A Signal-Interpreted Approach to the Supervisory Control Theory – Extension to Partially Controllable Signals. Issue 7 (2018)

• Record Type: Journal Article
• Authors: Desgeorges, Loïc; Provost, Julien
• Is Part Of: IFAC-PapersOnLine. Volume 51:Issue 7(2018)
• Page Start: 442
• Page End: 447
• Publication Date: 2018
• Subjects: Discrete-Event Systems -- Supervisory Control Theory -- Programmable Logic Controllers -- Automata -- Finite State Machine; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2018.06.338
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: After highlighting the difficulties encountered while implementing a supervisor on actual industrial controllers and different approaches already suggested to tackle them, this paper presents a signal-interpreted approach to the Supervisory Control Theory (SCT) framework. This work focuses on further developments of this approach for reactive systems. Due to fundamental differences between event- and signal-based approaches, new algorithms have to be implemented to apply an SCT approach on the basis of signal-interpreted Boolean finite automata extended with variables. Also, compared to a previous version of this approach, partially controllable signals are introduced.