Structural analysis of GRAFCET control specifications
Publication date
2023-10-12
Document type
Konferenzbeitrag
Author
Organisational unit
Conference
28th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2023) ; Sinaia, Romania ; September 12-15, 2023
Project
GRAFCET Specifications to Detect Design Flaws
Publisher
IEEE
Book title
2023 IEEE 28th International Conference on Emerging Technologies and Factory Automation (ETFA)
Part of the university bibliography
✅
Language
English
Abstract
The graphical modeling language GRAFCET is used as a formal specification language in industrial control design. This paper proposes a structural analysis that approximates the variable values of GRAFCET to allow verification on specification level. GRAFCET has different elements resulting in concurrent behavior, which in general results in a large state space for analyses like model checking. The proposed analysis approach approximates that state space and takes into consideration the entire set of GRAFCET elements leading to concurrent behavior. The analysis consists of two parts: We present an algorithm analyzing concurrent steps to approximate the step variables and we adapt analysis means from the field of Petri nets to approximate internal and output variables. The proposed approach is evaluated using an industrial-sized example to demonstrate that the analysis is capable of verifying behavioral errors and is not limited by the specification size of practical plants.
Version
Published version
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Metadata only access