Allen-Bradley PowerFlex 20-COMM-D, User Manual

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Chapter
6
Using Explicit Messaging
Chapter 6 provides information and examples that explain how to use
Explicit Messaging to monitor and configure the adapter and connected
PowerFlex drive.
Explicit Messaging is used to transfer data that does not require
continuous updates. With Explicit Messaging, you can configure and
monitor a slave device’s parameters on the DeviceNet network.
Topic Page Topic Page
About Explicit Messaging 6-1 ControlLogix Example 6-8
Formatting Explicit Messages 6-2 PLC-5 Example 6-10
Running Explicit Messages 6-7 SLC Example 6-12
!
ATTENTION: Hazard 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: Hazard of equipment damage exists. If Explicit
Messages are 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 Explicit Messages to write parameter data to NVS.
Datalinks do not write to NVS and should be used for frequently
changed parameters.
About Explicit Messaging