Rockwell Automation 1203-EN1 EtherNet/IP-to-SCANport Module - Manual (Page 53)

Chapter
5
Using I/O Messaging
Chapter 5 provides information and examples that explain how to use a
ControlLogix controller to send I/O Messaging to control, configure, and
monitor a SCANport-based drive. A 1305 drive is used for the examples
in this chapter.
Important: At the time of publication, only ControlLogix controllers can
make an EtherNet/IP network I/O connection as described in
this chapter; PLC-5’s and SLC’s cannot. However, these
controllers can perform control using explicit messaging to the
CIP Register object and PCCC N41: and N42: files.
On EtherNet/IP, I/O messaging is used to transfer the data that controls
the 1305 drive and sets its Reference. I/O can also be used to transfer
data to and from Datalinks in 1305 drives.
The module provides many options for configuring and using I/O, including:
• The size of I/O can be configured by enabling or disabling the Logic
Command/Reference and Datalinks.
• A Master-Slave hierarchy or a Peer-to-Peer hierarchy can be set up.
Chapter 3 , Configuring the Module , and Chapter 4 , Configuring the
Scanner or Bridge , discuss how to configure the module and scanner or
bridge on the network for these options. The Glossary defines the
different options. This chapter discusses how to use I/O after you have
configured the module and scanner or bridge.
Topic Page Topic Page
About I/O Messaging 5-1 Using Reference/Feedback 5-4
Understanding the I/O Image 5-2 Using Datalinks 5-5
Using Logic Command/Status 5-3 Example Ladder Logic Program 5-5
!
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.
About I/O Messaging