System performance, Connections – Rockwell Automation 1715-OF8I Redundant I/O System User Manual User Manual
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Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
31
Redundancy System Overview
Chapter 1
System Performance
This section discusses connections and RPI settings for the 1715 Redundant I/O
System.
Connections
The adapter module has one required connection and does not support a rack
connection.
Each I/O module has one required connection (simplex or duplex).
For example, the system in
has five I/O modules. Four are duplex and
one is simplex. They are all configured for data connection.
Figure 11 - Duplex and Simplex Connections
shows six connections; one for each entry in the
configuration.
Table 4 - RSLogix 5000 or Logix Designer Configuration
The digital module connections use change-of state-triggers, and the adapter and
analog module connections use cyclic triggers.
Connection
Module
Duplex/Simplex
Module Description
1
1715-AENTR
Duplex
Ethernet Adapter
1
1715-IB16D
Duplex
16-point Digital Input
1
1715-OB8DE
Duplex
8-point Diagnostic Digital Output
1
1715-IF16
Duplex
16-point Analog Input
1
1715-OF8I
Duplex
8-point Analog Digital Input
1
1715-IF16
Simplex
16-point Analog Input