Learn how to configure your eWON and your PLC in order to be able to poll data from a Schneider %340 PLC.
The eWON RS485 link can be configured as a UNITELWAY SLAVE INTERFACE.
This Unitelway slave provides 2 features:
- Poll items in a Unitelway capable device. The device can be the Unitelway master itself or a device reachable through the Unitelway master on the XWay network.
- Forward XIP requests from TCP/IP XIP to Unitelway bus and thus, act as a gateway between XIP and Unitelway. When using this feature, it is possible for example to access a PLC connected to the eWON’s Unitelway link by connecting PL7PRO using the XIP driver started with the eWON IP address as destination.
Remote maintenance available.
|Remote Access for Schneider M258 PLCs||AUG-054.pdf|
|Remote Access for Schneider Modicon Micro & Premium PLCs||AUG-038.pdf|
|Access Schneider Modicon Micro & Premium PLCs through an existing Talk2M connection||AUG-042.pdf|
|Unitelway IO Server (extract from RG-001)||Unitelway.pdf|
|Gateway XIP - Unitelway for Schneider PLC||TN15.pdf|
|eWON Unitelway topology||TN14.pdf|
KB-0253: Polling Schneider M340
KB-0021 Use of Topics for Tag Polling
For each I/O Server, there are 3 topics (A, B, C) that you can define. In those topics you can choose the frequency of polling. You can also specify on which PLC you would like to read the linked Tags.
If you want to poll on more then 3 PLC then do not specify the destination equipment inside the Topic, but specify it in the Tag configuration.