Alex Pel,
I think you are almost ready for the next step, which is to get your hands on a PLC Programming software package. The best is to have a PLC sitting next to your computer, so that you can write a program, download it, and then run it on the PLC. However, if you don't have a PLC available, I recommend that you consider a programming package with an "Emulate" mode. This is a program which allows your computer to simulate a PLC. In this way, you can not only write PLC programs, but you can run them and see if your code works as expected. Many brands now have Emulators. ProLogix is a good one for the Allen-Bradly RSLogix500 programming software. There is als0 RSEmulate available directly from Rockwell Software. Omron has some PLC/Emulator 30-day free trial software also.
I think you are almost ready for the next step, which is to get your hands on a PLC Programming software package. The best is to have a PLC sitting next to your computer, so that you can write a program, download it, and then run it on the PLC. However, if you don't have a PLC available, I recommend that you consider a programming package with an "Emulate" mode. This is a program which allows your computer to simulate a PLC. In this way, you can not only write PLC programs, but you can run them and see if your code works as expected. Many brands now have Emulators. ProLogix is a good one for the Allen-Bradly RSLogix500 programming software. There is als0 RSEmulate available directly from Rockwell Software. Omron has some PLC/Emulator 30-day free trial software also.