EN 62541-4:2015

OPC unified architecture - Part 4: Services

IEC 62541-4:2015 defines the OPC Unified Architecture (OPC UA) Services. The Services described are the collection of abstract Remote Procedure Calls (RPC) that are implemented by OPC UA Servers and called by OPC UA Clients. This second edition cancels and replaces the first edition published in 2011. It constitutes a technical revision. It includes the following changes: - Update for 6.4 Redundancy. - Clarifications for Publish and Reconnect scenarios. - Handling of MonitoredItem changes in short network interruption scenarios. - Update for 6.1.3 Determining if a Certificate is Trusted. - Revised definition of parameters semaphoreFile and isOnline in Service RegisterServer. - Services ModifySubscription and ModifyMonitoredItems.

OPC Unified Architecture - Teil 4: Dienste

Architecture unifiée OPC - Partie 4: Services

L'IEC 62541-4:2015 définit les Services de l'Architecture Unifiée OPC (OPC UA). Les Services décrits sont le recueil d'appels de procédures abstraites distantes (RPC - Remote Procedure Calls) qui sont mises en oeuvre par les Serveurs OPC UA et qui sont appelées par les Clients OPC UA. Cette deuxième édition annule et remplace la première édition parue en 2011. Elle constitue une révision technique. Cette édition inclut les modifications suivantes: - Mise à jour de 6.4 Redondance. - Clarifications pour les scénarios Publish et Reconnect. - Gestion des modifications de MonitoredItem dans les scénarios de courte interruption du réseau. - Mise à jour de 6.1.3 Déterminer si un Certificat est fiable. - Révision de la définition des paramètres semaphoreFile et isOnline dans le Service. - Services ModifySubscription et ModifyMonitoredItems.

Enotna arhitektura OPC - 4. del: Storitve (IEC 62541-4:2015)

Ta del standarda IEC 62541 določa storitve enotne arhitekture OPC (OPC UA). Opisane storitve so zbirka abstraktnih klicev oddaljenih procedur (RPC), ki jih izvajajo strežniki enotne arhitekture OPC, kličejo pa odjemalci enotne arhitekture OPC. Vsi odnosi med odjemalci in strežniki enotne arhitekture OPC potekajo prek teh storitev. Opredeljene storitve se štejejo za abstraktne, ker v tem delu ni opredeljen poseben mehanizem klicev oddaljenih procedur za izvajanje. IEC 62541-6 določa eno ali več konkretnih načrtovanj, ki imajo podporo za izvajanje. Eno načrtovanje v standardu IEC 62541-6 na primer zajema spletne storitve XML. V tem primeru se storitve iz tega dela v pogodbi WSDL pojavijo kot metode spletnih storitev. Vsi strežniki enotne arhitekture OPC ne bodo nujno izvajali vseh opredeljenih storitev. Standard IEC 62541-7 opredeljuje profile, ki določajo, katere storitve se morajo izvajati, da bodo skladne z določenim profilom.

General Information

• Status: Withdrawn
• Publication Date: 28-May-2015
• Withdrawal Date: 28-Apr-2018
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100 - Open systems interconnection (OSI)
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65E - IEC_SC_65E
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 17-Aug-2023
• Completion Date: 17-Aug-2023
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 62541-4:2015 - OPC Unified Architecture - Part 4: Services (IEC 62541-4:2015)

Relations

• Replaces: EN 62541-4:2011 - OPC unified architecture - Part 4: Services
• Effective Date: 29-Jan-2023
• Replaced By: EN IEC 62541-4:2020 - OPC Unified Architecture - Part 4: Services
• Effective Date: 22-Sep-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2015
1DGRPHãþD
SIST EN 62541-4:2012
Enotna arhitektura OPC - 4. del: Storitve (IEC 62541-4:2015)
OPC Unified Architecture - Part 4: Services (IEC 62541-4:2015)
OPC unified architecture - Part 4: Services (IEC 62541-4:2015)
Architecture unifiée OPC - Partie 4: Services (IEC 62541-4:2015)
Ta slovenski standard je istoveten z: EN 62541-4:2015
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62541-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 35.100; 25.040.40 Supersedes EN 62541-4:2011
English Version
OPC unified architecture - Part 4: Services
(IEC 62541-4:2015)
Architecture unifiée OPC - Partie 4: Services OPC Unified Architecture - Teil 4: Dienste
(IEC 62541-4:2015) (IEC 62541-4:2015)
This European Standard was approved by CENELEC on 2015-04-29. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62541-4:2015 E
Foreword
The text of document 65E/375/CDV, future edition 2 of IEC 62541-4, prepared by SC 65E "Devices
and integration in enterprise systems", of IEC/TC 65 "Industrial-process measurement, control and
automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at (dop) 2016-01-29
national level by publication of an identical national
standard or by endorsement
(dow) 2018-04-29
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 62541-4:2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
Endorsement notice
The text of the International Standard IEC 62541-4:2015 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 62541-4:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC/TR 62541-1 - OPC unified architecture - CLC/TR 62541-1 -
Part 1: Overview and concepts
IEC/TR 62541-2 - OPC unified architecture - CLC/TR 62541-2 -
Part 2: Security model
IEC 62541-3 -  OPC unified architecture - EN 62541-3 -
Part 3: Address Space Model
IEC 62541-5 -  OPC unified architecture - EN 62541-5 -
Part 5: Information Model
IEC 62541-6 -  OPC unified architecture - EN 62541-6 -
Part 6: Mappings
IEC 62541-7 -  OPC unified architecture - EN 62541-7 -
Part 7: Profiles
IEC 62541-8 -  OPC Unified Architecture - EN 62541-8 -
Part 8: Data Access
IEC 62541-11 -  OPC unified architecture - EN 62541-11 -
Part 11: Historical Access
IEC 62541-13 -  OPC unified architecture - EN 62541-13 -
Part 13: Aggregates
IEC 62541-4 ®
Edition 2.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC Unified Architecture –
Part 4: Services
Architecture Unifiée OPC –
Partie 4: Services
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100 ISBN 978-2-8322-2369-7

– 2 – IEC 62541-4:2015 © IEC 2015
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and conventions . 15
3.1 Terms and definitions . 15
3.2 Abbreviations and symbols . 15
3.3 Conventions for Service definitions . 16
4 Overview . 17
4.1 Service Set model . 17
4.2 Request/response Service procedures . 21
5 Service Sets . 21
5.1 General . 21
5.2 Service request and response header . 21
5.3 Service results . 21
5.4 Discovery Service Set . 23
5.4.1 Overview . 23
5.4.2 FindServers . 24
5.4.3 GetEndpoints . 25
5.4.4 RegisterServer . 28
5.5 SecureChannel Service Set . 31
5.5.1 Overview . 31
5.5.2 OpenSecureChannel . 32
5.5.3 CloseSecureChannel . 35
5.6 Session Service Set . 36
5.6.1 Overview . 36
5.6.2 CreateSession . 36
5.6.3 ActivateSession . 40
5.6.4 CloseSession . 43
5.6.5 Cancel . 43
5.7 NodeManagement Service Set . 44
5.7.1 Overview . 44
5.7.2 AddNodes . 44
5.7.3 AddReferences . 46
5.7.4 DeleteNodes . 47
5.7.5 DeleteReferences . 48
5.8 View Service Set . 49
5.8.1 Overview . 49
5.8.2 Browse . 50
5.8.3 BrowseNext . 52
5.8.4 TranslateBrowsePathsToNodeIds . 54
5.8.5 RegisterNodes . 56
5.8.6 UnregisterNodes . 57
5.9 Query Service Set . 57
5.9.1 Overview . 57
5.9.2 Querying Views . 58
5.9.3 QueryFirst . 58

IEC 62541-4:2015 © IEC 2015 – 3 –
5.9.4 QueryNext . 62
5.10 Attribute Service Set . 63
5.10.1 Overview . 63
5.10.2 Read . 63
5.10.3 HistoryRead . 65
5.10.4 Write . 67
5.10.5 HistoryUpdate . 69
5.11 Method Service Set . 70
5.11.1 Overview . 70
5.11.2 Call . 71
5.12 MonitoredItem Service Set . 73
5.12.1 MonitoredItem model . 73
5.12.2 CreateMonitoredItems . 79
5.12.3 ModifyMonitoredItems . 81
5.12.4 SetMonitoringMode . 83
5.12.5 SetTriggering . 84
5.12.6 DeleteMonitoredItems . 85
5.13 Subscription Service Set . 86
5.13.1 Subscription model . 86
5.13.2 CreateSubscription . 93
5.13.3 ModifySubscription . 94
...