OPC Unified Architecture - Part 5: Information Model

This part of IEC 62541 defines the Information Model of the OPC Unified Architecture. The
Information Model describes standardized Nodes of a Server’s AddressSpace. These Nodes
are standardized types as well as standardized instances used for diagnostics or as entry
points to server-specific Nodes. Thus, the Information Model defines the AddressSpace of an
empty OPC UA Server. However, it is not expected that all Servers will provide all of these
Nodes.

OPC Unified Architecture - Teil 5: Informationsmodell

Architecture unifiée OPC - Partie 5: Modèle d'informations

IEC 62541-5:2020 est disponible sous forme de IEC 62541-5:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.IEC 62541-5:2020 définit le Modèle d'information de l'Architecture unifiée OPC. Le Modèle d'information décrit des Nœuds normalisés de l'AddressSpace d'un Serveur. Ces Nœuds sont des types normalisés ainsi que des instances normalisées utilisés pour le diagnostic ou comme des points d'entrée à des Nœuds spécifiques au serveur. Ainsi, le Modèle d'information définit l'AddressSpace d'un Serveur OPC UA vide. Cependant, tous les Serveurs ne sont pas supposés fournir la totalité de ces Nœuds. Cette troisième édition annule et remplace la deuxième édition parue en 2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout de l'Annexe F concernant l'Authentification des utilisateurs; description du Modèle d'information de rôle qui autorise également la configuration des Rôles; b) ajout de nouveaux types de données: "Union", "Decimal", "OptionSet", "DateString", "TimeString", "DurationString", "NormalizedString", "DecimalString" et "AudioDataType"; c) ajout d'une méthode afin de demander un changement d'état dans un Serveur; d) ajout d'une méthode afin de définir un Abonnement en mode persistant; e) ajout d'une méthode afin de demander le renvoi de données à partir d'un Abonnement; f) ajout en C.4 d'un concept permettant la création temporaire d'un fichier pour l'écriture ou la lecture sur un serveur; g) ajout d'un nouveau type de Variable afin de prendre en charge les Listes de sélection; h) ajout de propriétés facultatives au FiniteStateMachineType afin de présenter les états et transitions actuellement disponibles; i) ajout d'une propriété UrisVersion au ServerType. Ces informations de version peuvent être utilisées pour l'invocation de services sans session.

Enotna arhitektura OPC - 5. del: Informacijski model

General Information

Status
Published
Publication Date
09-Nov-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-Oct-2020
Due Date
12-Dec-2020
Completion Date
10-Nov-2020

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SLOVENSKI STANDARD
SIST EN IEC 62541-5:2020
01-december-2020
Nadomešča:
SIST EN 62541-5:2015
Enotna arhitektura OPC - 5. del: Informacijski model
OPC Unified Architecture - Part 5: Information Model
OPC Unified Architecture - Teil 5: Informationsmodell
Architecture unifiée OPC - Partie 5: Modèle d'informations
Ta slovenski standard je istoveten z: EN IEC 62541-5:2020
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
SIST EN IEC 62541-5:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 62541-5:2020
---------------------- Page: 2 ----------------------
SIST EN IEC 62541-5:2020
EUROPEAN STANDARD EN IEC 62541-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 35.100.05; 25.040.40 Supersedes EN 62541-5:2015 and all of its amendments
and corrigenda (if any)
English Version
OPC Unified Architecture - Part 5: Information Model
(IEC 62541-5:2020)

Architecture unifiée OPC - Partie 5: Modèle d'information OPC Unified Architecture - Teil 5: Informationsmodell

(IEC 62541-5:2020) (IEC 62541-5:2020)

This European Standard was approved by CENELEC on 2020-08-14. 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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62541-5:2020 E
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SIST EN IEC 62541-5:2020
EN IEC 62541-5:2020 (E)
European foreword

The text of document 65E/717/FDIS, future edition 3 of IEC 62541-5, 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

EN IEC 62541-5:2020.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-05-14

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-08-14

document have to be withdrawn

This document supersedes EN 62541-5:2015 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC 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.
Endorsement notice

The text of the International Standard IEC 62541-5:2020 was approved by CENELEC as a European

Standard without any modification.
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SIST EN IEC 62541-5:2020
EN IEC 62541-5:2020 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1 Where 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 - Part 1: Overview CLC/TR 62541-1 -
and concepts
IEC 62541-3 - OPC Unified Architecture - Part 3: Address EN IEC 62541-3 -
Space Model
IEC 62541-4 - OPC Unified Architecture - Part 4: Services EN IEC 62541-4 -
IEC 62541-6 - OPC Unified Architecture - Part 6: EN IEC 62541-6 -
Mappings
IEC 62541-7 - OPC unified architecture - Part 7: Profiles EN IEC 62541-7 -
IEC 62541-9 - OPC Unified Architecture - Part 9: Alarms EN IEC 62541-9 -
and Conditions
IEC 62541-10 - OPC Unified Architecture - Part 10: EN IEC 62541-10 -
Programs
IEC 62541-11 - OPC Unified Architecture - Part 11: EN IEC 62541-11 -
Historical Access
ISO/IEC/IEEE 2011 Information technology - Microprocessor - -
60559 Systems - Floating-Point arithmetic
IETF RFC 2045 - Multipurpose Internet Mail Extensions - -
(MIME) Part 1: Format of Internet Message
Bodies
IETF RFC 2046 - Multipurpose Internet Mail Extensions - -
(MIME) - Part Two: Media Types
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SIST EN IEC 62541-5:2020
EN IEC 62541-5:2020 (E)
Publication Year Title EN/HD Year
IETF RFC 2047 - Multipurpose Internet Mail Extensions - - -
Part Three: Message Header Extensions
for Non-ASCII Text
XML-1 - XML Schema Part 1: Structures, W3C - -
XML-2 - XML Schema Part 2: Datatypes, W3C - -
W3C Xpath - XML Path Language (XPath) - -
IETF RFC 3629 - UTF-8, a transformation format of ISO - -
10646
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SIST EN IEC 62541-5:2020
IEC 62541-5
Edition 3.0 2020-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC unified architecture –
Part 5: Information Model
Architecture unifiée OPC –
Partie 5: Modèle d'information
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8592-3

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 62541-5:2020
– 2 – IEC 62541-5:2020 © IEC 2020
CONTENTS

FOREWORD ......................................................................................................................... 14

1 Scope ............................................................................................................................ 16

2 Normative references .................................................................................................... 16

3 Terms, definitions, abbreviated terms and conventions .................................................. 17

3.1 Terms and definitions ............................................................................................ 17

3.2 Abbreviated terms ................................................................................................. 17

3.3 Conventions for Node descriptions ........................................................................ 17

4 NodeIds and BrowseNames ........................................................................................... 19

4.1 NodeIds ................................................................................................................ 19

4.2 BrowseNames ....................................................................................................... 19

5 Common Attributes ........................................................................................................ 19

5.1 General ................................................................................................................. 19

5.2 Objects ................................................................................................................. 20

5.3 Variables .............................................................................................................. 20

5.4 VariableTypes ....................................................................................................... 21

5.5 Methods ................................................................................................................ 21

6 Standard ObjectTypes ................................................................................................... 21

6.1 General ................................................................................................................. 21

6.2 BaseObjectType ................................................................................................... 22

6.3 ObjectTypes for the Server Object ........................................................................ 22

6.3.1 ServerType .................................................................................................... 22

6.3.2 ServerCapabilitiesType .................................................................................. 25

6.3.3 ServerDiagnosticsType .................................................................................. 28

6.3.4 SessionsDiagnosticsSummaryType ............................................................... 29

6.3.5 SessionDiagnosticsObjectType ...................................................................... 29

6.3.6 VendorServerInfoType ................................................................................... 30

6.3.7 ServerRedundancyType................................................................................. 30

6.3.8 TransparentRedundancyType ........................................................................ 31

6.3.9 NonTransparentRedundancyType .................................................................. 31

6.3.10 NonTransparentNetworkRedundancyType ..................................................... 32

6.3.11 OperationLimitsType ...................................................................................... 33

6.3.12 AddressSpaceFileType .................................................................................. 34

6.3.13 NamespaceMetadataType ............................................................................. 35

6.3.14 NamespacesType .......................................................................................... 36

6.4 ObjectTypes used as EventTypes ......................................................................... 37

6.4.1 General ......................................................................................................... 37

6.4.2 BaseEventType ............................................................................................. 37

6.4.3 AuditEventType ............................................................................................. 40

6.4.4 AuditSecurityEventType ................................................................................. 41

6.4.5 AuditChannelEventType ................................................................................ 42

6.4.6 AuditOpenSecureChannelEventType ............................................................. 42

6.4.7 AuditSessionEventType ................................................................................. 43

6.4.8 AuditCreateSessionEventType....................................................................... 44

6.4.9 AuditUrlMismatchEventType .......................................................................... 45

6.4.10 AuditActivateSessionEventType .................................................................... 45

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SIST EN IEC 62541-5:2020
IEC 62541-5:2020 © IEC 2020 – 3 –

6.4.11 AuditCancelEventType .................................................................................. 46

6.4.12 AuditCertificateEventType ............................................................................. 47

6.4.13 AuditCertificateDataMismatchEventType ....................................................... 47

6.4.14 AuditCertificateExpiredEventType .................................................................. 48

6.4.15 AuditCertificateInvalidEventType ................................................................... 48

6.4.16 AuditCertificateUntrustedEventType .............................................................. 48

6.4.17 AuditCertificateRevokedEventType ................................................................ 49

6.4.18 AuditCertificateMismatchEventType ............................................................... 49

6.4.19 AuditNodeManagementEventType ................................................................. 50

6.4.20 AuditAddNodesEventType ............................................................................. 50

6.4.21 AuditDeleteNodesEventType ......................................................................... 50

6.4.22 AuditAddReferencesEventType ..................................................................... 51

6.4.23 AuditDeleteReferencesEventType.................................................................. 51

6.4.24 AuditUpdateEventType .................................................................................. 52

6.4.25 AuditWriteUpdateEventType .......................................................................... 52

6.4.26 AuditHistoryUpdateEventType ....................................................................... 53

6.4.27 AuditUpdateMethodEventType ....................................................................... 54

6.4.28 SystemEventType .......................................................................................... 54

6.4.29 DeviceFailureEventType ................................................................................ 54

6.4.30 SystemStatusChangeEventType .................................................................... 55

6.4.31 BaseModelChangeEventType ........................................................................ 55

6.4.32 GeneralModelChangeEventType.................................................................... 56

6.4.33 SemanticChangeEventType ........................................................................... 56

6.4.34 EventQueueOverflowEventType .................................................................... 57

6.4.35 ProgressEventType ....................................................................................... 57

6.5 ModellingRuleType ............................................................................................... 58

6.6 FolderType ........................................................................................................... 58

6.7 DataTypeEncodingType ........................................................................................ 58

6.8 AggregateFunctionType ........................................................................................ 58

7 Standard VariableTypes ................................................................................................ 59

7.1 General ................................................................................................................. 59

7.2 BaseVariableType ................................................................................................. 59

7.3 PropertyType ........................................................................................................ 59

7.4 BaseDataVariableType ......................................................................................... 60

7.5 ServerVendorCapabilityType ................................................................................. 60

7.6 ServerStatusType ................................................................................................. 61

7.7 BuildInfoType ........................................................................................................ 61

7.8 ServerDiagnosticsSummaryType .......................................................................... 62

7.9 SamplingIntervalDiagnosticsArrayType ................................................................. 63

7.10 SamplingIntervalDiagnosticsType ......................................................................... 63

7.11 SubscriptionDiagnosticsArrayType ........................................................................ 63

7.12 SubscriptionDiagnosticsType ................................................................................ 64

7.13 SessionDiagnosticsArrayType ............................................................................... 65

7.14 SessionDiagnosticsVariableType .......................................................................... 66

7.15 SessionSecurityDiagnosticsArrayType .................................................................. 69

7.16 SessionSecurityDiagnosticsType .......................................................................... 69

7.17 OptionSetType ...................................................................................................... 70

7.18 SelectionListType ................................................................................................. 71

7.19 AudioVariableType ................................................................................................ 72

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SIST EN IEC 62541-5:2020
– 4 – IEC 62541-5:2020 © IEC 2020

8 Standard Objects and their Variables ............................................................................. 73

8.1 General ................................................................................................................. 73

8.2 Objects used to organise the AddressSpace structure .......................................... 73

8.2.1 Overview ....................................................................................................... 73

8.2.2 Root .............................................................................................................. 73

8.2.3 Views ............................................................................................................ 74

8.2.4 Objects .......................................................................................................... 74

8.2.5 Types ............................................................................................................ 75

8.2.6 ObjectTypes .................................................................................................. 75

8.2.7 VariableTypes ............................................................................................... 76

8.2.8 ReferenceTypes ............................................................................................ 77

8.2.9 DataTypes ..................................................................................................... 78

8.2.10 EventTypes ................................................................................................... 78

8.3 Server Object and its containing Objects ............................................................... 79

8.3.1 General ......................................................................................................... 79

8.3.2 Server Object ................................................................................................ 80

8.4 ModellingRule Objects .......................................................................................... 80

8.4.1 ExposesItsArray ............................................................................................ 80

8.4.2 Mandatory ..................................................................................................... 81

8.4.3 Optional ......................................................................................................... 81

8.4.4 OptionalPlaceholder ...................................................................................... 81

8.4.5 MandatoryPlaceholder ................................................................................... 82

9 Standard Methods ......................................................................................................... 82

9.1 GetMonitoredItems ............................................................................................... 82

9.2 ResendData .......................................................................................................... 83

9.3 SetSubscriptionDurable ........................................................................................ 83

9.4 RequestServerStateChange .................................................................................. 84

10 Standard Views ............................................................................................................. 85

11 Standard ReferenceTypes ............................................................................................. 85

11.1 References ........................................................................................................... 85

11.2 HierarchicalReferences ......................................................................................... 86

11.3 NonHierarchicalReferences .................................................................................. 86

11.4 HasChild ............................................................................................................... 87

11.5 Aggregates ........................................................................................................... 87

11.6 Organizes ............................................................................................................. 87

11.7 HasComponent ..................................................................................................... 87

11.8 HasOrderedComponent ........................................................................................ 88

11.9 HasProperty .......................................................................................................... 88

11.10 HasSubtype .......................................................................................................... 88

11.11 HasModellingRule ................................................................................................. 89

11.12 HasTypeDefinition................................................................................................. 89

11.13 HasEncoding ........................................................................................................ 89

11.14 HasEventSource ................................................................................................... 90

11.15 HasNotifier ............................................................................................................ 90

11.16 GeneratesEvent .................................................................................................... 90

11.17 AlwaysGeneratesEvent ......................................................................................... 91

12 Standard DataTypes ...................................................................................................... 91

12.1 Overview............................................................................................................... 91

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SIST EN IEC 62541-5:2020
IEC 62541-5:2020 © IEC 2020 – 5 –

12.2 DataTypes defined in IEC 62541‑3 ........................................................................ 91

12.3 DataTypes defined in IEC 62541‑4 ........................................................................ 98

12.4 BuildInfo ............................................................................................................... 99

12.5 RedundancySupport ............................................................................................. 99

12.6 ServerState ......................................................................................................... 100

12.7 RedundantServerDataType ................................................................................. 101

12.8 SamplingIntervalDiagnosticsDataType ................................................................ 101

12.9 ServerDiagnosticsSummaryDataType ................................................................. 102

12.10 ServerStatusDataType ........................................................................................ 102

12.11 SessionDiagnosticsDataType .............................................................................. 103

12.12 SessionSecurityDiagnosticsDataType ................................................................. 106

12.13 ServiceCounterDataType .................................................................................... 107

12.14 StatusResult ....................................................................................................... 107

12.15 SubscriptionDiagnosticsDataType ....................................................................... 107

12.16 ModelChangeStructureDataType ........................................................................ 109

12.17 SemanticChangeStructureDataType ................................................................... 110

12.18 BitFieldMaskDataType ........................................................................................ 110

12.19 NetworkGroupDataType ...................................................................................... 110

12.20 EndpointUrlListDataType .................................................................................... 111

12.21 KeyValuePair ...................................................................................................... 111

12.22 EndpointType ...................................................................................................... 112

Annex A (informative) Design decisions when modelling the server information ................. 113

A.1 Overview............................................................................................................. 113

A.2 ServerType and Server Object ............................................................................ 113

A.3 Typed complex Objects beneath the Server Object ............................................. 113

A.4 Properties versus DataVariables ......................................................................... 113

A.5 Complex Variables using complex DataTypes ..................................................... 114

A.6 Complex Variables having an array ..................................................................... 114

A.7 Redundant information ........................................................................................ 114

A.8 Usage of the BaseDataVariableType ................................................................... 115

A.9 Subtyping ........................................................................................................... 115

A.10 Extensibility mechanism ...................................................................................... 115

Annex B (normative) StateMachines .................................................................................. 116

B.1 General ............................................................................................................... 116

B.2 Examples of finite state machines ....................................................................... 116

B.2.1 Simple state machine .................................................................................. 116

B.2.2 State machine containing substates ............................................................. 117

B.3 Definition of state machine .................................................................................. 118

B.4 Representation of state machines in the AddressSpace ...................................... 118

B.4.1 Overview ..................................................................................................... 118

B.4.2 StateMachineType ....................................................................................... 119

B.4.3 StateVariableType ....................................................................................... 120

B.4.4 TransitionVariableType ................................................................................ 121

B.4.5 FiniteStateMachineType .............................................................................. 122

B.4.6 FiniteStateVariableType ...................
...

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