In order to master the fast-changing requirements of embedded and PC-controlled industrial applications, it is increasingly important to master and apply different programming languages. This is complicated by the huge variety of programming software available. Differences in user-interface, functionality and commands sets cause confusion and make mistakes more likely. CoDeSys – a tried and tested, globally-introduced hardware-independent software from 3S offers a Controller Development System according to the IEC 61131-3 with all defined programming languages independent of the hardware manufacturer. This training demystifies CoDeSys and gives participants confidence in using it.