Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 173)

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 173
Configure the Redundant I/O System Chapter 5
Step 1: Add a 1715-IB16D Digital Input Module in Duplex Mode
1. To add a new 1715-IB16D Digital Input module in Duplex mode to the
project, right-click the 1715-AENTR adapter module and choose New
Module.
The Select Module dialog box appears.