Omron NX701-17 Series Troubleshooting Manual page 38

1 Overview of Errors
The event management for NJ-series Units is shown below.
Check current Controller
events and the event log
of past events.
Sysmac Studio
Or
HMI
Check current Controller
events and the event log
of past events.
Precautions for Correct Use Precautions for Correct Use
For an NX-series or NJ-series CPU Unit, use the following information to handle errors that
occurred in an EtherCAT Slave Terminal or EtherCAT slave.
• Refer to the manual for the Communications Coupler Unit for details on the event log in a
Slave Terminal.
• When there is an emergency message that notifies an error from an EtherCAT slave to the
CPU Unit, it is recorded in the event log of the EtherCAT Master Function Module as the
Emergency Message Detected (64200000 hex) event.
• You cannot confirm the event log for an EtherCAT slave that has no event log. To record an
error history as an event, you have to change the setting of the EtherCAT slave to notify emer-
gency messages, then the Emergency Message Detected (64200000 hex) event is recorded.
However, errors which cannot be notified by emergency messages from EtherCAT slaves are
not recorded in the event log.
Meanwhile, there is a way to display error history of some EtherCAT slaves that do not have
the event log, on the Sysmac Studio version 1.15 or higher as the event log. Refer to relevant
manuals for EtherCAT slaves for the possibility to display error history as the event log.
• Refer to relevant manuals for the slaves for the procedures to read error history of EtherCAT
slaves.
The following events can occur.
 Controller Events
The Controller automatically detects these events. Controller events include events for the function
modules in the CPU Unit, NX Units, NX-series Slave Terminal, EtherCAT slaves, and CJ-series
Units.
1-10
NJ-series CPU Unit
Motion Control
EtherCAT Master
PLC Function
Event source
Function Module
Function Module
Module
Event logs
Backup battery
CJ-series
Units
EtherNet/IP
Errors in
Function Module
Special Units
User program
Create User-defined
Error instruction:
SetAlarm
Create User-defined
Information
instruction: SetInfo
EtherCAT
EtherCAT
Slave
slave
Terminal
Event logs
NJ/NX-series Troubleshooting Manual (W503)