CLC/TR 62541-1:2010

SLOVENSKI STANDARD
01-december-2010
Poenotena arhitektura OPC - 1. del: Pregled in koncepti (IEC/TR 62541-1:2010)
OPC unified architecture - Part 1: Overview and concepts (IEC/TR 62541-1:2010 )
OPC Unified Architecture - Teil 1: Übersicht und Konzepte (IEC/TR 62541-1:2010 )
Architecture unifiée OPC - Partie 1: Vue d'ensemble et concepts (IEC/TR 62541-1:2010 )
Ta slovenski standard je istoveten z: CLC/TR 62541-1:2010
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.01 Medsebojno povezovanje Open systems
odprtih sistemov na splošno interconnection in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CLC/TR 62541-1
RAPPORT TECHNIQUE
August 2010
TECHNISCHER BERICHT
ICS 25.040.40; 35.100.01
English version
OPC unified architecture -
Part 1: Overview and concepts
(IEC/TR 62541-1:2010)
Architecture unifiée OPC -  OPC Unified Architecture -
Partie 1: Vue d'ensemble et concepts Teil 1: Übersicht und Konzepte
(CEI/TR 62541-1:2010) (IEC/TR 62541-1:2010)

This Technical Report was approved by CENELEC on 2010-06-25.

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

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 62541-1:2010 E

Foreword
The text of the Technical Report IEC/TR 62541-1:2010, prepared by SC 65E, Devices and integration
in enterprise systems, of IEC TC 65, Industrial-process measurement, control and automation, was
submitted to vote and was approved by CENELEC as CLC/TR 62541-1 on 2010-06-25.

Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Report IEC/TR 62541-1:2010 was approved by CENELEC as a Technical
Report without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC/TR 62541-2 NOTE  Harmonized as CLC/TR 62541-2.
IEC 62541-3 NOTE  Harmonized as EN 62541-3.
IEC 62541-4 NOTE  Harmonized as EN 62541-4.
IEC 62541-5 NOTE  Harmonized as EN 62541-5.
IEC 62541-6 NOTE  Harmonized as EN 62541-6.
IEC 62541-8 NOTE  Harmonized as EN 62541-8.
__________
- 3 - CLC/TR 62541-1:2010
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 62541 Series OPC unified architecture EN 62541 Series

IEC/TR 62541-1 ®
Edition 1.0 2010-02
TECHNICAL
REPORT
colour
inside
OPC Unified Architecture –
Part 1: Overview and Concepts
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 25.040.40; 35.100.01 ISBN 2-8318-1080-2
– 2 – TR 62541-1 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms, definitions, abbreviations and conventions.7
3.1 Document conventions .7
3.2 Terms and definitions .7
3.3 Abbreviations .11
4 Structure of the OPC UA series .11
4.1 Structure of the IEC 62541 series of standards.11
4.2 Core specifications.12
4.3 Access type specification parts.12
4.4 Utility specification parts .13
5 IEC 62541 standards – Overview.13
5.1 UA scope .13
5.2 Introduction .13
5.3 Design goals .13
5.4 Integrated models and services .15
5.4.1 Security model.15
5.4.2 Integrated AddressSpace model .16
5.4.3 Integrated object model .17
5.4.4 Integrated services .17
5.5 Sessions .17
5.6 Redundancy .17
6 Systems concepts .17
6.1 Overview .17
6.2 OPC UA Clients.18
6.3 OPC UA Servers .19
6.3.1 General .19
6.3.2 Real objects .19
6.3.3 OPC UA Server application .19
6.3.4 OPC UA AddressSpace .20
6.3.5 Publisher/subscriber entities.20
6.3.6 OPC UA Service interface .20
6.3.7 Server to Server interactions .21
7 Service sets .22
7.1 General .22
7.2 Discovery service set .22
7.3 SecureChannel service set.22
7.4 Session service set .23
7.5 NodeManagement Service Set .23
7.6 View Service Set .24
7.7 Query Service Set .24
7.8 Attribute Service Set .24
7.9 Method Service Set .24
7.10 MonitoredItem Service Set .24

TR 62541-1 © IEC:2010(E) – 3 –
7.11 Subscription Service Set .25
Bibliography.26

Figure 1 – Organization of the OPC UA series of standards .11
Figure 2 – OPC UA target applications.14
Figure 3 – OPC UA system architecture.18
Figure 4 – OPC UA Client architecture.18
Figure 5 – OPC UA server architecture .19
Figure 6 – Peer-to-peer interactions between Servers.21
Figure 7 – Chained Server example .22
Figure 8 – SecureChannel and Session Services .23

– 4 – TR 62541-1 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPC UNIFIED ARCHITECTURE –
Part 1: Overview and Concepts
FOREWORD
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