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5 Error Processing, Maintenance and Inspection
5-8
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
5-3 Event Logs
You use the same methods to manage all of the events that occur on the NJ-series Controller. (The
events include errors and information.) You can use the Sysmac Studio or an NS-series PT to confirm
current Controller events and the logs of events that have occurred. These logs are called event logs.
Controller errors that occur for this Unit are also reported as events in the NJ-series CPU Unit.
Refer to the NJ-series CPU Unit Software User’s Manual (Cat. No. W501) for details on the event logs
in an NJ-series CPU Unit. Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for details on
Controller errors, confirmation methods, and corrections.
To use an NS-series PT to check events, connect the PT to the built-in EtherNet/IP port on the CPU
Unit.
5-3-1 Overview of the Event Logs
NJ-series CPU Unit
Event logs
Event source
Sysmac Studio
NS-series PT
CJ-series
Units
Backup battery
Create User-defined
Error instruction:
SetAlarm
Create User-defined
Information
instruction: SetInfo
User program
Or
PLC Function
Module
Motion Control
Function Module
EtherCAT Master
Function Module
EtherNet/IP
Function Module
Errors in
Special Units
EtherCAT
slave
Check current Controller
events and the event log
of past events.
Check current Controller
events and the event log
of past events.