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Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013 63
Chapter 5
Using the I/O
This chapter provides information and examples that explain how to control,
configure, and monitor a PowerFlex 520-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 520-series
drives.
The adapter includes the Logic Command, Logic Status, Reference, Feedback,
and memory allocation for the Generic Ethernet module profile (all as 16-bit
words) in the controllers I/O image. This basic I/O must always be configured in
the Ethernet bridge using RSLogix 5000 or Logix Designer software. Additional
I/O, if needed, can be set using up to four Datalinks to write data and/or up to
four Datalinks to read data. When using any combination of these Datalinks, add
one 16-bit word for each Datalink to the basic I/O Input Size and/or Output
Size.
Configuring the Adapter
on page 25 and Configuring the I/O on page 39 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 drive and controller.
Topic Page
About I/O Messaging
63
Understanding the I/O Image 64
Using Logic Command/Status 65
Using Reference/Feedback 65
Using Datalinks 66
Example Ladder Logic Program Information 67
CompactLogix Example 67
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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