Static Timing Analysis of OPC UA PubSub

Patrick Denzler, Thomas Frühwirth, Andreas Kirchberger, Martin Schoeberl, Wolfgang Kastner

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

227 Downloads (Pure)


Industrial automation is changing towards higher integration and seamless communication. A stepping stone is end-to-end real-time machine-to-machine communication, now becoming feasible with technologies such as time-sensitive networking (TSN) and OPC Unified Architecture (OPC UA) publishsubscribe. While TSN takes care of communication, the OPC UA stack’s execution time behavior remains unknown. This paper highlights experiences made while adjusting the OPC UA subscriber of the open62541 stack for worst-case execution time (WCET) analysis. Two directly connected time-predictable TCREST platforms hosting the publisher and subscriber delivered end-to-end timing measures validating the WCET estimates. The paper concludes by outlining further research with several timepredictable publishers and subscribers.
Original languageEnglish
Title of host publicationProceedings of 17th IEEE International Conference on Factory Communication Systems
Publication date2021
ISBN (Print)9781665424783
Publication statusPublished - 2021
Event2021 17th IEEE International Conference on Factory
Communication Systems
- Johannes Kepler University Linz, Linz, Austria
Duration: 9 Jun 202111 Jun 2021


Conference2021 17th IEEE International Conference on Factory
Communication Systems
LocationJohannes Kepler University Linz
Internet address


  • Worst-case execution time
  • Industrial software
  • Real-time communication
  • OPC UA


Dive into the research topics of 'Static Timing Analysis of OPC UA PubSub'. Together they form a unique fingerprint.

Cite this