If you have experience with programming in CodeSys3 you can skip this part. Otherwise, it's advised to gain some experience by checking the sources below:
- Setup environment and creation first project: YouTube video
- CoDeSys start guide (uses CoDeSys 2.3 but principles still applicable): YouTube playlist
- CoDeSys Sequential Function Charts Explained: YouTube video
- Getting to know the IEC 61131-3 standard: iec 61131-3 reference
- Download é!COCKPIT from the WAGO website.
- open the file with .ecp extension in é!COCKPIT.
- Go to the Library Manager → Libary repository menu:
- install all libraries from the src/Libraries folder.
- Build the project
This video provides all instructions.