My thesis theme is an education system, which name is Turnover station. This device is built with industrial parts. My task was to automate this system with a FESTO PLC, and prepare it for educational use. I had to become acquainted with the station, and introduce it. I had to choose the PLC and its modules. I have developed a demo application, and worksheets for courses. My PLC program was developed in CoDeSys, so I had to get acquainted with the capability of the development system and its languages. The introduction of programming languages and CoDeSys are the part of my thesis. After my familiarisation with programming languages, I summarised the advantages and disadvantages of each languages. I wrote about the usage of the languages, and which language you should use in which situations.