Safety PLC Programming Based on UML Statechart

The paper deals with a systematic approach to programming a program for safety PLC (Programmable Logic Controllers) based on the description of the required function by the UML (Unified Modeling Language) statechart. This procedure can be used to achieve systematic safety integrity of the control system with the safety PLC. Rhapsody tool is used as software support for UML and the application example is implemented on safety PLC Simatic.