Record link: 
http://hdl.handle.net/20.500.12708/150269
https://doi.org/10.34726/3506
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Title: 
Concurrent OPC UA information model access, enabling real-time OPC UA PubSub
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Citation: 
Denzler, P., Ashjaei, M., Frühwirth, T., Ebirim, V. N., & Kastner, W. (2022). Concurrent OPC UA information model access, enabling real-time OPC UA PubSub. In 2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation (ETFA) (pp. 1–4). Institute of Electrical and Electronic Engineers, Inc (IEEE). https://doi.org/10.34726/3506
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reposiTUm DOI: 
10.34726/3506
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CatalogPlus: 
AC17202381
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Publisher DOI: 
10.1109/ETFA52439.2022.9921438
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Publication Type: 
Inproceedings - Full-Paper Contribution
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Language: 
English
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Authors: 
Denzler, Patrick 
Ashjaei, Mohammad 
Frühwirth, Thomas 
Ebirim, Victor Nicholas 
Kastner, Wolfgang 
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Organisational Unit: 
E191-03 - Forschungsbereich Automation Systems 
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Published in: 
2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation (ETFA) 
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ISBN: 
978-1-6654-9996-5
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DOI of the book: 
10.1109/ETFA52439.2022
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Date (published): 
25-Oct-2022
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Event name: 
2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation (ETFA) 
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Event date: 
6-Sep-2022 - 9-Sep-2022
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Event place: 
Stuttgart, Germany
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Number of Pages: 
4
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Publisher: 
Institute of Electrical and Electronic Engineers, Inc (IEEE)
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Keywords: 
OPC Unified Architecture; real-time Pub-Sub; TSN
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Abstract: 
Ongoing changes in industrial automation aim to-wards a flat and highly interconnected architecture that includes end-to-end real-time enabled machine-to-machine communications. Several technologies, such as OPC Unified Architecture (OPC UA) publish-subscribe and time-sensitive networking (TSN), facilitate that change. While OPC UA PubSub and TSN can already provide real-time capabilities, the parallel operation with standard OPC UA client-server remains an open challenge. This article presents preliminary results for solving concurrent information model access between OPC UA PubSub and client-server. The results include the overall RT-TSN-OPC UA concept, an analysis of common concurrent data access mechanisms for their suitability, and identifying critical code segments in the open62541 OPC UA stack. The paper concludes by outlining further research focusing on implementing and evaluating a wait-and obstruction-free mechanism into open62541.
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Project (external): 
Austrian Research Promotion Agency (FFG) via the Austrian Competence Center for Digital Production (CDP)
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Project ID: 
881843
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Research Areas: 
Digital Transformation in Manufacturing: 20%
Automation and Robotics: 80%
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Science Branch: 
1020 - Informatik: 80%
2020 - Elektrotechnik, Elektronik, Informationstechnik: 20%
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License: 
In Copyright
en
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