Error Indicators; Troubleshooting - Omron C200HW-CORT21-V1 Operation Manual

Error Indicators

7-1

Error Indicators

7-2

Troubleshooting

PLC Errors
Description
An I/O verification The current PLC configuration is not the same
error occurred. as it was when the I/O table was registered.
An I/O Unit Over The MACHINE No. rotary switch setting is
error occurred. incorrect.
Two Units claim the same Machine number.
A Special I/O Unit The Unit is not connected properly or was
error occurred. removed while the power was on.
An I/O Bus error The Unit is not connected properly.
occurred.
The Unit is defective.
98
Refer to section 6 for a detailed description of the error indicators of the
C200HW-CORT21-V1.
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.
Possible cause Possible remedy
Check the I/O table with the I/O table
verification operation
necessary. After correction, perform the I/O
Table Create operation.
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.
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.
Turn the power off, make sure that the Unit is
connected properly and turn the power on
again.
Turn the power off, make sure that the Unit is
connected properly and turn the power on
again.
Replace the C200HW-CORT21-V1.
Section 7-1
and correct it if