12 - 1
12
NX-series EtherCAT Coupler Unit User’s Manual (W519)
This section describes the I/O response performance of process data communications
and the response performance of message communications for EtherCAT Slave Termi-
nals.
12-1 Performance of Process Data Communications . . . . . . . . . . . . . . . . . . . . 12-2
12-1-1 I/O Response Times for Synchronous I/O Refreshing . . . . . . . . . . . . . . . . . . 12-2
12-1-2 I/O Response Times for Free-Run Refreshing . . . . . . . . . . . . . . . . . . . . . . . 12-14
12-2 Message Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-22
12-2-1 Special Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-22
12-2-2 Message Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-22
Communications Performance