Finite State Machine Based Modelling of Discrete Control Algorithm in LAD Diagram Language With Use of New Generation Engineering Software

摘要

In the paper there is described a process of modeling the discrete control system for a chemical reactor. In the design of the control algorithm there was used Finite State Machine methodology as one of the more effective for modeling complex control tasks. There were identified input and output signals of the process, the dependencies and operating rules and the system operation was described. The modeled algorithm was implemented in LAD diagram language with use of novel control engineering software - TIA Portal by Siemens. The implementation process is described and discussed, implementation results are shown and a conclusion is drawn.