Omron CJ1W-DRM21 Operation Manual page 282

9 Troubleshooting and Maintenance
Event name Scan List Register/Clear Failed
Meaning An operating error occurred when registering or clearing the scan list by performing one of the following operations.
• Scan List Enable Switch (device variable *_Sw1SListEnblCmd)
• Scan List Clear Switch (device variable *_Sw1SListClrCmd)
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
CPU Unit is not in PROGRAM mode.
Request processing is not possible in
this status or the request was made
when the operation was already in
progress. The following are the main
causes of Unit status errors.
• A software switch operation for the
master function was executed when
the master function was disabled.
• A switch that can be used only
when the scan list is disabled was
used when the scan list was
enabled.
• A switch that can be used only
when the scan list is enables was
used when the scan list was dis-
abled.
• A software switch operation for the
slave function was executed when
the slave function was disabled.
A configuration error has occurred.
There is an error in the parameters
specified in the user settings, and the
requested setting could not be made.
More than one software switch
changed to TRUE at the same time.
Or, another software switch changed
to TRUE before processing was com-
pleted for a previous software switch.
Attached None
information
Precautions/ None
Remarks
9-52
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
Change the CPU Unit to PROGRAM
mode before executing a software
switch operation.
Change to a status that supports soft-
ware switch operations.
Remove the cause of the configura-
tion error, check that the error does
not occur, and then register the scan
list again.
Correct the parameter settings in the
user settings and execute the soft-
ware switch operation again.
Execute the software switch opera-
tions one at a time.
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Event code 7462 0000 hex
CJ-series Unit Detection
timing
Error reset Log category
Not affected.
Name
---
Prevention
Change the CPU Unit to PROGRAM
mode before executing a software
switch operation.
Use the software switches only when
the current status permits them.
Make sure that the configuration is
correct.
Set the correct parameter settings in
the user settings and execute the
software switch operation again.
Execute the software switch opera-
tions one at a time.
At user operation
System