Appendix Troubleshooting; Factors Causing Ethercat Communications To Be Unavailable, And Corrective Actions - Omron 1S Series Startup Manual

9. Appendix
9.1. Factors Causing EtherCAT Communications To Be Unavailable, and
Corrective Actions
Description
The link is not established.
EtherCAT communications do
not start.
A synchronization error occurs
at a slave.
68
Troubleshooting
Factor
The Ethernet cable is broken or
the specified cable is not being
used.
A connector on the Ethernet
cable used for EtherCAT
communications is
disconnected, the contact is
faulty, or parts are faulty.
A slave within the EtherCAT
network configuration failed.
ECAT[0].Enable is set to 0.
The EtherCAT network
configuration in the Controller
does not agree with the
physical network configuration.
The Ethernet cable is broken at
a slave in the network, or a
connector is disconnected.
Some errors have occurred,
and the ECAT[0].error is set to a
value other than 0.
The distribution clock is not set
correctly.
A slave in Free-Run Mode is set
to the reference clock.
The servo task processing time
exceeds the set period.
Corrective Action
If the Ethernet cable is broken
or if the specified cable was not
used, replace the cable.
Reconnect the connector and
make sure it is mated correctly.
Replace the slave.
From the Terminal tab page, run
the ECAT[0].Enable=1
command to start EtherCAT
communications.
Review the settings according
to the procedures provided in
1.1 EtherCAT Communications
Setup.
Connect the Ethernet cable
correctly.
Check the ECAT[0].error value.
Review the settings according
to the procedures provided in
6.4.2 Distributed Clock Setup.
Review the program or servo
frequency to adjust it, so that
the servo task processing time
does not exceed the period.