These design-patterns come from various sources all around the internet.
I decided to study and rework / translate them into Codesys V3.
The patterns are ideally suited for selfstudy purpose.
Kudo's go out to the original posters.
**Allthough design patterns can ease your life significantly, the best solution is always the simplest solution (and/ or procedural), no matter what fancy pattern you throw at it!