Rockwell Automation 20G PowerFlex 755 Drive Embedded EtherNet/IP Adapter - Manual (Page 79)

Rockwell Automation Publication 750COM-UM001E-EN-P - October 2013 79
Chapter
5
Using the I/O
This chapter provides information and examples that explain how to control,
configure, and monitor a PowerFlex 755 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 adapter 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 Adapter, and Chapter 4 , Configuring the I/O,
discuss how to configure the adapter 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 adapter and controller.
Topic Page
About I/O Messaging 79
Understanding the ControlLogix Controller I/O Image 80
Using Logic Command/Status 81
Using Reference/Feedback 81
Using Datalinks 82
Example Ladder Logic Program Information 83
ControlLogix Controller Example 84
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 does not
assume responsibility or liability (to include intellectual property liability) for
actual use of the examples shown in this publication.