Rockwell Automation 20-750-CNETC PowerFlex Coaxial ControlNet Option Module - Manual (Page 61)

Rockwell Automation Publication 750COM-UM003B-EN-P - November 2012 61
Chapter
5
Using the I/O
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 ControlNet, 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, and
Feedback (all as 32-bit words) in the controller’s I/O image. This basic I/O must
always be configured in the ControlNet 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 61
Understanding the ControlLogix Controller I/O Image 62
Using Logic Command/Status 63
Using Reference/Feedback 63
Using Datalinks 64
Example Ladder Logic Program Information 65
ControlLogix Controller Example 66
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.