Rockwell Automation 20-750-PNET Profinet Single Port Option Module - Manual (Page 50)

50 Rockwell Automation Publication 750COM-UM006A-EN-P - January 2013
Chapter 6 Acyclic Messaging
Profinet Acyclic Messaging The option module provides the following Profinet Acyclic Services:
• READ: This service is used to read a PowerFlex 750-Series drive
parameter or option module parameter.
• WRITE: This service is used to modify a PowerFlex 750-Series drive
parameter or option module parameter.
Example Messaging Examples of using Profinet acyclic messaging to read and write to a drive
parameter is described in this section.
Read Example for Drive Parameter 31 - [Motor Poles]
To read PowerFlex 750-Series drive Parameter 31 - [Motor Poles] using a Profinet
IO Acyclic Read Record Service, set up a Profinet IO Controller. In this example,
ProfinetCommander, a Profinet IO emulation tool is used. Make sure the
ProfinetCommander is configured to communicate with the option module.
1. To start acyclic communication, click Operate for the Select Run mode.
2. Click Read/Write Record.
The Read/Write Record window appears.