Error Causes And Remedies For Synchronous Unit Operation Settings - Omron CJ2 CPU UNIT User Manual

6 Troubleshooting

Error Causes and Remedies for Synchronous Unit Operation Settings

Suspected cause of
error
A Unit set in the synchro-
nous unit operation set-
tings does not support
synchronous unit opera-
tion.
A Unit set in the synchro-
nous unit operation set-
tings does not exist in the
PLC.
A Unit set in the synchro-
nous unit operation set-
tings does not exist on the
CPU Rack (i.e., it is on an
Expansion Rack).
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 operation man-
ual for the Unit.
Check the Units in the
PLC.
Check the Units in the
PLC.
Confirmation method
Check the Units in the
PLC.
Remedy
Transfer the settings
again.
Transfer the settings
again.
Move the Synchronous
Unit to the CPU Rack.
If I/O tables have been
registered, change the
registered I/O tables.
Remedy
Correct the I/O table set-
tings.
CJ2 CPU Unit Hardware User's Manual
Prevention of recur-
rence
Same as at the left.
Same as at the left.
Same as at the left.
Prevention of recur-
rence
Same as at the left.