Formal Verification of Downtimeless System Evolution in Embedded Automation Controllers

Authors:
Christoph Sünder;Valeriy Vyatkin;Alois Zoitl
Affiliations:
Thales GmbH, Austria;The University of Auckland, New Zealand;Technical University of Vienna, Austria
Venue:
ACM Transactions on Embedded Computing Systems (TECS) - Special Issue on Modeling and Verification of Discrete Event Systems
Year:
2013

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Abstract

This article presents a new formal approach to validation of on-the-fly modification of control software in automation systems. The concept of downtimeless system evolution (DSE) is introduced. The DSE is essentially based on the use of IEC 61499 system architecture and formal modeling and verification of the hardware and software of an automation device. The validation is performed by means of two complimentary techniques: analytic calculations and formal verification by model-checking.