Timing Analysis of TSN-Enabled OPC UA PubSub

Patrick Denzler; Thomas Fruhwirth; Daniel Scheuchenstuhl; Martin Schoeberl; Wolfgang Kastner

doi:10.1109/WFCS53837.2022.9779177

Timing Analysis of TSN-Enabled OPC UA PubSub

Patrick Denzler, Thomas Fruhwirth, Daniel Scheuchenstuhl, Martin Schoeberl, Wolfgang Kastner

TU Wien

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Industrial automation is changing towards a flat and highly interconnected architecture, with requirements for end-to-end real-time enabled machine-to-machine communications. Technologies such as time-sensitive networking (TSN) and OPC Unified Architecture (OPC UA) publish-subscribe provide the necessary features. While TSN is well explored, OPC UA's execution time behavior remains unknown. This article presents findings made while extending the open62541 OPC UA Pub Sub stack with the 802.1q VLAN tag to enable IEEE 802.1Qbv time-aware scheduling. The results include end-to-end timing measures and worst-case execution time analyses considering various payloads. Time-predictable T-CREST platforms host the publisher and subscriber, and a TSN network handles message transmission. The paper concludes by outlining further research focusing on dynamic memory access, buffer management, and the inclusion of non-priority access to the Ethernet port.

Original language	English
Title of host publication	Proceedings of 18^th IEEE International Workshop on Factory Communication Systems
Publisher	IEEE
Publication date	2022
ISBN (Electronic)	9781665410861
DOIs	https://doi.org/10.1109/WFCS53837.2022.9779177
Publication status	Published - 2022
Event	18^th IEEE International Workshop on Factory Communication Systems - Virtual Event, Pavia, Italy Duration: 27 Apr 2022 → 29 Apr 2022 https://wfcs22.unipv.it

Conference

Conference	18^th IEEE International Workshop on Factory Communication Systems
Location	Virtual Event
Country/Territory	Italy
City	Pavia
Period	27/04/2022 → 29/04/2022
Internet address	https://wfcs22.unipv.it

Keywords

OPC UA
Real-time communication
Time-sensitive net-working (TSN)
Worst-Case Execution Time

Access to Document

10.1109/WFCS53837.2022.9779177

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title = "Timing Analysis of TSN-Enabled OPC UA PubSub",

abstract = "Industrial automation is changing towards a flat and highly interconnected architecture, with requirements for end-to-end real-time enabled machine-to-machine communications. Technologies such as time-sensitive networking (TSN) and OPC Unified Architecture (OPC UA) publish-subscribe provide the necessary features. While TSN is well explored, OPC UA's execution time behavior remains unknown. This article presents findings made while extending the open62541 OPC UA Pub Sub stack with the 802.1q VLAN tag to enable IEEE 802.1Qbv time-aware scheduling. The results include end-to-end timing measures and worst-case execution time analyses considering various payloads. Time-predictable T-CREST platforms host the publisher and subscriber, and a TSN network handles message transmission. The paper concludes by outlining further research focusing on dynamic memory access, buffer management, and the inclusion of non-priority access to the Ethernet port. ",

keywords = "OPC UA, Real-time communication, Time-sensitive net-working (TSN), Worst-Case Execution Time",

author = "Patrick Denzler and Thomas Fruhwirth and Daniel Scheuchenstuhl and Martin Schoeberl and Wolfgang Kastner",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 18<sup>th</sup> IEEE International Workshop on Factory Communication Systems, WFCS 2022 ; Conference date: 27-04-2022 Through 29-04-2022",

year = "2022",

doi = "10.1109/WFCS53837.2022.9779177",

language = "English",

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T1 - Timing Analysis of TSN-Enabled OPC UA PubSub

AU - Denzler, Patrick

AU - Fruhwirth, Thomas

AU - Scheuchenstuhl, Daniel

AU - Schoeberl, Martin

AU - Kastner, Wolfgang

PY - 2022

Y1 - 2022

N2 - Industrial automation is changing towards a flat and highly interconnected architecture, with requirements for end-to-end real-time enabled machine-to-machine communications. Technologies such as time-sensitive networking (TSN) and OPC Unified Architecture (OPC UA) publish-subscribe provide the necessary features. While TSN is well explored, OPC UA's execution time behavior remains unknown. This article presents findings made while extending the open62541 OPC UA Pub Sub stack with the 802.1q VLAN tag to enable IEEE 802.1Qbv time-aware scheduling. The results include end-to-end timing measures and worst-case execution time analyses considering various payloads. Time-predictable T-CREST platforms host the publisher and subscriber, and a TSN network handles message transmission. The paper concludes by outlining further research focusing on dynamic memory access, buffer management, and the inclusion of non-priority access to the Ethernet port.

AB - Industrial automation is changing towards a flat and highly interconnected architecture, with requirements for end-to-end real-time enabled machine-to-machine communications. Technologies such as time-sensitive networking (TSN) and OPC Unified Architecture (OPC UA) publish-subscribe provide the necessary features. While TSN is well explored, OPC UA's execution time behavior remains unknown. This article presents findings made while extending the open62541 OPC UA Pub Sub stack with the 802.1q VLAN tag to enable IEEE 802.1Qbv time-aware scheduling. The results include end-to-end timing measures and worst-case execution time analyses considering various payloads. Time-predictable T-CREST platforms host the publisher and subscriber, and a TSN network handles message transmission. The paper concludes by outlining further research focusing on dynamic memory access, buffer management, and the inclusion of non-priority access to the Ethernet port.

KW - OPC UA

KW - Real-time communication

KW - Time-sensitive net-working (TSN)

KW - Worst-Case Execution Time

U2 - 10.1109/WFCS53837.2022.9779177

DO - 10.1109/WFCS53837.2022.9779177

M3 - Article in proceedings

AN - SCOPUS:85131788487

BT - Proceedings of 18th IEEE International Workshop on Factory Communication Systems

PB - IEEE

T2 - 18<sup>th</sup> IEEE International Workshop on Factory Communication Systems

Y2 - 27 April 2022 through 29 April 2022

ER -

Timing Analysis of TSN-Enabled OPC UA PubSub

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Keywords

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