Formal models for conformance test of programmable logic controllers

Anaïs Guignard (1) , Jean-Marc Faure (1)

1 LURPA - Laboratoire Universitaire de Recherche en Production Automatisée

Conformance test is a formal method that is aiming at checking whether an implementation, a Programmable Logic Controller (PLC) in this study, behaves as described by its specification. This method requires naturally a formal model of the specification. This paper shows how such a model can be built from a non-formal model in the IEC 60848 standardized language and the knowledge of the execution mode of this model by the PLC. Application to a simple example highlights the significance of the consideration of the execution mode for conformance test.

Mots clés: conformance test; Grafcet; location automaton; stability; transient evolution

Domaines: Automatique

Anaïs Guignard, Jean-Marc Faure. Formal models for conformance test of programmable logic controllers. Journal Européen des Systèmes Automatisés (JESA), 2013, 47 (4-8), pp.423-446. ⟨10.3166/jesa.47.423-446⟩. ⟨hal-01065565⟩