IEC 62541-5:2020
(Main)OPC Unified Architecture - Part 5: Information Model
OPC Unified Architecture - Part 5: Information Model
IEC 62541-5:2020 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.
This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Added Annex F on User Authentication. Describes the Role Information Model that also allows configuration of Roles.
b) Added new data types: "Union", "Decimal", "OptionSet", "DateString", "TimeString", "DurationString", NormalizedString", "DecimalString", and "AudioDataType".
c) Added Method to request a state change in a Server.
d) Added Method to set Subscription to persistent mode.
e) Added Method to request resending of data from a Subscription.
f) Added concept allowing to temporarily create a file to write to or read from a server in C.4.
g) Added new Variable type to support Selection Lists.
h) Added optional properties to FiniteStateMachineType to expose currently available states and transitions.
i) Added UrisVersion Property to ServerType. This version information can be used for session-less service invocation.
Architecture unifiée OPC - Partie 5: Modèle d'informations
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.
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IEC 62541-5 ®
Edition 3.0 2020-07
REDLINE VERSION
INTERNATIONAL
STANDARD
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OPC unified architecture –
Part 5: Information Model
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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About the IEC
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International Standards for all electrical, electronic and related technologies.
About IEC publications
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IEC 62541-5 ®
Edition 3.0 2020-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
OPC unified architecture –
Part 5: Information Model
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8656-2
– 2 – IEC 62541-5:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 15
1 Scope . 18
2 Normative references . 18
3 Terms, definitions, abbreviated terms and conventions . 19
3.1 Terms and definitions . 19
3.2 Abbreviated terms . 19
3.3 Conventions for Node descriptions . 19
4 NodeIds and BrowseNames . 21
4.1 NodeIds . 21
4.2 BrowseNames . 21
5 Common Attributes . 21
5.1 General . 21
5.2 Objects . 22
5.3 Variables . 22
5.4 VariableTypes . 23
5.5 Methods . 23
6 Standard ObjectTypes . 23
6.1 General . 23
6.2 BaseObjectType . 24
6.3 ObjectTypes for the Server Object . 24
6.3.1 ServerType . 24
6.3.2 ServerCapabilitiesType . 27
6.3.3 ServerDiagnosticsType . 30
6.3.4 SessionsDiagnosticsSummaryType . 31
6.3.5 SessionDiagnosticsObjectType . 32
6.3.6 VendorServerInfoType . 32
6.3.7 ServerRedundancyType. 33
6.3.8 TransparentRedundancyType . 33
6.3.9 NonTransparentRedundancyType . 34
6.3.10 NonTransparentNetworkRedundancyType . 34
6.3.11 OperationLimitsType . 35
6.3.12 AddressSpaceFileType . 37
6.3.13 NamespaceMetadataType . 37
6.3.14 NamespacesType . 39
6.4 ObjectTypes used as EventTypes . 40
6.4.1 General . 40
6.4.2 BaseEventType . 40
6.4.3 AuditEventType . 42
6.4.4 AuditSecurityEventType . 43
6.4.5 AuditChannelEventType . 44
6.4.6 AuditOpenSecureChannelEventType . 44
6.4.7 AuditSessionEventType . 45
6.4.8 AuditCreateSessionEventType. 46
6.4.9 AuditUrlMismatchEventType . 47
6.4.10 AuditActivateSessionEventType . 47
6.4.11 AuditCancelEventType . 48
6.4.12 AuditCertificateEventType . 49
6.4.13 AuditCertificateDataMismatchEventType . 49
6.4.14 AuditCertificateExpiredEventType . 50
6.4.15 AuditCertificateInvalidEventType . 50
6.4.16 AuditCertificateUntrustedEventType . 50
6.4.17 AuditCertificateRevokedEventType . 51
6.4.18 AuditCertificateMismatchEventType . 51
6.4.19 AuditNodeManagementEventType . 52
6.4.20 AuditAddNodesEventType . 52
6.4.21 AuditDeleteNodesEventType . 52
6.4.22 AuditAddReferencesEventType . 53
6.4.23 AuditDeleteReferencesEventType. 53
6.4.24 AuditUpdateEventType . 54
6.4.25 AuditWriteUpdateEventType . 54
6.4.26 AuditHistoryUpdateEventType . 55
6.4.27 AuditUpdateMethodEventType . 56
6.4.28 SystemEventType . 56
6.4.29 DeviceFailureEventType . 56
6.4.30 SystemStatusChangeEventType . 57
6.4.31 BaseModelChangeEventType . 57
6.4.32 GeneralModelChangeEventType. 58
6.4.33 SemanticChangeEventType . 58
6.4.34 EventQueueOverflowEventType . 59
6.4.35 ProgressEventType . 59
6.5 ModellingRuleType . 60
6.6 FolderType . 60
6.7 DataTypeEncodingType . 60
6.8 DataTypeSystemType .
6.8 AggregateFunctionType . 61
7 Standard VariableTypes . 61
7.1 General . 61
7.2 BaseVariableType . 61
7.3 PropertyType . 62
7.4 BaseDataVariableType . 62
7.5 ServerVendorCapabilityType . 63
7.6 DataTypeDictionaryType .
7.7 DataTypeDescriptionType .
7.6 ServerStatusType . 64
7.7 BuildInfoType . 65
7.8 ServerDiagnosticsSummaryType . 65
7.9 SamplingIntervalDiagnosticsArrayType . 66
7.10 SamplingIntervalDiagnosticsType . 67
7.11 SubscriptionDiagnosticsArrayType . 67
7.12 SubscriptionDiagnosticsType . 67
7.13 SessionDiagnosticsArrayType . 68
7.14 SessionDiagnosticsVariableType . 69
7.15 SessionSecurityDiagnosticsArrayType . 72
7.16 SessionSecurityDiagnosticsType . 72
7.17 OptionSetType . 73
– 4 – IEC 62541-5:2020 RLV © IEC 2020
7.18 SelectionListType . 74
7.19 AudioVariableType . 75
8 Standard Objects and their Variables .
...
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
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IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
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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
– 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
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 .
...
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