Omron NX-ECC201 User Manual page 217

I/O refreshing is performed between the EtherCAT master and EtherCAT slaves and between the
EtherCAT Coupler Unit and the NX Units. The ranges of refreshing are given in the following table.
Range
Refreshing between the EtherCAT
master and EtherCAT slaves
Refreshing between EtherCAT Cou-
pler Unit and NX Units
*1. In this context, the EtherCAT Coupler Unit is an EtherCAT slave.
The operation of refreshing between the built-in EtherCAT port on the NJ-series CPU Unit and the NX
Units on the EtherCAT Slave Terminal is determined by the combination of the I/O refresh types for the
above ranges.
The rest of this section gives a general description of I/O refreshing between the built-in EtherCAT port
on the NJ-series CPU Unit and EtherCAT slaves. This is followed by a description of I/O refreshing with
the NX Units on EtherCAT Slave Terminals.
NX-series EtherCAT Coupler Unit User's Manual (W519)
Synchronized
DC Mode
*1
Synchronous I/O refreshing
10 I/O Refreshing
I/O refreshing type
Not synchronized
Free-Run Mode
Free-Run refreshing
10
10 - 3