Sick RFI3411503S04 RFID (Radio frequency interrogator) User Manual Users manual

Sick AG RFID (Radio frequency interrogator) Users manual

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Annex No.5

Page 1 of 46

Functional description

RFI341-1503S04

Preliminary

OPERATING INSTRUCTIONS

RFI341-1503

Radio Frequency Interrogator

RFI341 Radio Frequency Interrogator

Software Versions

Software Version

DSP Firmware V1.2.10

ARM7 Firmware V0.24

SICK AG Waldkirch

Auto Ident, Reute Plant

Nimburger Strasse 11

79276 Reute

Germany

Trademarks

WindowsTM is a registered trademark or trademark of the Microsoft Corporation in

the USA and other countries.

Latest Manual Version

For the latest version of this manual (PDF), see www.sick.com.

Software Versions

RFI341 Radio Frequency Interrogator

Contents

SOFTWARE VERSIONS 2

ABOUT THIS DOCUMENT 6

1.1 Purpose 6

1.2 Target Application Group 6

1.3 Symbols used 6

SAFETY INFORMATION 7

2.1 Authorized Personnel 7

2.1.1 Assembly and maintenance 7

2.1.2 Electrical Connection and Replacement 7

2.1.3 Start-up, Operation and Configuration 7

2.1.4 Intended Use 8

2.2 General Safety Instructions and Protective Measures 9

2.3 Quick Stop and Restart 9

2.4 Environmental Conditions 9

2.4.1 Power Requirements 9

2.4.2 Disposal after Final Placing out of Operation 9

PRODUCT DESCRIPTION 10

3.1 Design 10

3.1.1 Scope of Delivery 10

3.1.2 Variants 11

3.1.3 System Requirements 11

3.1.4 Product Features and Functions (Overview) 12

3.1.5 Details (Basic version) 13

3.1.6 Details (M12 connectivity version) 14

3.1.7 Details (Profibus stainless steel version) 15

Inside View (main board, profibus CMF gateway, Profibus connection) 15

3.1.7 Details (FCC Version) 16

3.1.8 View of Details (Splitter) 18

3.1.9 View of Details (Mutliplexer) 18

3.2 Functional Description of the device 19

3.3 Operating Elements and Indicators 20

3.3.1 Operating Elements 20

3.3.2 Function of the LEDs 21

4. ASSEMBLY 22

4.1 Overview about the Assembly Steps 22

4.2 Preparation for Installation 22

4.2.1 Component required 22

4.2.2 Accessories 22

Content

RFI341 Radio Frequency Interrogator

4.2.3 Selecting the Installation Location 22

4.2.4 Brackets 23

5. ELECTRICAL INSTALLATION 24

5.1 Overview of the Installation Steps 24

5.2 Electrical Connections (basic version) 24

5.3 Electrical Connections (M12 connectivity version) 25

5.4 Preparations for Electrical Installation 25

5.4.1 Requirements for the RS-232 HOST interface 25

5.4.2 Requirements for the Profi-Bus interface 25

5.4.3 Main Power supply 26

5.4.4 Connect the RS-232 interface 26

5.4.5 Connecting the “Input 1” Switching Input 27

5.4.6 Connecting the Switching Output 28

5.4.7 Ethernet 28

5.5 Performing Electrical Installation (Basic-Version) 29

5.5.1 Overview of the Connection Procedure 29

5.6 Performing Electrical Installation (Profibus-Version) 29

5.6.1 Overview of the Connection Procedure 29

5.6.2 Connect the earth ground 29

5.6.3 Connect the RS232 Interface 30

5.6.4 Connect the Profi-Bus Interface 30

OPERATION 31

6.1 Overview of the Start-up Steps 31

6.2 Factory Default Settings 31

6.3 Configuration (Parameterisation) 32

6.3.1 Antenna Output Power 32

6.3.2 RS232 Data Interface 32

6.3.3 Oscillator Switch off delay 33

6.3.4 Read after Write Verify 33

6.3.5 HF Reset for Inventory Commands 33

6.4 ISO/IEC 15693 settings 34

7. MAINTANANCE 35

7.1 Maintenance 35

7.2 Disposal 35

8. TROUBLESHOOTING 36

8.1 Installation errors 36

8.2 Electrical Connection Errors 36

8.3 Parameterisation Errors 36

RFI341 Radio Frequency Interrogator

9. TECHNICAL DATA 37

9.1 RFI341-1503 37

9.2 Dimensional Drawing 38

10. APPENDIX 39

10.1 Accessories 39

10.2 Glossary, Standard Basics, and Abbreviations 39

10.3 ISO/IEC 15693 – ISO/IEC 18000-3 Mode 1 Basics 41

RFI341 Radio Frequency Interrogator

1. About this Document

1.1 Purpose

This document provides information on placing the RFI341 Interrogator.

This document contains information about:

• Mounting and electrical installation

• Start-up

• Use and configuration

• Maintenance

• Special applications and practices

1.2 Target Application Group

The target groups for this user guide are:

• Operating electricians

• Technicians and engineers

1.3 Symbols used

Some of the information in this document is especially marked so that it can

be accessed quickly.

Warning!

Warnings are provided to prevent injury to operating personnel or serious

damage to the RFID Interrogator.

→ Always read warnings carefully and observe them at all times.

Notes provide information on special features or characteristics.

Explanations provide background information on technical aspects.

Recommendations provide advice on how to carry out a task more effectively

This symbol refers to additional technical documentation.

Note

Explanation

Recommendation

About this Document

RFI341 Radio Frequency Interrogator

2. Safety Information

2.1 Authorized Personnel

• For the RFI341 to function correctly and safely, it must be installed

and operated by sufficiently qualified personnel.

• The end user must be supplied with the operating instructions.

• The end user must be provided with expert training and is advised to

read the operating instructions.

• The following qualifications are required for the various tasks

involved.

2.1.1 Assembly and maintenance

• Practical basic technical training

• Knowledge of the standard guidelines relating to safety in the

workplace

2.1.2 Electrical Connection and Replacement

Practical training in electrical technology

• Knowledge of the standard safety guidelines relating to electrical

technology

• Knowledge regarding the operation of the devices in the relevant

application (e.g. conveyor belt)

2.1.3 Start-up, Operation and Configuration

Knowledge regarding the operation of the devices in the relevant application

(e.g. conveyor belt)

• Knowledge of the software and hardware environment of the relevant

Application

• Basic understanding of data transfer methods

• Basic understanding of RFID technology

Safety information

RFI341 Radio Frequency Interrogator

2.1.4 Intended Use

The RFI341 is designed to detect and decode 13.56 MHz, ISO 15693

compliant RFID transponder signals. It is used together with antennas

installed in a reading station and reads from and writes to RFID transponders

on objects positioned, e.g., on a conveyor belt.

The RFI341 enables the bi-directional communication with a host for, e.g.,

further processing.

Any warranty claims against SICK AG will be rendered invalid if the device is

used for any other purpose or if changes are made to the device including

changes made during the installation and electrical connection procedures.

Safety information

RFI341 Radio Frequency Interrogator

2.2 General Safety Instructions and Protective Measures

Read carefully the general safety instructions and observe them at all times.

This also applies to the warnings provided for the activities described in each

chapter of this document.

Risk of injury by electrical current!

The power supply is connected to the main voltages 24V DC.

→ When working with electrical equipment, always follow the relevant

safety instructions.

2.3 Quick Stop and Restart

Switching off the power supply of the RFI341 can result in loss of the

following:

• The specific application parameter set, if it was set only temporarily

• The last reading in the result buffer

2.4 Environmental Conditions

The RFI341 is designed to cause minimum impact to the environment.

2.4.1 Power Requirements

The RFI341 has a maximum power consumption of 50W.

2.4.2 Disposal after Final Placing out of Operation

Always dispose of unusable or irreparable devices in a manner that is not

harmful to the environment and in accordance with the applicable national

waste disposal regulations. The RFI341 can be separated into recyclable

secondary raw materials and special category waste (electronic scrap).

At present, SICK does not accept the return of unusable or irreparable

devices.

Safety information

RFI341 Radio Frequency Interrogator

3. Product Description

THE RFI341 RFID System is used for wireless identification of a variety of

objects. It works at a frequency of 13.56 MHz and reads passive ISO/IEC

15693 tags. For a working RFID system, antennas and transponders as well

as a host computer are required in addition to the product itself.

3.1 Design

3.1.1 Scope of Delivery

In the packaging, the RFI3411 is supplied with:

- 3-core RS 232 data cable (9-pin Sub D socket, open end), length 1.5 m

- An information sheet with terminal diagram and quick-start instructions

- CD-ROM with:

RFI341 PC Software for WindowsTM

RFI341 Telegram Listing

RFI341 Operating instructions

RFA3xx Antenna Operation Instructions

The latest versions of all applicable publications/programs on the CD-ROM

can be also downloaded from www.sick.com

Chapter 10.1, “Accessories” provides an overview of the available

installation accessories and standard antenna types as well as measurement

equipment and sensors for reading pulse generation.

Note

Product Description

RFI341 Radio Frequency Interrogator

3.1.2 Variants

Type Order No. Description

RFI341-1503 1043330 RFI341 13,56MHz basic

RFI341-1503S01 1043981 RFI341; Stainless steel with

integrated Profibus

RFI341-1503S02 1044537 RFI341 with M12 connectivity

RFI341-1503S04 1045449 RFI341 his device complies

with Part 15 of the FCC Rules.

Operation is subject to the

following two conditions:

Additional Filter to be used as

shown in this spec. In case Mux

is used the FCC Version need

to be used.

Splitter 6036000 One (4W) to two (2W) antenna

splitter (passive) ; not for use

with ProfiBus-Version

Multiplexer 6036002 One (4W) to up to 4 Antenna

(each 4W) mulitplexer

Multiplexer FCC 6037325 FCC Version of the mulitplexer

Filter FCC 6037324 Filter to be used in case FCC

Part 15 need to be addressed

Antenna adapter 2046653 Bulgin to BNC antenna

connector converter.

Interface cable

RS232 tbd M12 to RS232 interface cable

Interface cable Mux

Control 6035859 Control interface between

RFI341 and external multiplexer

3.1.3 System Requirements

The following are required to start up and operate the RFI341:

1. 24V DC mains power source

2. Using external clock pulse (start/stop interval) e.g. via the sensor inputs,

suitable reading pulse sensors for signalling the presence of an object or

the end of a reading/writing interval, e.g., a photoelectric reflex switch are

required.

3. A higher level computer (host system) with a Ethernet or RS232 to run

the PC Demo Software on a PC (Windows XP)

4. A SICK 13.56 MHz antenna, Type RFA3xx

Product Description

RFI341 Radio Frequency Interrogator

3.1.4 Product Features and Functions (Overview)

High Performance RFID Interrogator

• 13.56 MHz carrier frequency

• Compliant with the ISO 15693 standard

• High RF transmit output power 4 W

• Reading distance of up to 1.2 m (depended on the used antenna

transponder setup)

• RS232 and Ethernet interface (Profibus for the PB version)

• SWR (standing wave ratio) diagnostic

Safety and User Friendly Features

• Robust, compact industrial housing (variant with stainless steel

housing), IP 65 (IP66 for the stainless steel version)

• Capable of future improvements thanks to firmware update via serial

data interface

• Two driving outputs for actuator management

Easy Operation/Configuration

• Provided with RFI341 PC Demo Software for Windows

• Alternatively controllable with simple command strings

• LED for data indication

Product Description

RFI341 Radio Frequency Interrogator

3.1.5 Details (Basic version)

Power LED – indicate

that the DC

ower is on

Data LED – indicate that

data will be send

RFI341 Radio Frequency Interrogator

3.1.6 Details (M12 connectivity version)

RFI341 Radio Frequency Interrogator

3.1.7 Details (Profibus stainless steel version)

Inside View (main board, profibus CMF gateway, Profibus connection)

RFI341 Radio Frequency Interrogator

3.1.7 Details (FCC Version)

This device complies with Part 15 of the FCC Rules. Operation is subject

to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including

interference that may cause undesired operation.

Any changes or modifications not expressly approved by SICK AG could

void the user's authority to operate this equipment.

To address the FCC requirements the power supply cable as well as the

interface cable must be a shielded version. It need to be ensured, that

the shield is direct connected to the PG glant.

The FCC device is only addressing the FCC rules with the antenna

RFA331-1020 and RFA341-3520.

Usage of additional Filters required to address FCC rules. The number of

Filters required depends on the usage of external components/antennas:

1.) One antenna used direct at the antenna output of the RFI341 require

the usage of an FCC Filter at the RFI341 antenna output.

2.) If the splitter is used a Filter is required at the RFI341 antenna output

3.) If a Multiplexer is used a Filter need to be used at the RFI341

Antenna output and at each RF outputs of the Multiplexer.

RFI341-

1503S04

ANT

Filter

RFI341-

1503S04

ANT

Splitter

ANT

RFI341-

1503S04

ANT

Multiplexer

ANT

Filter

ANT ANT

Filter

Standard

one antenna Splitter

two antenna Multiplexer

1-4 antenna

Filter

RFI341 Radio Frequency Interrogator

Inside view RFI341-1503S04

The FCC Version require a shielded power supply cable.

Note

RFI341 Radio Frequency Interrogator

3.1.8 View of Details (Splitter)

3.1.9 View of Details (Mutliplexer)

Mux Control interface –

must be connected to the

RFI Mux Control output

Antenna Mux input –

must be connected to the

RFI341 antenna output

Mux – Antenna output 1 to 4

Antenna input – must be connected

to RFI341 antenna output Antenna output – each

5 x Tx in

owe

RFI341 Radio Frequency Interrogator

3.2 Functional Description of the device

The device operates according the reader/interrogator “talks first” (ITF)

method as defined in the ISO/IEC 15693 Standard. Each transponder in

the field remains silent until a request is received. The interrogator can

identify simultaneously a number of tags present in the antenna field. The

interrogator can write data to and read data from the transponders.

Transponders can be addressed by e.g. using the factory programmed,

unique read only number (64 bit length). If the data in the user memory of

the tag are not write protected, the read/write feature enables the

rewriting of the data stored in this memory.

The RFI341 is controlled by the data interface. The commands are

described in the document “Telegram Listing RFI341” which enables the

use of the features defined in ISO/IEC 15693. Additional commands

support the use of sensor inputs and/or actuators. After configuration the

device could either work in a mode where the host in controlling the unit

or in trigger mode. Configuration in trigger mode means: The device is

waiting for a start condition to start reading automatically. Reading results

will be transmitted directly or with closing the read window. If the device

is running in background mode only a valid escape sequence will

terminate this and brings the device back in command mode (see also

telegram listing).

To start a reading process, when an object with a transponder is in the

field, the RFI341 must be clocked by one of the following:

• A command sequence via the data interface

• The execution (based on a suitable trigger) of a previously

defined background command

If a transponder is detected, the relevant data can be send via the data

interface to the host. The “Data LED” indicates the presence of tag data.

Product Description

RFI341 Radio Frequency Interrogator

3.3 Operating Elements and Indicators

3.3.1 Operating Elements

The RFI341 is operated and configured via the data interface (host) using

the PC Demo Software (RS232), or command strings send via the host

interface. A variety of parameterisation options allows for the adaptation

of the device to a wide range of applications.

The following can be set:

ISO Settings including:

• Modulation depth

• Tag modulation type

• Tag data rate

• AFI (Application Field Identifier)

• DSFID (Data Storage Field Identifier)

RFI341 Settings Including:

• RF output power

• Communication parameters for the interface

• Switching on of the RF field (test)

• Port time-out value

Detailed information could be found in the telegram listing

Product Description

RFI341 Radio Frequency Interrogator

3.3.2 Function of the LEDs

The RFI341 does have several LEDs on the main PCB board. A few of

them could be useful for device service functions.

Closed to the terminals there is an indicator for:

• RXT and TXD (Data will be sent from and to Host)

• Input and output LED’s indicate the status of the IN/OUT ports

• LED bar indicates the SWR value if measurement manually

activated

Product Description

Out-1 Out-2 In-1 In-2LED: TXD RXD

Power LED‘s

LED’s for

SWR

measurement

RFI341 Radio Frequency Interrogator

4. Assembly

4.1 Overview about the Assembly Steps

• First, select the installation location for the RFA3xx antenna

• Select the installation location for the RFI341

• If used, select the installation location for the sensor(s)

4.2 Preparation for Installation

4.2.1 Component required

• RFI341

• RFA3xx (antenna)

• Antenna connector converter

• Probably a splitter or mulitplexer

4.2.2 Accessories

• Screws

• Reading pulse sensor (if used)

• Warning labels (if required, not included with the RFI341)

4.2.3 Selecting the Installation Location

For the selection of the installation location, the distance between the RFI341

and the RFA3xx antennas as well as the distance between the RFI341 and

the host are important.

Assembly

RFI341 Radio Frequency Interrogator

Distance Between the RFI341 and the Host

The RFI341 can be installed with a maximum data cable length depended on

the used interface and the chosen data rate (see chapter 5.4.1)

Distance Between the RFI341 and the RFA321 Antennas

The RFI341 can be installed at a maximum distance given by the antenna

cable length. Increasing the cable length will have an impact to the operating

performance.

4.2.4 Brackets

The housing can be mounted by using the pre-assembled mounting brackets

which are pre-mounted. The position of the brackets can not be changed by

the customer. The basic do have the brackets to the left and right whereas

the Profibus version does have them on the top and bottom.

Assembly

RFI341 Radio Frequency Interrogator

5. Electrical Installation

5.1 Overview of the Installation Steps

• Connect the RFI341 with the Antenna

• Connect the sensors to the RFI341 inputs (if used)

• Connect the actuators to the RFI341 outputs (if used)

• Connect the PC or Profibus data interface of the RFI341

• Connect the power supply to the RFI341

5.2 Electrical Connections (basic version)

The electrical connections of the RFI341 consist of:

• Socket for the RFA3xx antenna connection

• Mux-Control interface

• PG’s for cable connections for:

o Two galvanic separated switching input terminals with each a

separate reference

o Two switching outputs - 24 V DC in reference

o Three terminals for the RS 232 data interface, Ethernet RJ45

plug

o Two terminals for the main supply (24V DC) and Terminals for

grounding (PE)

See 5.4.5 / 5.4.6 for In- Output connections

Electrical Installation

RXD In

TXD out

GND

Out 1

GND

OUT 2

GND

IN 1

GND 1

IN 2

GND 2

+24V in

GND

Ethernet

FUSE 2A/T Power switch

RFI341 Radio Frequency Interrogator

5.3 Electrical Connections (M12 connectivity version)

The M12 Connectivity Version consist out of one PG plug for e.g. Ethernet

and M12 plugs for power, RS232, Output and 2 for the Trigger Input. The

individual pinning could be found on a sticker that is placed inside the device

door.

5.4 Preparations for Electrical Installation

5.4.1 Requirements for the RS-232 HOST interface

The host interface can be operated as a RS 232 data interface. The

maximum cable lengths are a function of the selected data transfer rate:

To prevent interference, do not lay the cable parallel to the mains supply and

motor cables over long distances, e.g., in cable ducts.

5.4.2 Requirements for the Profi-Bus interface

The Bus termination is realised with 3 resistors mounted at the terminals. If a

device is not the last station in a Profi-Bus network those resistors have to be

removed. The shielding need to be fixed with the available shielding

brackets at the PG glands.

Note

RFI341 Radio Frequency Interrogator

5.4.3 Main Power supply

The main power supply is 24V DC with a max input current of less than 2

Ampere (<50W). The power cable need to be shielded if the length extend

3m. The Shield need to be connected with the “Function earth”.

Power-up Delay

After the RFI341 is powered, the device will do an internal diagnostic. After

the diagnostic is finished the interrogator sends the start-up message or will

execute the background mode. This start-up time can be within a window of

less than 3 seconds. Refer to the document “Telegram Listing RFI341” for

details.

5.4.4 Connect the RS-232 interface

Risk of damage to the interface module!

Electronic components in the RFI341 can be damaged if the host is

connected incorrectly.

• Connect the host as shown in the figure above.

• Check the connections carefully before switching on the RFI341.

• Connect the host interface to the RFI341 using shielded cable (EMC

requirement). Ensure that the maximum cable length is not exceeded.

Parameter Value

Interface model RS 232

Data transfer rate 9600 bd (factory setting)

Start bit 1

Data bits 8

Stop bits 1

Parity No parity

Protocol SICK STX/ETX

Electrical Installation

RFI341 Radio Frequency Interrogator

5.4.5 Connecting the “Input 1” Switching Input

If a reading procedure of the RFI341 shall be triggered by an external

sensor, then the reading pulse sensor must be connected, e.g., to the Input 1

switching input. The triggering feature is set by the background function as

described in the document “Telegram Listing RFI341”. The GND1 is

galvanically separated. Therefore the reference for the Input 1 level must be

provided by the customer. OK1 not assembled.

Electrical Installation

Input 1

Gnd 1

Input 2

Gnd 2

+ 24V

GND

Scematic

External Sensor 1

External Sensor 2

Power supply

Switching Level

Imax,

U min,

U max

See 9.1 1

GND1 ≠ GND2

RFI341 Radio Frequency Interrogator

5.4.6 Connecting the Switching Output

The two switching outputs are completely user defined and controlled by

special command strings as described in the document “Telegram Listing

RFI341”. The maximum load current is 400 mA. The outputs are driven with

supply power (24V DC norminal). The output drivers are powered with the

DC input voltage of nominal 24V DC and with the Dc power supply

reference. There is a direct connection between VS0 clamp to 24V DC clamp

and from Gnd0 to GND. Optional the output driver could be driven with an

external power source. Please contact the application team for further

information.

5.4.7 Ethernet

By default the IP address will be organised by the DHCP server (dynamic mode). If

it is intended to use the device in static-IP-address mode the IP address and Subnet

Mask must be programmed before according to the used sub-net. For this please use

the available parameterisation software or the related STX/ETX commands as

described in the telegram-listing.

In Stand-Alone use with a Laptop an cross cable is required and the static IP address

must be used. In standard Network configuration a standard patch cable is required.

Scematic

GND

Out 1

GND

Out 2

GND

Supply Output

Output Level see 9.1

Remark: GND1 (In1) ≠GND2 (In2) ≠ GND (Out1/2)

RFI341 Radio Frequency Interrogator

5.5 Performing Electrical Installation (Basic-Version)

5.5.1 Overview of the Connection Procedure

• Connect the earth grounding

• Connect the RS-232 data interface or the Ethernet Interface

• Connect the switching inputs “Input 1 and 2”, if necessary

• Connect the switching outputs “Output 1 and 2”, if necessary

• Connect the splitter to the RFI341 if required

• Connect the multiplexer to the device using the Mux-control interface, if

required

• Connect the RFA3xx antenna(s)

• Connect the main supply of 24V DC

5.6 Performing Electrical Installation (Profibus-Version)

5.6.1 Overview of the Connection Procedure

• Connect the earth grounding

• Connect the RS-232 data interface or the Profibus Interface

• Connect the switching inputs “Input 1 and 2”, if necessary

• Connect the switching outputs “Output 1 and 2”, if necessary

• Connect the RFA321 antenna

• Connect the mains supply 24V DC

5.6.2 Connect the earth ground

Electrical Installation

RFI341 Radio Frequency Interrogator

5.6.3 Connect the RS232 Interface

If the RS-232 interface is intended to be use, e.g for parameterisation with

the SICK software, it needs to be ensured that the Profibus interface

interface is disabled (switch at the CMF, see CMF documentation).

5.6.4 Connect the Profi-Bus Interface

If the Profibus interface should be used than the terminals needs to be

connected. Dependent of the position in a network the terminal resistors

need to be removed. For detailed information please refer to the CMF

gateway documentation (8010461). The max datarate of the Profibus

interface is limited to 1,5Mbit/sec.

RFI341 Radio Frequency Interrogator

6. Operation

6.1 Overview of the Start-up Steps

• Start the RFI341 with the default settings (Quick start)

• Connect to the PC or HOST

• Use the Demo/Parameterisation-Software to run the device or

• Control the device by using the related command strings or

• Configure (parameterise) the RFI341 for the desired application

6.2 Factory Default Settings

The table below shows the factory setting of the RFI341. The factory default

parameters are such that the RFI341 can be put into operation immediately

or following a few minor adjustments.

The default settings of the parameters are stored permanently in the RFI341

EEPROM memory. To display the stored settings, use either the PC and

execute the “REQUEST SYSTEM SETTINGS, 1010” command as described

in the document “Telegram Listing RFI341” or the PC Software and request

the display of the system settings. To change the settings, use the software

“EDIT SYSTEM SETTINGS, 1011” command.

Operation

RFI341 Radio Frequency Interrogator

6.3 Configuration (Parameterisation)

The RFI341 is configured locally in accordance with the existing application.

The read, evaluation and output characteristic, can be parameterised as

required. The factory default settings or the application specific parameter

set is in affect before changes are made.

The RFI341 can be configured by using either the PC Demo Software or the

specific commands sent by the user host software.

6.3.1 Antenna Output Power

The output power of the RFA3xx antennas can be changed in four steps.

When the maximum power is not required to meet the system requirements,

this can be used to prevent reader interference.

(available steps: 4W / 2W / 1W / 0,75W )

6.3.2 RS232 Data Interface

The RS 232 data interface data rate can be set to different speeds. The

RFI341 supports the following settings.

Protocol

Operation

RFI341 Radio Frequency Interrogator

6.3.3 Oscillator Switch off delay

Switching off the HF-field results in a power-on reset of all tags present in the

reader field. The length of time set should be checked very carefully. In the

worse case scenario, the tags which are in the selected or quiet mode will

loose this status. Depending on the application, it could be necessary to set

this time to a lower value. The factory default setting is 500 ms.

6.3.4 Read after Write Verify

The interrogator can be set so that it will automatically execute a read after

write if data is written to the transponder. This requires some time and the

user can define whether or not he wants to receive this verification. The

factory default setting is set “ON”.

6.3.5 HF Reset for Inventory Commands

Setting this feature to “ON” results in a HF reset before an inventory

command is executed. The factory default setting is “ON”.

Operation

RFI341 Radio Frequency Interrogator

6.4 ISO/IEC 15693 settings

The ISO/IEC 15693 Standard allows various settings. To configure correctly

for the specific application, it is recommended that the user have a basic

understanding of the features described in this standard. Supported functions

are:

• Changing of the forward link modulation depth. The factory

default setting is 20/100 %

• Changing of the return link modulation type (ASK/FSK). The factory

default setting is FSK.

• Transponder response data rate (high or low). The factory default setting

is high.

• AFI (Application Field Identifier). If this byte is set to 00h, the interrogator

will ignore the AFI, otherwise it will use the set value.

• Inverse UID (start with the LSB instead the MSB). The factory default

setting is reverse byte order.

• One Slot inventory: If this value is set to one, the inventory command will

start with one time-slot.

• Others (refer to document “Telegram Listing RFI341”)

Operation

RFI341 Radio Frequency Interrogator

7. Maintanance

7.1 Maintenance

The RFI341 does not require maintenance.

7.2 Disposal

Irreparable devices or devices that are no longer required are to be disposed

of in an environmentally-friendly manner:

1. Always observe the applicable national waste disposal regulations.

2. Remove the RFI341 housing.

3. Remove the electronic modules and the connection cables.

4. Send the metal housing to be recycled.

5. Send the electronic modules and connection cables for disposal as special

waste. At present, SICK AG does not accept the returning of unusable or

irreparable devices.

Maintanance

RFI341 Radio Frequency Interrogator

8. Troubleshooting

8.1 Installation errors

The RFA3xx antenna is installed incorrectly with respect to the object

carrying the transponder, e.g., the relationship between the transmitted

power, antenna size and transponder form factor is unfavourable.

• The RFA3xx antenna is installed close to metal that de-

tunes the antenna circuit. This can be checked either by

the SWR measurement inside the device. To start this

the background function need to be interrupted. Than

the SWR bottom need to be switched. The LED bar

indicates the SWR status. In addition a beeper signals

with frequency the status (high frequency is good, low

frequency is bad). Tuning is possible by inside antenna

tunable capacitors.

• The trigger sensor is positioned incorrectly.

• Other interrogator antennas are causing interference.

8.2 Electrical Connection Errors

• Interfaces on the RFI341 are connected incorrectly.

8.3 Parameterisation Errors

• Functions are not adjusted to local conditions, e.g., communication

parameters for the host interface are set incorrectly.

• ISO or system settings are not in accordance with the transponders

used, e.g., wrong AFI used..

Troubleshooting

RFI341 Radio Frequency Interrogator

9. Technical Data

9.1 RFI341-1503

Type RFI341 Host/Data Interface

Protocol STX/ETX (see document “ RFI341

Telegram Listing 8011237 ”)

Terminal data interface RS-232 9,600 baud to 115kbaud, start, stop, no

parity (8N1)

Ethernet TCP/IP - 10/100Mbit

RF Interface Carrier Frequency 13.56 MHz

(13.553 to 13.567 MHz)

RF output power (max) 4 W (±1 dB)

Switching Inputs Vinhigh max = 30 V,

Vinhigh typ = 24 V,

Vinhigh min = 18 V,

Vinlow max = 1,5 V

Iinmax < 4mA

Switching Outputs Vout = Vin (power supply) – <=1V

Iout max = 400mA restive load ; short cut

and overload protected

Mains power supply Operating Voltage 24V DC (20..29V);

- slope time < 3 sec

- start up time < 4 sec.

Supply Current < 2,0A

Protection Class 3

Mechanical

Housing (dimensions) except stainless

steal where the with is 210mm instead of

200mm

300 mm x 200 mm x 120 mm

(15.8 in x 7.9 in x 4,7 in)

Antenna Connector BNC (standard and M12 version)

TNC (stainless steel version)

Enclosure rating / protection class IP65 (standard and M12 version)

IP66 (stainless steel version)

Operation temperature -20 °C to 50 °C

Storage temperature -20 °C to 60 °C (-4 °F to 142 °F)

Colour SICK blue RAL5012 (standard an M12

Version)

Without paint (stainless steel version)

Mechanic IEC 60068-2-64 (10..500 Hz;1 grms)

Technical Data

RFI341 Radio Frequency Interrogator

Warning! This is a device for usage in Class A. Therefore radio interference could

appear in living quarters.

9.2 Dimensional Drawing

Standard and M12 Version do have the brackets to the side whereas the stainless steel

version do have it to the top and bottom like shown in the picture below

Drill template (standard version) (stainless steel version)

220mm

260mm

160mm

320mm

RFI341 Radio Frequency Interrogator

10. Appendix

10.1 Accessories

Antenna(s) RFA3xx

Splitter

Multiplexers

Antenna connector converter

RS232 cable (open end)

RS232 cable (M12 / SUBD9)

Mux-Control cable

Transponder

10.2 Glossary, Standard Basics, and Abbreviations

Amplitude Modulation

A method of combining an information signal and a RF carrier with a different

voltage level assigned to a digital 0 and 1.

Antenna

A radio frequency transducer.

Antenna de-tuning

Relative to RFID implementations, the reduction in the amount of energy that

is available to power a tag or the reduction of the amplitude of the signal

reaching the reader due to the environment.

Anticollision

See collision avoidance. Collision avoidance algorithm. RFID interrogator

firmware that intercepts multiple simultaneous tag signals, sorts responses

and initiate a communication protocol to sequentially collect the information.

Frequency

The number of repetitions of a complete waveform in a specific period of

time.1 kHz equals 1,000 complete waveforms in one second. 1 MHz equals

one million waveforms per second.

DSFID

Data Storage Format IDentifier

EOF

RFI341 Radio Frequency Interrogator

End of Frame

Host computer

The computer running software that interacts with the RFID and other

devices such as a warehouse management system.

Integrated Circuit

Inductive coupling

Method of creating a current in a conductor without connecting it directly to a

power source. A tag responses to a reader by inductively coupling with the

reader carrier signal.

Interference

Any environmental condition that creates electrical noise at the same

frequency as the communication signal.

Interrogator

Another term for a reader.

ITF

Interrogator Talks First

LSB

Least Significant Bit

Modulation index

An index equal to (a-b)/(a+b) where a and b are the peak and the minimum

signal amplitudes respectively.

MSB

Most Significant Bit

Passive RFID tag

Passive tags do not have an on-board powered transmitter. They are

activated by the electromagnetic waves of a reader.

PPM

Pulse Position Modulation

Reader

Also called an interrogator. The reader communicates with the RFID tag and

passes the information in digital form to a host computer system.

Read range

The distance from which a reader can communicate with a tag. The range is

influenced by the power of the reader, antenna size, transponder form factor

and environmental conditions.

RFI341 Radio Frequency Interrogator

RFID

Radio Frequency IDentification. A method of tracking using radio waves that

trigger a response from a device attached to an item.

SOF

Start of Frame

Subcarrier

A signal of frequency fs used to modulate the carrier of frequency f0

Tag

A generic term for radio frequency identification device

UID

Universal IDentification code

10.3 ISO/IEC 15693 – ISO/IEC 18000-3 Mode 1 Basics

The ISO/IEC 15693 is one of a series of international standards describing

the parameters for identification cards as defined in ISO/IEC 7810 and the

use of such cards for international interchange.

The ISO/IEC 15693 is intended to allow operation of vicinity cards in the

presence of other contactless cards conforming to the ISO/IEC 10534 and

ISO/IEC 14443 standards.

The ISO/IEC 18000 series is defined mainly for item management. The Part

3, Mode 1 is compatible with ISO/IEC 15693.

This summary should be used only as a basis for understanding the features

given by the ISO/IEC15693 standard. The full documentation can be ordered

from ISO/IEC.

RFI341 Radio Frequency Interrogator

ISO/IEC 15693-2 Air Interface and Initialisation

This part of ISO/IEC 15693 describes the electrical characteristics of the

contactless interface between the transponder and the interrogator. The

interface includes power and bi-directional communications.

Initial Dialog for ISO15693 Transponder

• Activating of the transponder (interrogator RF power on)

• Transponder waiting for a command from the interrogator (ITF)

• Receiving the command from the interrogator

• Transmitting the response to the interrogator

Power Transfer

The power transfer from the interrogator antenna to the transponder is

accomplished by radio frequency via coupling antennas. The RF operating

field that supplies power to the transponder from the interrogator is

modulated for communication.

Frequency

The transponder frequency is 13.56 MHz ± 7 kHz

Communications Signal Interface

For some parameters, special modes are available to comply with different

international radio regulations and application requirements.

Modulation

Communications between interrogator and transponders takes place using

the ASK modulation principle. If the modulation index is set to 100 %, the

noise sensitivity is less. A modulation index of, e.g., 20 % will increase the

read/write performance but also increase the noise sensitivity.

Data Rate and Data Encoding

The transponder support two data coding modes

(1 out of 4 at 26.48 kbit/sec and 1 out of 256 at 1.65 kbit/sec).

RFI341 Radio Frequency Interrogator

ISO/IEC 15693-3 Anticollision and Transmission Protocol

This part of ISO/IEC 15693 describes the anticollision and transmission

protocols.

The anticollision is based on a UID that each tag supports. The length of this

ID is 64 bits and it is guaranteed by the manufacture of the IC that the ID is

unique

AFI

The Application Field Identifier (AFI) should – if available – represent the

application for which the transponder is used. It can be programmed and

locked within the transponder with the commands given in the document

“Telegram Listing RFI341”.The AFI consists of 8 bits. If no applicable

preselection is possible, use “0h”..

The support of the AFI feature is optional. That means it is possible that ISO

15693 compliant transponders do not offer this AFI feature. It is recommend

that only those transponders that offer this AFI byte be used.

Therefore, check carefully the selection of the transponder IC type and the

requirements given by the application.

DSFID

The Data Storage Format Identifier (DSFID, 8 bit) can be used to indicate in

which manner the user data is structured in the user memory. If no DSFID is

used, this value should be “0h”.

Anticollision

The purpose of the anticollision is to make an inventory of the transponders

present in the field by using their UIDs.

The anticollision is based on slots. The interrogator can use one or sixteen

slots. If the interrogator wants to ensure that tags are present for an

anticollision or knows that only one transponder is present in the field, the

slot length of one is adequate.

If additional transponders are in the field, the interrogator will detect this by a

erroneous CRC.

If more than one tag is in the field and the interrogator uses the 16 slots,

each transponder will calculate a number (with help from UID) between 1

and 16 and replies in a special slot. It can occur that more than one tag

replies in the same slot.

RFI341 Radio Frequency Interrogator

In this case, the interrogator will skip to the next slot. Within the next

inventory session, these transponders will participate whereas those that

have been successfully read (UID) could be not present – depending on the

function, which may set these transponders to the quiet stage. This process

could be repeated until all transponders are identified. Tags colliding in a slot

could be separated with masks according to ISO Standard.

Command Codes

The ISO 15693 requires that only two commands to be mandatory in an IC.

These are “Inventory and Stay quiet”. All other commands are defined but

optional.

Therefore, ensure that the tag used supports the application requirements.

These include:

• Read and write feature

• Lock block feature

• Read and write of multiple blocks

• AFI and DSFID features

RFI341 Radio Frequency Interrogator

Sick RFI3411503S04 RFID (Radio frequency interrogator) User Manual Users manual

Sick AG RFID (Radio frequency interrogator) Users manual

Users manual

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