5 Troubleshooting
5 - 4
CJ-series EtherCAT Slave Units Operation Manual (W541)
The basic procedures to check errors are described below.
1 Check whether an error exists on the EtherCAT Slave Unit with the Configuration Software that
is connected to the EtherCAT master.
2 If an error occurs in the EtherCAT Slave Unit, check the following items to determine the cause
of an error.
• Check indicators
• Check the error log and the status with the CX-Programmer that is connected to the PLC
Displaying error log for CPU Bus Units
or Special I/O Units in the I/O table
with CX-Programmer
The error log is recorded by the error log function of the EtherCAT
Slave Unit.
The error log can be read with FINS commands to the Unit.
Checking the Unit status and slave
status areas
These areas indicate the status of the EtherCAT Slave Unit and the
level of the error.
Checking with Configuration Software The Configuration Software provides the emergency message code
and AL status code
*1
.
*1. Available information is specific to the EtherCAT master used and the functions of its Configuration Software.
5-1-3 Procedures to Check Errors
Checking method Information provided
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