Chapter 5, Using the i/o (adapter mode only), About i/o messaging – Rockwell Automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Module User Manual

Page 87

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Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012

87

Chapter

5

Using the I/O (Adapter mode only)

This chapter provides information and examples that explain how to control,
configure, and monitor a PowerFlex 750-Series drive using the configured I/O.

About I/O Messaging

On CIP-based networks, including EtherNet/IP, I/O connections are used to
transfer the data which controls the PowerFlex drive and sets its Reference. I/O
can also be used to transfer data to and from Datalinks in PowerFlex 750-Series
drives.

The option module includes the Logic Command, Logic Status, Reference,
Feedback, and memory allocation for the Generic Ethernet module profile (all as
32-bit words) in the controller’s I/O image. This basic I/O must always be
configured in the EtherNet bridge using RSLogix 5000 software. Additional I/O,
if needed, can be set using up to 16 Datalinks to write data and/or up to 16
Datalinks to read data. When using any combination of these Datalinks, add one
32-bit word for each Datalink to the basic I/O Input Size and/or Output Size.

Chapter 3

, Configuring the Option Module, and

Chapter 4

,

Configuring the I/O, discuss how to configure the option module and controller
on the network for the required I/O. The Glossary defines the different options.
This chapter discusses how to use I/O after you have configured the option
module and controller.

Topic

Page

About I/O Messaging

87

Understanding the I/O Image

88

Using Logic Command/Status

89

Using Reference/Feedback

89

Using Datalinks

90

Example Ladder Logic Program Information

91

ControlLogix Controller Example

92

ATTENTION: Risk of injury or equipment damage exists. The examples in this
publication are intended solely for purposes of example. There are many
variables and requirements with any application. Rockwell Automation, Inc.
does not assume responsibility or liability (to include intellectual property
liability) for actual use of the examples shown in this publication.

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