Modelling and analysis of a commercial field bus protocol

  • Authors:
  • Alexandre David;Wang Yi

  • Affiliations:
  • Uppsala University, Department of Computer Science, Uppsala, Sweden;Uppsala University, Department of Computer Science, Uppsala, Sweden

  • Venue:
  • Euromicro-RTS'00 Proceedings of the 12th Euromicro conference on Real-time systems
  • Year:
  • 2000

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Abstract

We report on an industrial application of UPPAAL, in which a commercial field bus protocol (AF100) is modelled and analysed using the tool. During the case study, a number of imperfections in the protocol logic and its implementation are found and the error sources are debugged based on abstract models of the protocol; respective improvements have been suggested. In this paper, we shall summarize our experiences in dealing with the complexity of the protocol using various modelling and abstraction features provided in UPPAAL. As an example, we study the bus coupler of AF100, which serves as the data link layer of the protocol.