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

fYear

2001

fDate

2001

Firstpage

453

Lastpage

458

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CCA.2001.973907

Filename

973907