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Domain-Driven Probabilistic Analysis of Programmable Logic Controllers

  • Hehua Zhang
  • Yu Jiang
  • William N. N. Hung
  • Xiaoyu Song
  • Ming Gu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6991)

Abstract

Programmable Logic Controllers are widely used in industry. Reliable PLCs are vital to many critical applications. This paper presents a novel symbolic approach for analysis of PLC systems. The main components of the approach consists of: (1) calculating the uncertainty characterization of the PLC systems, (2) abstracting the PLC system as a Hidden Markov Model, (3) solving the Hidden Markov Model using domain knowledge, (4) integrating the solved Hidden Markov Model and the uncertainty characterization to form an integrated (regular) Markov Model, and (5) harnessing probabilistic model checking to analyze properties on the resultant Markov Model. The framework provides expected performance measures of the PLC systems by automated analytical means without expensive simulations. Case studies on an industrial automated system are performed to demonstrate the effectiveness of our approach.

Keywords

PLC Hidden Markov Model Probabilistic Analysis 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Hehua Zhang
    • 1
  • Yu Jiang
    • 2
  • William N. N. Hung
    • 3
  • Xiaoyu Song
    • 4
  • Ming Gu
    • 1
  1. 1.School of SoftwareTNLIST, Tsinghua UniversityChina
  2. 2.School of Computer ScienceTNLIST, Tsinghua UniversityChina
  3. 3.Synopsys Inc.Mountain ViewUSA
  4. 4.Dept. ECEPortland State UniversityOregonUSA

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