Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module - Manual (Page 65)

Publication 1757-UM007D-EN-P - December 2008 63
Configuring RSLogix 5000 Software to Access Data on the 1757-ABRIO Module Chapter 5
Output Priority
If a digital rack is mapped to a flag write tag in the AbRioCfg software,
the flag data takes precedence over the digital outputs in the
scheduled connection, even if nothing is writing to the flag write tag.
To control outputs on a chassis using a scheduled connection, make
sure the chassis is not mapped to a flag write tag.
Setup Input-only Connections
The 1757-ABRIO module also supports input-only connections. In a
ControlLogix system, multiple controllers can receive inputs from a
module, but only one controller can control the outputs. An
input-only connection does not require the presence of an exclusive
owner connection. More than one ControlLogix controller can open
an input-only connection to the 1757-ABRIO module and receive its
inputs.
Add a Module as an Input-only Connection
To configure an input-only connection to the 1757-ABRIO module in
RSLogix 5000 software, you must be offline.
1. Create a new project for your type of controller.
2. Type a name for the controller, and select the slot it occupies in
the ControlLogix chassis.
3. Click OK.
4. Right-click on I/O configuration and select New Module.
5. Under Other, select the 1756-MODULE Generic 1756 Module
and click OK.