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5 Troubleshooting
NJ-series CPU Unit Hardware User’s Manual (W500)
5-2 Troubleshooting
5
5-2-4 Error Descriptions
*1 This event code occurs for unit version 1.03 or later of the CPU Unit.
*2 For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
* For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
Event name Event Level Setting Error Event code
100C0000 hex
*1
Meaning The settings in the event level setting file are not correct.
Source PLC Function Module Source details None Detection
timing
At power ON or
Controller reset
Error attributes Level Major fault Recovery Cycle the power
supply or reset
the Controller.
Log category System
Effects User program Stops. Operation
Stops.
*2
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The event level settings are not cor-
rect because the power supply to the
Controller was interrupted or commu-
nications with the Sysmac Studio
were disconnected during a download
of the event level settings.
Perform a Memory All Clear operation
and then transfer the event level set-
ting file again.
Do not interrupt the power supply to
the Controller or disconnect commu-
nications with the Sysmac Studio
during a download of the event level
settings.
The event level settings are not cor-
rect because the power supply to the
Controller was interrupted during a
Clear All Memory operation.
Do not interrupt the power supply to
the Controller during a Clear All Mem-
ory operation.
Non-volatile memory failed. If the error persists even after you
make the above correction, replace
the CPU Unit.
None
Attached
information
None
Precautions/
Remarks
None
Event name PLC System Processing Error Event code 40010000 hex
Meaning A fatal error was detected in the PLC Function Module.
Source PLC Function Module Source details None Detection
timing
Continuously
Error attributes Level Major fault Recovery Cycle the power
supply.
Log category System
Effects User program Stops. Operation
Stops.
*
A connection to the Sysmac Studio is not possible.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
An error occurred in the software. Contact your OMRON representative. None
Attached
information
None
Precautions/
Remarks
None
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