SIMATIC WinCC Open Architecture Forum

Hi,

I have the need to override some functions in standard libraries, namely aes.ctl, ac.ctl and pt.ctl. I usually do this by modifying the libs and copying them to the project directory, but this is not really useful, as I always run into issues when patching or upgrading the project (as the standards libs are updated and the version I am using needs to be manually updated as well).

What is the best practice to modify functions in standard libs?

You could implement your custom functions in a hook file as needed if hooks are available:
https://www.winccoa.com/documentation/W ... ib-12.html

Otherwise you would need to overparameterize the file you want to change.

Br, Herbert