Rockwell Automation Publication 1756-UM058G-EN-P - November 2012 13
Chapter 1
What Are ControlLogix Digital I/O Modules?
ControlLogix® digital I/O modules are input and output modules that provide
On/Off detection and actuation. By using the producer/consumer network
model, digital I/O modules can produce information when needed while
providing additional system functions.
Available Features
The table lists several features available on ControlLogix digital I/O modules.
Topic Page
Available Features 13
I/O Modules in the ControlLogix System 14
Module Identification and Status Information 17
Feature Description
Removal and Insertion Under Power (RIUP) You can remove and insert modules and removable terminal blocks
(RTB) while power is applied.
Producer/consumer communication This communication method is an intelligent data exchange between
modules and other system devices in which each module produces
data without first being polled.
System time stamp of data A 64-bit system clock places a time stamp on the transfer of data
between the module and its owner-controller.
Module-level fault reporting and field-side
diagnostic detection
Fault and diagnostic detection capabilities to help you effectively and
efficiently use your module and troubleshoot your application.
Agency Certification Class 1, Division 2 agency certification for any application that
requires approval.
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