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9 Troubleshooting and Maintenance
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
9-4 Event Logs
9
9-4-3 Error Descriptions
Event name Master User-set Allocations User Setting Failed Event code 34C00000 hex
Meaning An error occurred in the following operation for user allocation of the master.
• Master User Allocation Setting Switch (device variable *_Sw1MstrAlocCmd)
Source PLC Function Module Source details CJ-series Unit Detection
timing
At user operation
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation Not affected.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The master function is not enabled. Enable the master function. Enable the master function.
There is a mistake in the user alloca-
tions in the master.
Correct the master user allocation
settings.
Correct the master user allocation
settings.
CPU Unit is not in PROGRAM mode. Change the CPU Unit to PROGRAM
mode.
Change the CPU Unit to PROGRAM
mode when setting user allocations in
the master.
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.
Execute the software switch opera-
tions one at a time.
Execute the software switch opera-
tions one at a time.
Attached
information
None
Precautions/
Remarks
None
Event name Communications Cycle Time Setting Failed Event code 34C1 0000 hex
Meaning An error occurred in one of the following operations when setting the communications cycle time.
• Communications Cycle Time Temporary Setting Switch (device variable *_Sw1CycleTmTmpSet)
• Communications Cycle Time Setting Switch (device variable *_Sw1CycleTmSetCmd)
Source PLC Function Module Source details CJ-series Unit Detection
timing
At user operation
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation Not affected.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
There is an error in the set informa-
tion.
Correct the set information. Correct the set information.
CPU Unit is not in PROGRAM mode. Change the CPU Unit to PROGRAM
mode.
Change the CPU Unit to PROGRAM
mode before setting the communica-
tions cycle time.
Attached
information
None
Precautions/
Remarks
None