Hi, I think I have the same issue as the owner of this thread. The difference is that I have WP321, specifically option 1. My PLC has firmware V3.0, and the Siwarex library says CPU_V4.

You mentioned that I can use version V3 of the library, but where can I get it?

Best regards.

Siwarexi

Hello msgsadek,

Well, you use in your TIA project:

- a PLC with the firmware V3.0

- the FB231 with the version V4.1

This combination doesn’t work!

You have two possibilities:

1. possibility:

For your older PLC with the firmware V3.0, you use the FB231 with the version V3.0 (= without Siwarex DB)

2. possibility:

You use a PLC with the firmware V4.x.

If so, you can use your FB231 with the version V4.1 (= with Siwarex DB)

Best regards

Siwarexi

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Split from "WP231PR (FB231),The block can only be compiled with a valid password".

Closed cause question posted twice.

The second thread with the subject Want to change the 1200 device for one that have a higher HW version is published within the conference Process Instrumentation / MI Digital Solution / Valve Positioner / Analyzer Systems / Continuous and static Weighing Technology