Omron R88M-1M Series User Manual page 463

5 EtherCAT Communications
The following example shows a case of No. 4. In this example, the communications status changes
from the normal status to the ring disconnection status, and then the power supply to Device Y is turned
OFF, which turns OFF the power supply to Slave C to E and causes a minor fault. Slave A, B, F, and G
continue communications even after the minor fault occurs.
Junction Slave
EtherCAT Master Device X
Slave A Slave B
Device Y (Power OFF) Device Z
Slave C Slave D Slave E Slave F Slave G
Open circuit
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AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User's Manual (I586)