1 - what are controllogix digital i/o modules, Available features, Chapter 1 – Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules User Manual
Page 13: What are controllogix digital i/o modules, Chapter

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
I/O Modules in the ControlLogix System
Module Identification and Status Information
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.