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6 Troubleshooting
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
6-2 Troubleshooting
6
6-2-4 Error Descriptions
Errors Related to the NX Bus
Event name NX Bus Controller Error Event code 04100000 hex
Meaning An error occurred in the NX bus.
Source NX Bus Function Module Source details Master Detection
timing
At CPU Unit
power ON, at
Controller reset,
or during NX bus
communications
Error attributes Level Partial fault Recovery Cycle the power
supply to the
CPU Unit or reset
the Controller.
Log category System
Effects User program Continues. Operation I/O communications will not operate and message com-
munications cannot be performed.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
An I/O communications error
occurred between the CPU Unit and
the NX Unit.
Cycle the power supply to the CPU
Unit. If this error persists, replace the
CPU Unit.
None
Attached
information
Attached information 1: System information
Precautions/
Remarks
None
Event name NX Bus Hardware Error Event code 04110000 hex
Meaning A hardware error was detected in the NX Bus Function Module.
Source NX Bus Function Module Source details Master Detection
timing
Continuously
Error attributes Level Partial fault Recovery Cycle the power
supply to the
CPU Unit or reset
the Controller.
Log category System
Effects User program Continues. Operation I/O communications will not operate and message com-
munications cannot be performed.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
A hardware error related to the NX
bus was detected.
Cycle the power supply to the CPU
Unit. If this error persists, replace the
CPU Unit.
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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