Rockwell Automation Publication 1756-UM058G-EN-P - November 2012 19
Chapter 2
Digital I/O Operation in the ControlLogix System
I/O modules are the interface between controllers and field devices in a
ControlLogix system. Digital I/O modules transfer data to devices that require
just one bit to be represented (0 or 1). For example, a switch is open or closed, or
a light is on or off.
Topic Page
Ownership 20
Use RSNetWorx and RSLogix 5000 Software 20
Internal Module Operation 21
Connections 23
Input Module Operation 26
Input Modules in a Local Chassis 27
Input Modules in a Remote Chassis 28
Output Module Operation 31
Output Modules in a Local Chassis 31
Output Modules in a Remote Chassis 32
Listen-only Mode 34
Multiple Owner-Controllers of Input Modules 34
Configuration Changes in an Input Module with Multiple Owners 35
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