EN 62541-4:2011

OPC unified architecture - Part 4: Services

IEC 62541-4:2011 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. All interactions between OPC UA Clients and Servers occur via these Services. The defined Services are considered abstract because no particular RPC mechanism for implementation is defined in this part of IEC 62541. IEC 62541-6 specifies one or more concrete mappings supported for implementation. For example, one mapping in IEC 62541-6 is to XML Web Services. In that case the Services described in this part of IEC 62541 appear as the Web service methods in the WSDL contract.

OPC Unified Architecture - Teil 4: Dienste

Architecture unifiée OPC - Partie 4: Services

La CEI 62541-4:2011 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. Toutes les interactions entre Clients et Serveurs OPC UA ont lieu via ces Services. Les Services définis sont considérés abstraits car pour leur mise en oeuvre aucun mécanisme RPC particulier n'a été spécifié dans cette partie de la CEI 62541. La CEI 62541-6 spécifie les mécanismes de mise en correspondance (mapping). Par exemple, dans la CEI 62541-6 un des mécanismes de mise en correspondance est basé sur l'utilisation des Services Web XML. Dans ce cas, les Services décrits dans la présente partie de la CEI 62541 apparaissent comme les méthodes de service web dans le contrat WSDL.

Poenotena arhitektura OPC - 4. del: Opravila (IEC 62541-4:2011)

Ta del standarda IEC 62541 določa opravila poenotene arhitekture OPC (OPC UA). Opisana opravila so zbirka abstraktnih klicev oddaljenih procedur (RPC), ki jih izvajajo strežniki poenotene arhitekture OPC, kličejo pa odjemalci poenotene arhitekture OPC. Vsi odnosi med odjemalci in strežniki poenotene arhitekture OPC potekajo prek teh opravil. Opredeljena opravila se štejejo za abstraktna, ker v tem delu standarda IEC 62541 ni opredeljen poseben mehanizem klicev oddaljenih procedur za izvajanje. IEC 62541-6 določa eno ali več konkretnih preslikav, ki imajo podporo za izvajanje. Ena preslikava v standardu IEC 62541-6 je na primer v spletne storitve XML. V tem primeru se opravila iz tega dela standarda IEC 62541 v pogodbi WSDL pojavijo kot metode spletnih storitev. Vsi strežniki poenotene arhitekture OPC ne bodo nujno izvajali vseh opredeljenih opravil. IEC 62541-7 opredeljuje profile, ki določajo, katera opravila se morajo izvajati, da bodo skladni z določenim profilom.

General Information

• Status: Withdrawn
• Publication Date: 08-Dec-2011
• Withdrawal Date: 23-Nov-2014
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 25.100.01 - Cutting tools in general
• 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
• Parallel Committee: IEC/SC 65E - IEC_SC_65E
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 29-Apr-2018
• Completion Date: 29-Apr-2018
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 62541-4:2012 - OPC unified architecture - Part 4: Services (IEC 62541-4:2011)

Relations

• Replaced By: EN 62541-4:2015 - OPC unified architecture - Part 4: Services
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2012
Poenotena arhitektura OPC - 4. del: Opravila (IEC 62541-4:2011)
OPC unified architecture - Part 4: Services (IEC 62541-4:2011)
OPC Unified Architecture - Teil 4: Dienste (IEC 62541-4:2011)
Architecture unifiée OPC - Partie 4: Services (CEI 62541-4:2011)
Ta slovenski standard je istoveten z: EN 62541-4:2011
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
December 2011
EUROPÄISCHE NORM
ICS 25.040.40; 25.100.01
English version
OPC unified architecture -
Part 4: Services
(IEC 62541-4:2011)
Architecture unifiée OPC -  OPC Unified Architecture -
Partie 4: Services Teil 4: Dienste
(CEI 62541-4:2011) (IEC 62541-4:2011)

This European Standard was approved by CENELEC on 2011-11-24. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62541-4:2011 E
Foreword
The text of document 65E/191/FDIS, future edition 1 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:
(dop) 2012-08-24
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2014-11-24
• latest date by which the national
standards conflicting with the
document have to be withdrawn
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.
Endorsement notice
The text of the International Standard IEC 62541-4:2011 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 62541-4:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC/TR 62541-1 2010 OPC unified architecture - CLC/TR 62541-1 2010
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
ISO/IEC 7498-1 Series Information technology - Open Systems - -
Interconnection - Basic Reference Model

IEC 62541-4 ®
Edition 1.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC unified architecture –
Part 4: Services
Architecture unifiée OPC –
Partie 4: Services
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 25.040.40; 25.100.01 ISBN 978-2-88912-730-6

– 2 – 62541-4 © IEC:2011
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 15
2 Normative references . 15
3 Terms, definitions and conventions . 16
3.1 Terms and definitions . 16
3.2 Abbreviations . 16
3.3 Conventions for Service definitions . 17
4 Overview . 18
4.1 Service Set model . 18
4.2 Request/response Service procedures . 21
5 Service Sets . 21
5.1 General . 21
5.2 Service request and response header . 22
5.3 Service results . 22
5.4 Discovery Service Set . 23
5.4.1 Overview . 23
5.4.2 FindServers . 24
5.4.3 GetEndpoints . 26
5.4.4 RegisterServer . 29
5.5 SecureChannel Service Set . 31
5.5.1 Overview . 31
5.5.2 OpenSecureChannel . 33
5.5.3 CloseSecureChannel . 35
5.6 Session Service Set . 35
5.6.1 Overview . 35
5.6.2 CreateSession . 36
5.6.3 ActivateSession . 39
5.6.4 CloseSession . 42
5.6.5 Cancel . 42
5.7 NodeManagement Service Set . 43
5.7.1 Overview . 43
5.7.2 AddNodes. 43
5.7.3 AddReferences . 45
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 . 49
5.8.3 BrowseNext . 51
5.8.4 TranslateBrowsePathsToNodeIds . 53
5.8.5 RegisterNodes . 55
5.8.6 UnregisterNodes . 56
5.9 Query Service Set . 56

62541-4 © IEC:2011 – 3 –
5.9.1 Overview . 56
5.9.2 Querying Views . 57
5.9.3 QueryFirst . 57
5.9.4 QueryNext . 60
5.10 Attribute Service Set . 61
5.10.1 Overview . 61
5.10.2 Read . 61
5.10.3 HistoryRead . 63
5.10.4 Write . 65
5.10.5 HistoryUpdate . 67
5.11 Method Service Set . 68
5.11.1 Overview . 68
5.11.2 Call . 68
5.12 MonitoredItem Service Set . 70
5.12.1 MonitoredItem model . 70
5.12.2 CreateMonitoredItems . 74
5.12.3 ModifyMonitoredItems . 76
5.12.4 SetMonitoringMode . 78
5.12.5 SetTriggering . 79
5.12.6 DeleteMonitoredItems . 80
5.13 Subscription Service Set . 81
5.13.1 Subscription model . 81
5.13.2 CreateSubscription . 88
5.13.3 ModifySubscription . 89
5.13.4 SetPublishingMode . 90
5.13.5 Publish . 91
5.13.6 Republish . 93
5.13.7 TransferSubscriptions . 93
5.13.8 DeleteSubscriptions . 95
6 Service behaviours . 96
6.1 Security .
...