Omron SYSMAC CJ1W-EIP21, Operation Manuals

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13-37
13 Troubleshooting
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
13-5 Even
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g
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13
13-5-3 Error Descr
iptions
Event name Non-volatile Memory Error Event code 047B 0000 hex
Meaning An error occurred in non-volatile memory.
Source PLC Function Module Source details CJ-series Unit Detection
timing Continuously
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation The Unit will stop if this error is detected in self-diagnosis
when the power supply is turned ON. Operation continues
if the error occurs during operation.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
There is a source of noise nearby. Remove any nearby sources of noise. Use the Unit away from sources of
noise. Implement noise countermea-
sures.
Non-volatile memory failure If the above cause does not apply,
replace the Unit. None
Attached
information None
Precautions/
Remarks None
Event name Communications Controller Error Event code 047C 0000 hex
Meaning An error occurred in the communications controller.
Source PLC Function Module Source details CJ-series Unit Detection
timing After link is
established
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation The EtherNet/IP Unit is offline. Communications are not
possible. Error responses are returned to all communica-
tions requests. Data refreshing with the CPU Unit contin-
ues.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
Noise Cycle the power supply to the Con-
troller. Implement noise countermea-
sures. Use the Unit away from sources of
noise. Implement noise countermea-
sures.
Communications Controller hardware
error If the error occurs even after perform-
ing the actions described above,
replace the EtherNet/IP Unit. None
Attached
information None
Precautions/
Remarks None