.
Added information on the synchronous unit operation function.
Added the CJ1W-NC214/234/414/434 Position Control Units.
Added the CJ1W-AD042 Analog Input Unit.
Added the CJ1W-DA042V Analog Output Unit.
Added the CJ1W-SCU22/32/42 Serial Communications Units.
Added information on the EM Area force-setting/resetting function.
Corrected mistakes.
Added the CJ2M-CPU@@.
Added information on CJ2M-MD21@ Pulse I/O Modules.
Corrected mistakes.
Added information on unit version 2.1 of the built-in EtherNet/IP section on
CJ2M-CPU3@ CPU Units.
Corrected mistakes.

Revision-1

Revision-2

CJ2 CPU Unit Hardware User’s Manual

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Keywords                        : CJ2H-CPU64, CJ2H-CPU65, CJ2H-CPU66, CJ2H-CPU67, CJ2H-CPU68, CJ2H-CPU64-EIP, CJ2H-CPU65-EIP, CJ2H-CPU66-EIP, CJ2H-CPU67-EIP, CJ2H-CPU68-EIP, CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15, CJ2M-CPU31, CJ2M-CPU32, CJ2M-CPU33, CJ2M-CPU34, CJ2M-CP..
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Creator                         : Omron
Title                           : CJ2_ Operation Manual
Subject                         : CJ2H-CPU64, CJ2H-CPU65, CJ2H-CPU66, CJ2H-CPU67, CJ2H-CPU68, CJ2H-CPU64-EIP, CJ2H-CPU65-EIP, CJ2H-CPU66-EIP, CJ2H-CPU67-EIP, CJ2H-CPU68-EIP, CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15, CJ2M-CPU31, CJ2M-CPU32, CJ2M-CPU33, CJ2M-CPU34, CJ2M-CP
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CJ2_ Operation Manual W472 E1 08

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