Synchronization With Distributed Clocks; Communications Cycle (Dc Cycle) - Omron R88M-K User Manual

5-6 Synchronization with Distributed
Clocks
A mechanism called a distributed clock (DC) is used to synchronize EtherCAT communications.
The DC mode is used for G5-series Servo Drives to perform highly accurate control in a
multi-axis system.
In DC mode, the master and slaves are synchronized by sharing the same clock.
Interruptions (Sync0) are generated in the slaves at precise intervals based on this clock.
Servo Drive control is carried out at this precise timing.
5-6-1

Communications Cycle (DC Cycle)

The communications cycle is determined by setting the Sync0 signal output cycle.
Setting range: 250 µs/500 µs/1 ms/2 ms/4 ms
Precautions for Correct Use Precautions for Correct Use
The communications cycle you can set varies depending on conditions such as the Servo Drive
unit version or the modes of operation in use. For details on the communications cycle you can
set, refer to A-1-3 Communications Cycles and Corresponding Modes of Operation on page A-5
G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
5 EtherCAT Communications
5
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