Increasing the efficiency of PLC Program Verification using a plant model

Abstract : More extensive work on formal methods is now available for checking PLC (Programmable Logic Controller) programs. Some approaches propose taking into account just the control system model, while others include a plant model as well. Accordingly, the level of detail of the model is very different from one approach to the next. In this paper, we explore the contribution of such a plant model within the context of formal verification by means of Symbolic Model-Checking. Our study is primarily experimental in nature and based on a case study. A set of properties to be checked and a detailed plant model are both proposed. We then analyze how a Symbolic Model-Checking tool (the NuSMV has been selected) ensures verification of these properties either with or without a plant model.
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José Machado, Bruno Denis, Jean-Jacques Lesage, Jean-Marc Faure, Jaime Ferreira da Silva. Increasing the efficiency of PLC Program Verification using a plant model. 6th International Conférence on Industrial Enginneering and Production Management (IEPM'03), May 2003, Porto, Portugal. Paper ormhm-4, 10 p. ⟨hal-00424030⟩

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