Rockwell Automation RECOMM-PBUS PROFIBUS Communications Module - Manual (Page 53)

Using I/O Messaging 6-1
C
HAPTER
6
Using I/O Messaging
Chapter 6 provides information and examples that explain how to
use I/O Messaging to control an SP600 drive.
6.1 About I/O Messaging
I/O messaging is used to transfer the data which controls the SP600
drive and sets its Reference. I/O can also be used to transfer data
to and from Datalinks in SP600 drives.
The PROFIBUS module provides options for configuring and using
I/O, including the size of the I/O, which can be configured by
enabling or disabling the Logic Command/Reference and Datalinks.
Chapter 4, Configuring the PROFIBUS Module, and chapter 5,
Configuring the PROFIBUS Scanner, discuss how to configure the
module and scanner 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.
6.2 Understanding the I/O Image
The terms input and output are defined from scanner’s point of
view. Therefore, Output I/O is data that is output from the scanner
and consumed by the PROFIBUS module. Input data is status data
that is produced by the module and consumed as input by the
scanner.
!
ATTENTION: 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. Failure to observe this
precaution could result in bodily injury or damage to
equipment.