9 Troubleshooting
9-4
NJ/NX-series CPU Unit Built-in EtherCAT Port User’s Manual (W505)
9-2 Troubleshooting
This section describes errors (events) that can occur and the corrections for them, network diagnosis
procedure using diagnostic and statistical information, functions of the Sysmac Studio and the CPU
Unit for acquiring diagnostic and statistical information, and functions of the Sysmac Studio for identify-
ing error slaves and error causes.
Refer to Error Tables in Errors in the EtherCAT Master Function Module in the NJ/NX-series Trouble-
shooting Manual (Cat. No. W503-E1-19 or later) for tables of errors (events) that occur in the EtherCAT
Master Function Module.
Refer to Error Descriptions in Errors in the EtherCAT Master Function Module in the NJ/NX-series Trou-
bleshooting Manual (Cat. No. W503-E1-19 or later) for description of errors (events) that occur in the
EtherCAT Master Function Module.
Refer to Resetting Errors in the EtherCAT Master Function Module in Errors Related to the EtherCAT
Master Function Module in the NJ/NX-series Troubleshooting Manual (Cat. No. W503-E1-19 or later)
for how to reset errors.
The diagnostic and statistical information provides statistics on the number of communications frames
sent and received by the EtherCAT master and EtherCAT slaves as well as the number of frames for
which errors were detected.
You can use it to diagnosis the EtherCAT network line qualify for the following:
• Confirming that the EtherCAT network was correctly installed during a test run
• Finding the causes of communications errors that occur during normal operation
• Checking the EtherCAT network line quality during normal operation
You can diagnose the EtherCAT network with the diagnostic and statistical information for the master
and slaves. The procedure to diagnose the EtherCAT network is given below.
If the diagnostic results show that the EtherCAT network is not operating normally, you can find the
location of the error.
An outline procedure from EtherCAT network diagnosis through correction is given below.
1
Acquire the diagnostic and statistical information for the master and slaves.
2
Check for errors in the trends shown in the master diagnostic and statistical information.
3
Find the locations of the errors with trends in the slave diagnostic and statistical information.
9-2-1 Error Table
9-2-2 Error Descriptions
9-2-3 Resetting Errors
9-2-4 Diagnostic and Statistical Information
EtherCAT Network Diagnostic Procedure
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