Preface, Purpose of this manual, Preface purpose of this manual – Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module User Manual
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Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
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Preface
Purpose of This Manual
This manual describes how to understand, configure, and troubleshoot your
ControlLogix® Data Highway Plus™ Remote I/O (1756-DHRIO)
communication interface module and ControlLogix Data Highway Plus Remote
I/O extreme temperature communication interface module.
This manual also provides step-by-step procedures on how to:
•
use the 1756-DHRIO and 1756-DHRIOXT modules to send DH+™
messages between ControlLogix controllers, PLC and SLC controllers in
DH+ applications.
•
connect ControlLogix controllers to remote I/O and send block transfers
via the 1756-DHRIO and 1756-DHRIOXT module.
Throughout this manual, we describe ControlLogix systems that use the
1756-DHRIO and 1756-DHRIOXT modules and ControlLogix controllers.
Multiple ControlLogix controllers are available. The examples contained in this
manual do not call out catalog numbers for ControlLogix controllers. Whenever
a controller is shown, any of the controllers apply.