Rockwell Automation 22-COMM-P PowerFlex Profibus Adapter - Manual (Page 55)

Chapter
6
Using the Parameter Messaging
This chapter provides information that explains how to use Parameter
Messaging to monitor and configure the adapter and connected
PowerFlex 4-Class drive, as well as other peripherals.
The Parameter Messaging is used to transfer data that does not require
continuous updates. With the Parameter Messaging, you can configure
and monitor a slave device’s parameters on the Profibus network.
To be able to use the parameter protocols in the 22-COMM-P, the
Parameter Access module must be added to the master configuration
when configuring the network. Refer to step 13,
page 4-9 to view the
procedure for adding the “Parameter Access” module to a configuration.
This maps 4 words input and output to the end of the I/O configuration,
which is used as the request/response in the parameter message format
(
Figure 6.2 ).
Topic Page
About the Parameter Messaging 6-1
Running the Parameter Messaging 6-2
Parameter Protocol 6-3
!
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.
!
ATTENTION: Risk of equipment damage exists. If Parameter
Messaging is programmed to write parameter data to Non-Volatile
Storage (NVS) frequently, the NVS will quickly exceed its life cycle
and cause the drive to malfunction. Do not create a program that
frequently uses Parameter Messaging to write parameter data to NVS.
About the Parameter Messaging