5-67
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 1.05 or later of the CPU Unit.
*2 For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
* Operation is the same as for a major fault level error. For details, refer to I/O Operation for Major Fault Level Controller
Errors on page 5-6.
Event name PLC Function Processing Error Event code
44420000 hex
*1
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 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
An error occurred in the software. Contact your OMRON representative. None
Attached
information
Attached information 1: System information
Attached Information 2: System information
Attached information 3: System information
Attached information 4: System information
Precautions/
Remarks
None
Event name PLC Function Processing Error Event code 40120000 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 Partial fault Recovery Cycle the power
supply.
Log category System
Effects User program Stops. Operation Stops.*
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
Attached information 1: System information
Attached Information 2: System information
Attached information 3: System information
Attached information 4: System information
Precautions/
Remarks
None
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