1 - about the module, What this chapter contains, What the module does – Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module User Manual
Page 13: Chapter 1, About the module, What this chapter contains what the module does, Chapter
Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
13
Chapter
1
About the Module
What This Chapter Contains
This chapter describes the 1756-DHRIO and 1756-DHRIOXT modules and
what you must know and do before you begin to use it.
What the Module Does
The Data Highway Plus/RIO module supports the following types
of communication:
•
Data Highway Plus™ (DH+) Messaging
•
Control and Information Protocol (CIP) Messaging
•
Remote I/O
You can send messages between devices on DH+ networks and devices on other
networks such as ControlNet, Ethernet, or other DH+ networks.
A 1756-DHRIO channel functions as a scanner by using remote I/O
functionality. The module transfers discrete and block-transfer data with remote
I/O devices. This module enables connection to multiple remote I/O adapters.
Topic
Page
Prevent Electrostatic Discharge