Omron NX-SL5500

1-2
System Configuration and Configura-
tion Devices
1-2-1
Safety Control System Configuration on NX bus of CPU Unit or
EtherCAT Network
In this configuration, the safety control system operates on the NX bus of the NX-series
CPU Unit and
on the EtherCAT network.
The safety control system consists of the NX-series CPU Unit with the NX bus master function, CPU
Unit with the EtherCA
T master function, and the NX-series EtherCAT Coupler Unit with the EtherCAT
slave function.
Safety CPU Unit
NX-series
CPU Unit
Coupler
Unit
Coupler
Unit
Safety control system
NX-series NX Bus/EtherCAT Integrated System
The Safety CPU Unit performs safety
process data communications with the
Safety I/O Units.
EtherCAT master
/NX bus master
Slave Terminal Slave Terminal
 Coupler Unit: EtherCAT Coupler Unit
 Safety Input: Safety Input Unit
 Safety Output: Safety Output Unit
(These abbreviations apply to all subsequent
figures in this manual.)
Safety Input
Safety Input
Safety Output
Safety Output
EtherCAT
1 Overview
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NX-series Safety Control Unit User's Manual (Z930)