Omron NX-SID800 User Manual

1 Overview
1 - 14
NX-series Safety Control Unit User’s Manual (Z930)
 Relationship between Master and Slaves during Standard Process Data Com-
munications
The following figure shows the EtherCAT master/slave relationship during standard process data
communications.
The NJ/NX-series CPU Unit performs standard process data communications with the Safety CPU Unit
and the Safety I/O Units on the EtherCAT network.
In this relationship, the NJ/NX-series CPU Unit operates as the master in the standard process data
communications. Meanwhile, the Safety CPU Unit and Safety I/O Units operate as slaves in the stan-
dard process data communications. The NJ/NX-series CPU Unit cannot output signals to Safety I/O
Units.
 Relationships for Safety Process Data Communications
The relationships for safety process data communications are shown in the following figure.
The Safety CPU Unit performs safety process data communications with the Safety I/O Units on the
same Slave Terminal.
Safety process data communications are not performed with Safety I/O Units on other Slave Termi-
nals on the EtherNet/IP network. Here, the Safety CPU Unit operates as the master in the safety
process data communications. Meanwhile, the Safety I/O Units operate as slaves in the safety pro-
cess data communications.
Relationships for EtherNet/IP Network Communications
Standard master
Standard slave
Standard process data communications
S
S
S S
SS
M
M
Safety
CPU
Unit
NJ/NX-series
CPU Unit
Coupler
Unit
Safety Output
Safety Input
Coupler
Unit
Safety Output
Safety Input
EtherCAT
Safety Control System
Standard
CPU Unit
Safety process data communications
Safety master
Safety slave
EtherNet/IP
S
S
S
M
M
S S
M
Safety
CPU
Unit
Coupler
Unit
Safety Output
Safety Input
Safety
CPU
Unit
Coupler
Unit
Safety Output
Safety Input

Omron NX-SID800 Specifications

General

Brand	Omron
Model	NX-SID800
Category	Controller
Language	English