Chapter 8 Ch8

User Manual: Chapter 8 C-more Micro-Graphic Panel User Manual and Quick Start Guide

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Electrical Noise Problems
Panel Errors
C-more Micro-Graphic Panel Runtime Errors
Panel & PLC Error Codes
No Communications between Panel and PLC
No Communications between Panel and PC (Personal Computer)
Lost Firmware – Red ‘Update Mode’ Screen Displayed
No User Program
Display is Dim
Display is Blank
C-more Micro-Graphic Panel does not Power up

TroubleshooTing

Chapter

In this Chapter...

C-more Micro-Graphic Panel does not Power up ............................................... 8-2

Display is Blank ................................................................................................... 8-2

Display is Dim ..................................................................................................... 8-3

No User Program ................................................................................................. 8-3

Lost Firmware – Red ‘Update Mode’ Screen Displayed ..................................... 8-4

No Communications between Panel and PC (Personal Computer) .................. 8-5

No Communications between Panel and PLC ................................................... 8-7

Panel & PLC Error Codes ................................................................................... 8-8

C-more Micro-Graphic Panel Runtime Errors .................................................... 8-9

Panel Errors .......................................................................................................... 8-9

Electrical Noise Problems .................................................................................. 8-10

8-2

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Troubleshooting

The following are some common problems that may be encountered during the installation

and operation of your C-more® Micro-Graphic panel. We have made some suggestions on

what to check in order to correct the problem.

C-more Micro-Graphic Panel does not Power up

Powered from 5 VDC: If the panel’s display is blank, not responding, and the panel is powered

from a 5 VDC power source, check the incoming DC voltage level with a voltmeter. The DC

voltage level should be in the range of 4.75 to 5.25 VDC. If the incoming DC voltage is zero,

check any fusing that may be in the circuit. If the fuse is open, determine cause and replace.

Powered from 12-24 VDC: If the panel’s display is blank, not responding, and the panel is

powered from one of the optional DC Power Adapter modules, such as an EA-MG-P1 or

EA-MG-SP1, check the incoming DC voltage level to the adapter with a voltmeter. The DC

voltage level to the adapter should be in the range of 10.8-26.4 VDC. If the incoming DC

voltage is zero, check any fusing that may be in the circuit. If the fuse is open, determine cause

and replace.

Display is Blank

Also if the panel’s display is blank, check the TxD and RxD indicators on the back side of the

panel while the panel is communicating with the PLC. The LED indicators should be on or

flashing at a fast rate. Indicator activity shows that the panel is communicating with the PLC.

If there is communication activity, but the display is still blank, there is the possibility the

program in the PLC is controlling the display. Try pressing the F1 and F5 keys simultaneously

for 3 seconds. The panel should display the System Setup Screen menu if the screen is being

forced to display a blank by the PLC program, or check the PLC program, it may have the

screen in the off state by placing a 0 in the current screen tag.

Chapter 8: Troubleshooting

TxD

Indicator

RxD

Indicator

8-3

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Display is Dim

Press the F1 and F5 keys simultaneously for 3 seconds to access the System Setup Screen menu.

Select the Setting menu, and then select item 1, LCD Contrast. The default value is 3. Adjust

the current value from 1 to 5 and the panel’s contrast should become greater as the value moves

toward 5 and it should become less as the value moves toward 1. If this does not happen, then

the panel may need to be replaced.

No User Program

If the panel is displaying the message “No User Program” after it is powered up, then there is

no project downloaded into the panel. Using the EA-MG-PGMSW C-more Micro-Graphic

Programming Software, download your project to the panel.

Chapter 8: Troubleshooting

NXT UP DWN ENT

SETTING

Backlight

Beep

Calibration

LCD Contrast>

F1 F2 F3 F4 F5

Clear User Memory

BAK

LCD CONTRAST

F1 F2 F3 F4 F5

-- UP DWN APL

Current Value:

BAK

BAK –UP DWN ENT

SETUP MENU

Setting

Test Menu

Exit

Information

F1 F2 F3 F4 F5

NO USER PROGRAM

8-4

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Lost Firmware – Red ‘Update Mode’ Screen Displayed

If the C-more Micro-Graphic panel’s firmware becomes corrupted or for some reason is lost

from the panel’s memory, the panel will display the Update Mode screen as shown below. This

can happen if communication between the PC and the panel is interrupted during a firmware

update from the programming software. To resolve the problem, try the following steps in the

order shown:

1.) Cycle power to the panel.

2.) Attempt to reload the firmware to the panel using the Update Firmware utility under the

Panel pull down menu in the EA-MG-PGMSW Programming Software.

3.) If the firmware update is not successful, depress function keys F1 and F5 while cycling

power to the panel. The panel should come up in the red Update Mode screen as shown

below. Perform Step 2 again.

4.) Call Tech Support @ 770-844-4200.

Chapter 8: Troubleshooting

= Update Mode =

F1 F2 F3 F4 F5

Port1 [ 6pin]

115.2K/8/0/1

Port2 [15pin]

115.2K/8/0/1

Data Change Push Key1

8-5

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Chapter 8: Troubleshooting

No Communications between Panel and PC (Personal Computer)

The C-more Micro-Graphic panel is programmed using the C-more Micro-Graphic

Programming Software, EA-MG-PGMSW. The developed project is transferred from the

PC to the panel by a USB to RS-232 serial communications cable. The EA-MG-PGM-CBL

Serial Programming Cable Assembly can be used to accomplish the interface between the PC

and panel. Installing the programming software also installs a USB driver on the PC. When

properly installed the programming cable will look like a serial communications port to the PC.

NOTE: The panel has one built-in RJ12 serial communications port (Port 1 - RS-232) and the option to add

one 15-pin serial communications port (Port 2 - RS-232/422/485) to the panel by installing the EA-MG-SP1

module. Only one of the ports can be used with a connected PLC. The programming software allows the

user to select either Comm. Port1 or Comm. Port2 under the Panel Manager dialog box. When using Port

2 to communicate with the connected PLC, Port 1 can still be used with the EA-MG-PGM-CBL Software

Programming Cable Assembly to transfer projects between the PC and panel.

NOTE: If either DC power adapter is installed on the panel, the adapter must be powered and the panel not

dependent on +5 VDC from the PLC’s RJ12 comm port.

No communications between panel and PC continued top of next page.

C-more

Micro-Graphic

Panel

PC to Panel Programming

Cable Assembly

(Includes serial & USB cables)

p/n EA-MG-PGM-CBL

USB to RS232

Converter

USB

Cable

User PC

Serial

Cable

USB to RS-232 Programming Cable Assembly

8-6

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

No Communications between Panel and PC (Personal Computer) (cont’d)

There are three possible causes that prevent transferring the project to the C-more Micro-

Graphic panel.

1. Panel not on setup screen (press F1 and F5) - Press and hold the F1 and F5 buttons

simultaneously for three seconds to enter the setup screen.

2. Cable not connected - Double check the programming cable asembly to make sure the panel is

correctly connected to the USB port on the PC.

3. Not using the correct com port assigned to the USB adapter - If the C-more Micro-Graphic panel

is on the setup screen and the cable connection

is correct, then check the PC COM port setting.

If you are unsure which COM port the C-more

Micro-Gaphic programming cable is connected

to, click on the Device Manager button. This will

open Windows ® Device Manager.

In the Device Manager window, view the active

avaiable ports by clicking the + button beside

the Ports (COM & LPT) menu item. The

C-more Micro-Graphic panel uses a USB driver

called Koyo USB-Serial Comm Port. COM4

is the comm port used in this example. If you

cannot find the Koyo USB-Serial Comm Port under

the Ports (COM & LBT) menu item in Device

Manager, the USB driver may not be correctly

installed or the driver has a problem. See the

software installation manual for details on installing

the Koyo USB-Serial Comm Port driver. If you have

selected the correct COM port and the error still

occurs, try connecting the programming cable to a

different USB port on the PC and try again.

If the program persists, call Technical Support at

(770) 844-4200, available from 9:00 A.M. to 6:00

P.M. Eastern Time.

Chapter 8: Troubleshooting

8-7

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Chapter 8: Troubleshooting

No Communications between Panel and PLC

The communications between the C-more Micro-Graphic panel and a designated PLC

or controlling device can be accomplished using the panel’s built-in RS-232 RJ12 serial

communications port (Port 1) or by installing a EA-MG-SP1 Serial Port with DC Power

Adapter module (Port 2) to the rear of the panel. The EA-MG-SP1 includes a 15-pin connector

that can be connected for RS-232, RS-485 or RS-422.

Port 1: If you are using Port 1

then check the Txd and Rxd status

indicators on the back side of the

panel. They should be on or flashing

at a fast rate. If there is activity on the

LED indicators, then the panel and

PLC are communicating. Location of

Port 1’s LED status indicators shown

to the right.

Port 2: If you are using Port 2

then check the Txd and Rxd status

indicators on the back side of the

EA-MG-SP1 Serial Port with DC

Power Adapter. They should be on or

flashing at a fast rate. If there is activity

on the LED indicators, then the

panel and PLC are communicating.

Location of Port 2’s LED status

indicators shown to the right.

On either serial communications

port, if there is no activity on one or both TxD and RxD LED status indicators, then:

• Verify that the communication settings are correct in the panel manager

• Test or replace the cable.

• Test the panel or adapter’s serial port (Page 5-14 & 5-15).

• Test the serial port on the PLC.

Electrical noise, pulse generating wiring and/or improper grounding can also cause problems

with communications. Refer to the Electrical Noise Problems section in this chapter for

additional help if electrical noise is suspected.

TxD

Indicator

RxD

Indicator

TxD

Indicator

RxD

Indicator

Port 2

8-8

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Panel & PLC Error Codes

The C-more Micro-Graphic panel includes built-in PLC communication protocol diagnostics

that monitor the exchange of data between the panel and the PLC. The diagnostics look for the

proper exchange of data, correct handshaking signals, addressing errors, incorrect data bytes,

wrong packet format, etc. The diagnostics also monitor and display any of the errors that the

designated PLC would normally generate if there is a problem with the PLC’s communications.

The PLC generated errors are interpreted by the C-more Micro-Graphic programming software

and are displayed across the top of the panel’s display embedded as a hexadecimal value in error

code P499.

If a C-more Micro-Graphic communications error does occur, the error message will be

displayed in the upper left of the panel’s display screen along with the error code number. The

error code with error message will blink off and on. A detailed list and description of the various

PLC protocol errors can be found in Appendix A: Panel & PLC Error Code Tables.

Panel Error Code Table Example:

PLC Error Code Table Example:

Note: See Appendix A: Panel & PLC Error Code Tables for a complete list of all error codes.

Chapter 8: Troubleshooting

C-more Micro-Graphic Panel Error Table

Error Code Error Message Cause

P001 PLC Com Time Out A timeout occurred after sending a request to the PLC.

P499 ErrCode Received ->

Recv .Err Code XXXX

A PLC generated error code with a hexadecimal value of XXXX has been

returned from the PLC.

Panel Communications

Error Code Example

F1 F2 F3 F4 F5

P001: PLC COM Time Out

Stop

Start

PLC Error Codes for Direct LOGIC – ModBus (Koyo)

Panel Error Code

P499 Hex Value Description

0x1 The function code is unknown by the server.

0x4 The server failed during the execution.

8-9

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Chapter 8: Troubleshooting

C-more Micro-Graphic Panel Runtime Errors

The C-more Micro-Graphic panel includes built-in diagnostics that check for proper operation

of the panel when it is running a project that has been transferred to its memory. Faults

detected while the panel is running will produce a “Runtime” error. These errors are displayed

in a popup window in the center of the panel’s display.

Troubleshooting a Panel Runtime Error:

Follow these steps to troubleshoot a panel runtime error.

1. Check the panel cable connections.

2. Cycle power at the panel.

3. Resend the project.

4. If the error still occurs, reset the panel back to factory default. Refer to Chapter 5 for details

NOTE: User memory is cleared when factory defaults are reset. Use the C-more Micro-Graphic

programming software to read the program from the panel and save a backup copy.

Panel Errors

If more than one panel error occurs, each error message will display sequentially for three

seconds with a two second delay between each message.

When only one panel error is active, that message will display continuously until it is no longer

active.

Micro-Graphic Panel Errors

Error Code Error Message Possible Solutions

R001 PC software tool Timeout Check cables and connections.

Cycle power at the panel.

See Chapter 8 for Electrical Noise Problems.

Check the area for sources of noise: electrical motors, transformers, etc.

Check for proper grounding

Resend the project.

R002 CRC Error occurred during

project transfer from PC.

R003 Project Check Sum Error.

Resend Project file to Panel. Cycle power.

Resend the project.

R004 Protocol Module Check Sum

Error. Resend Project File to

Panel

R005 Panel Check Sum Error. Panel

Info (Not Project) will be

initialized. From the Setup Menu screen, reset panel options.

R006 SW Ver. Mismatch. Use

software Ver.xx.xx. Update to current version programming software and panel firmware.

R100 Option module detected

without external power

EA-MG-SP1 or EA-MG-P1 optional power adapter module is installed on

a C-more 3” Micro-Graphic panel without a 12-24 VDC power source.

Provide 12-24 VDC power to the optional module.

R101 Unsupported module detected EA-MG-SP1 or EA-MG-P1 optional power adapter module for a C-more

3” Micro-Graphic panel is installed on a C-more 6” Micro-Graphic panel.

Remove the EA-MG-SP1 or EA-MG-P1.

8-10

Chapter 8: Troubleshooting

EA1-MG-USER-M Hardware User Manual, 2nd Ed. Rev. D, 08/17

Electrical Noise Problems

Noise is one of the most difficult problems to diagnose. Electrical noise can enter a system in

many different ways which fall into one of two categories, conducted or radiated. It may be

difficult to determine how the noise is entering the system but the corrective actions for either

of the types of noise problems are similar.

• Conducted noise is when the electrical interference is introduced into the system by way of an attached

wire, panel connection, etc. It may enter through a power supply connection, the communication

ground connection, or the chassis ground connection.

• Radiated noise is when the electrical interference is introduced into the system without a direct

electrical connection, much in the same manner as radio waves.

While electrical noise cannot be eliminated, it can be reduced to a level that will not affect the

system.

• Most noise problems result from improper grounding of the system. A good earth ground can be the

single most effective way to correct noise problems. If a ground is not available, install a ground rod

as close to the system as possible. Ensure all ground wires are single point grounds and are not daisy

chained from one device to another. Ground metal enclosures around the system. A loose wire can

act as a large antenna, introducing noise into the system. Therefore, tighten all connections in your

system. Loose ground wires are more susceptible to noise than the other wires in your system. Review

Chapter 4: Installation & Wiring if you have questions regarding how to ground the touch panel.

• Electrical noise can enter the system through the power source for the C-more Micro-Graphic panel.

Installing a properly wired isolation transformer (neutral grounded) for all AC sources can help the

problem, but only if wired correctly. DC sources should be well-grounded good quality supplies.

• Never run communication cables or low-voltage power wiring close to high voltage wiring or pulse

generating wiring that controls such devices as solenoids, servos, VFOs, etc.

Selecting a lower communication rate in Panel Manager may help the panel resist noise.

Chapter 8: Troubleshooting

Chapter 8 Ch8

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