Feasibility of the Use of Formal Methods for Manufacturing Systems

In the manufacturing domain, if programmable logic controllers (PLC) are used to manage safety functions, these systems need to be more reliable when faced with software errors. To estimate the applicability of formal methods for the safety of the control systems of machines, the Institut National d...

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Bibliographic Details
Published in:Formal Methods Applied to Complex Systems: Implementation of the B Method pp. 349 - 390
Main Authors: Lamy, Pascal, Charpentier, Philippe, Petin, Jean‐François, Evrot, Dominique
Format: Book Chapter
Language:English
Published: Hoboken, NJ, USA John Wiley & Sons, Inc 26.06.2014
Subjects:
B method
formal methods
INRS
model‐checking verification techniques
programmable logic controllers (PLC)
semi‐formal models
ISBN:1848217099, 9781848217096
Online Access:Get full text
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Summary:In the manufacturing domain, if programmable logic controllers (PLC) are used to manage safety functions, these systems need to be more reliable when faced with software errors. To estimate the applicability of formal methods for the safety of the control systems of machines, the Institut National de Recherche et de Sécurité (INRS) has begun a research program which aims to develop the application software of a machine using these methods. The chapter presents the different stages of the development, from specification to validation, of a software package installed on a safety PLC with two different methods: the B method and a method which combines semi‐formal models and model‐checking verification techniques. The properties may then be formally verified a posteriori, using a proof tool. The chapter concludes with some remarks concerning the applicability of these methods for the creation of software implemented on a safety PLC in a “machines” industrial context.
ISBN:1848217099
9781848217096
DOI:10.1002/9781119002727.ch12