Our goal is to increase efficiency and quality in automation engineering in machine and plant manufacturing industry by supporting modularity and reuse. This article proofs that object-oriented model-based design can beneficially be applied in industry and that the code automatically derived from the UML model can be implemented on industrial PLCs without additional effort. We had to solve the formal mapping from UML models to IEC 61131-3 program code in order to use an object-oriented approach with Unified Modeling Language (UML) as modeling notation integrated into a classical Programmable Logic Controller (PLC) programming environment (IEC 61131-3).
«