Title :
Modular implementation of discrete event systems as sequential function charts applied to an assembly cell
Author :
Hellgren, Anders ; Fabian, Martin ; Lennartson, Bengt
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
Modular implementation of discrete event models in programmable logic controllers (PLCs) using sequential function charts (SFCs) is investigated. Synchronisation of such models, typically finite state automata of Petri nets, is not well defined in the synchronous PLC-world. We develop an algorithm that computes event monitors for synchronising concurrently executing SFCs. The methodology is applied to an assembly cell
Keywords :
Petri nets; assembling; discrete event systems; finite automata; flexible manufacturing systems; industrial robots; programmable controllers; synchronisation; Petri nets; assembly cell; discrete event systems; finite state automata; flexible manufacturing systems; modular implementation; programmable logic controllers; sequential function charts; synchronisation; Assembly systems; Automata; Automatic control; Control system synthesis; Control systems; Discrete event systems; Manufacturing systems; Petri nets; Programmable control; Supervisory control;
Conference_Titel :
Control Applications, 2001. (CCA '01). Proceedings of the 2001 IEEE International Conference on
Conference_Location :
Mexico City
Print_ISBN :
0-7803-6733-2
DOI :
10.1109/CCA.2001.973907
