Manual

75Publication 1757-UM007D-EN-P - December 2008 75
Chapter 6
Accessing Data through a DDE or OPC Server
Introduction
This chapter describes how to access data on the module using a DDE
or OPC Server.
Accessing Data from a DDE
or OPC Server
You can access data on the 1757-ABRIO module directly using a DDE
or OPC server such as RSLinx software, without the intervention of a
host controller.
Configuring a Topic in RSLinx Software
Use the following procedure to use RSLinx software as a DDE or OPC
server to access data on the 1757-ABRIO module.
1. Start RSLinx software
2. Select DDE/OPC Topic Configuration from the main menu.
3. Click New to create a new DDE or OPC topic, and give the topic
a name.
4. Select the Data Source tab and browse to the 1757-ABRIO
module.
5. Select the Data Collection tab.
6. Set the Processor Type to Logix5000.
7. Check Polled Messages and set the poll period to an appropriate
value.
8. Un-check Unsolicited Messages.
9. Leave the remaining values at their default values and click
Apply.
10. Select the Advanced Communication tab.
11. Select the Communications Driver you are using.