Supporting the changeability of SIPN-based logic control algorithms by verification and validation

Stéphane Klein (1, 2) , Georg Frey (2) , Jean-Jacques Lesage (1) , Lothar Litz (2)

1 LURPA - Laboratoire Universitaire de Recherche en Production Automatisée
2 AT+ - Institute of Automatic Control

In this paper the advantages of verification and validation to support changes of an existing PLC program are shown. The controller is defined using Signal Interpreted Petri Nets (SIPN) and verification and validation are performed using symbolic model-checking. The main focus of this paper is to show the process and the benefits of verification and validation for the reliability of the control algorithm when specified changes are to make. This is clarified by the example of a heating tank controller throughout the text.

Domaines: Automatique / Robotique

Stéphane Klein, Georg Frey, Jean-Jacques Lesage, Lothar Litz. Supporting the changeability of SIPN-based logic control algorithms by verification and validation. IMACS-IEEE int. conf. on Computational Engineering in Systems Applications (CESA'03), Jul 2003, Lille, France. paper S2-I-04-0176. ⟨hal-00425210⟩