Modeling of the supervising control system of a multipurpose batch plant

A multipurpose batch plant supervising control supervises that the plant is operated according to the schedule set by the planning and scheduling of production orders module. The supervising control depends on the topology of the plant, which is not defined a priori but generated while scheduling the production orders. This requires that the supervising control system be able to generate the control structure after the generation of plant topologies. This work presents a strategy for the modeling of supervising control tasks for a multipurpose batch plant resorting to Petri nets. The modeling of the batch processing system through Petri nets is a useful tool for the description and analysis of the process, necessary for the design of a supervising control system. The present work uses C/E (Condition/Event) and P/T (Place/Transition) Petri nets to develop the model.