Geodesic
Construction of PLC IL-Programs by LTL-Specification
Modelirovanie i analiz informacionnyh sistem, Tome 21 (2014) no. 2, pp. 26-38

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An approach to the construction and verification of PLC IL-programs for discrete problems is proposed. For the specification of the program behavior, we use the linear-time temporal logic LTL. Programming is carried out in the IL-language (Instruction List) according to an LTL-specification. The correctness analysis of an LTL-specification is carried out by the symbolic model checking tool Cadence SMV. A new approach to programming and verification of PLC IL-programs is shown by an example. For a discrete problem, we give an IL-program and its LTL-specification. The purpose of the article is to describe an approach to programming PLC, which would provide a possibility of IL-program correctness analysis by the model checking method. Under the proposed approach, the change of the value of each program variable is described by a pair of LTL-formulas. The first LTL-formula describes situations which increase the value of the corresponding variable, the second LTL-formula specifies conditions leading to a decrease of the variable value. The LTL-formulas (used for specification of the corresponding variable behavior) are constructive in the sense that they construct the PLC-program (IL-program), which satisfies temporal properties expressed by these formulas. Thus, the programming of PLC is reduced to the construction of LTL-specification of the behavior of each program variable. In addition, an SMV-model of a PLC IL-program is constructed according to LTL-specification. Then, the SMV-model is analysed by the symbolic model checking tool Cadence SMV.
Keywords: programmable logic controllers, software engineering, specification and verification of PLC-programs
Mots-clés : Instruction List. 
@article{MAIS_2014_21_2_a2,
     author = {D. A. Ryabukhin and E. V. Kuzmin and V. A. Sokolov},
     title = {Construction of {PLC} {IL-Programs} by {LTL-Specification}},
     journal = {Modelirovanie i analiz informacionnyh sistem},
     pages = {26--38},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAIS_2014_21_2_a2/}
}
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D. A. Ryabukhin; E. V. Kuzmin; V. A. Sokolov. Construction of PLC IL-Programs by LTL-Specification. Modelirovanie i analiz informacionnyh sistem, Tome 21 (2014) no. 2, pp. 26-38. http://geodesic.mathdoc.fr/item/MAIS_2014_21_2_a2/