Hi dears

I use pcs7 version 9.1 sp2 for migrating project from pcs7 version 7.0 ,ofcourse step by step according to siemense document.however in previous version we have a trend function control classic to draw three curve to show conditions of specefic machine.the designer used VBS script to write related calculations and assign to 9 trend through index and also show live point that including two perpendicular trend .this trend in version 8 and 9.0 work without problem but it doesnt work in pcsversion 9.1 SP2.in addition i installed pcs7 engineering according to instructions and use official license.i think this version has a problem with complex vbs in a way that performs several tasks in same time.

Thanks for your attention

Unlukily ,i couldnt find a solution for that so i temporarily downgrade project to PCS7 version 9.0 sp3.

Best regard

A couple of months back, I had encountered the same problem while commissioning a project based around DCS upgradation.

The graphs were not functioning properly as you highlighted but in my case, it was in WinCC Runtime.

However, the problem was later resolved by installing the latest software update of WinCC for PCS 7 V9.1 SP2 which is SIMATIC WinCC V7.5 SP2 Upd18.

I hope it helps, let me know.