In: Automatica, Vol. 30, No. 10, pages 1513-1525. 1994.
Abstract: The paper describes the application of Grafcet to supervisory, knowledge-based applications. Grafchart, a grafcet-based toolbox, has been implemented in the real-time expert system environment G2. The toolbox supports steps, transitions, parallel paths, macro steps, and exception transitions. Several applications of the toolbox are presented. One of these is a full-scale industrial application where Grafchart is used to implement a hydrogen balance advisory control system.
Keywords: Grafcet, Grafchart, Petri nets, artificial intelligence, supervisory control.
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