Omron C200HW-CORT21-V1, Operation Manual

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Error Indicators
Section 7-1
98
7-1 Error Indicators
Refer to section 6 for a detailed description of the error indicators of the
C200HW-CORT21-V1.
7-2 Troubleshooting
Possible problems have been divided into the following categories:
•
PLC Errors
•
Start-up problems
•
Configuration problems
•
I/O data communication problems
•
Message communication problems
General Note: when replacing the C200HW-CORT21-V1, make sure that any
CANopen configuration data that was stored in the Unit's non-volatile
memory is written to the new Unit before putting the system in operation.
PLC Errors
Description Possible cause Possible remedy
An I/O verification
error occurred. The current PLC configuration is not the same
as it was when the I/O table was registered. Check the I/O table with the I/O table
verification operation and correct it if
necessary. After correction, perform the I/O
Table Create operation.
An I/O Unit Over
error occurred. The MACHINE No. rotary switch setting is
incorrect. Make sure that the setting does not exceed
the maximum allowed Unit number. See
section 3-1-3.
If the Machine number exceeds the PLC's
limit, adjust the Machine number and restart
the Unit.
Make sure that the PLC program and DM
settings are adapted to the new Machine
number.
Two Units claim the same Machine number. Adjust the MACHINE No. switch setting and
restart the Unit.
Make sure that the PLC program and DM
settings are adapted to the new Machine
number.
A Special I/O Unit
error occurred. The Unit is not connected properly or was
removed while the power was on. Turn the power off, make sure that the Unit is
connected properly and turn the power on
again.
An I/O Bus error
occurred. The Unit is not connected properly. Turn the power off, make sure that the Unit is
connected properly and turn the power on
again.
The Unit is defective. Replace the C200HW-CORT21-V1.