Talks and Poster Presentations (with Proceedings-Entry):
P. Denzler, T. Frühwirth, A. Kirchberger, M. Schoeberl, W. Kastner:
"Static Timing Analysis of OPC UA PubSub";
Talk: 2021 17th IEEE International Conference on Factory Communication Systems (WFCS),
- 2021-06-11; in: "17th IEEE International Workshop on Factory Communication Systems 2021 WFCS 2021",
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) publish-subscribe. 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 T-CREST 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 time-predictable publishers and subscribers.
worst-case execution time, industrial software, real-time communication, OPC UA
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Electronic version of the publication:
Project Head Wolfgang Kastner:
Created from the Publication Database of the Vienna University of Technology.