Access: Access event log
*4. This status is for the execution of the user program in the NJ-series CPU Unit, and not for the execution of the safety
program in the Safety CPU Unit. One of the following:
Continues: Execution of the user program in the NJ/NX-series CPU Unit will continue.
Stops: Execution of the user program in the NJ/NX-series CPU Unit stops.
Starts: Execution of the user program in the NJ/NX-series CPU Unit starts.
Safety CPU Unit
Details on the errors (events) that can occur in the Safety CPU Unit are given in the following tables.
l
System Error
Event name System Error Event code 05200000 hex
Meaning A hardware error was detected during self-diagnosis of the hardware.
Source Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details NX Unit Detection tim-
ing
Continuously
Error attrib-
utes
Level Minor fault Recovery Cycle the pow-
er supply to the
Unit.
Log category System
Effects User program Continues. Operation The Unit stops operating and the I/O data changes
to the safe states.
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
Hardware has failed. Cycle the power supply. If the er-
ror occurs again, replace the
Unit.
If cycling the power supply re-
stores normal operation, there
may be excessive noise near the
Unit. Implement noise counter-
measures.
A memory error occurred due to
a transient cause, such as a soft-
ware error or excessive noise.
Attached in-
formation
Attached information 1: System information, status code
Attached information 2: System information, status code
Attached information 3: System information, status code
Attached information 4: System information, status code
Precautions/
Remarks
None
l
Communications Errors
12 Troubleshooting
12 - 32
NX-series Safety Control Unit User's Manual (Z930)
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