EN 62541-5:2011

SLOVENSKI STANDARD
01-februar-2012
Poenotena arhitektura OPC - 5. del: Informacijski model (IEC 62541-5:2011)
OPC unified architecture - Part 5: Information model (IEC 62541-5:2011)
OPC Unified Architecture - Teil 5: Informationsmodell (IEC 62541-5:2011)
Architecture unifiée OPC - Partie 5: Modèle d'information (CEI 62541-5:2011)
Ta slovenski standard je istoveten z: EN 62541-5:2011
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 62541-5
NORME EUROPÉENNE
December 2011
EUROPÄISCHE NORM
ICS 25.040.40; 25.100.01
English version
OPC unified architecture -
Part 5: Information model
(IEC 62541-5:2011)
Architecture unifiée OPC - OPC Unified Architecture -
Partie 5: Modèle d'information Teil 5: Informationsmodell
(CEI 62541-5:2011) (IEC 62541-5:2011)

This European Standard was approved by CENELEC on 2011-11-22. 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 62541-5:2011 E
Foreword
The text of document 65E/192/FDIS, future edition 1 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
The following dates are fixed:
(dop) 2012-08-22
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2014-11-22

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 62541-5:2011 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 62541-4 NOTE  Harmonized as EN 62541-4.
IEC 62541-6 NOTE  Harmonized as EN 62541-6.

- 3 - EN 62541-5:2011
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 - OPC unified architecture - CLC/TR 62541-1 -
Part 1: Overview and concepts
IEC 62541-3 - OPC unified architecture - EN 62541-3 -
Part 3: Address space model
IEC 62541-5 ®
Edition 1.0 2011-10
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
PRICE CODE
INTERNATIONALE
CODE PRIX XE
ICS 25.040.40; 25.100.01 ISBN 978-2-88912-729-0

– 2 – 62541-5 © IEC:2011
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
2 Normative references . 13
3 Terms, definitions, abbreviations and conventions . 13
3.1 Terms and definitions . 13
3.2 Abbreviations . 13
3.3 Conventions for Node descriptions . 13
4 NodeIds and BrowseNames . 15
4.1 NodeIds . 15
4.2 BrowseNames . 15
5 Common Attributes . 16
5.1 General . 16
5.2 Objects . 16
5.3 Variables . 16
5.4 VariableTypes . 16
6 Standard ObjectTypes . 17
6.1 General . 17
6.2 BaseObjectType . 17
6.3 ObjectTypes for the server object . 17
6.3.1 ServerType . 17
6.3.2 ServerCapabilitiesType . 19
6.3.3 ServerDiagnosticsType . 20
6.3.4 SessionsDiagnosticsSummaryType . 21
6.3.5 SessionDiagnosticsObjectType . 22
6.3.6 VendorServerInfoType . 22
6.3.7 ServerRedundancyType . 22
6.3.8 TransparentRedundancyType . 23
6.3.9 NonTransparentRedundancyType . 23
6.4 ObjectTypes used as EventTypes . 24
6.4.1 General . 24
6.4.2 BaseEventType . 24
6.4.3 AuditEventType . 26
6.4.4 AuditSecurityEventType . 27
6.4.5 AuditChannelEventType . 27
6.4.6 AuditOpenSecureChannelEventType . 28
6.4.7 AuditSessionEventType . 28
6.4.8 AuditCreateSessionEventType . 29
6.4.9 AuditUrlMismatchEventType . 30
6.4.10 AuditActivateSessionEventType . 30
6.4.11 AuditCancelEventType . 30
6.4.12 AuditCertificateEventType . 31
6.4.13 AuditCertificateDataMismatchEventType . 31
6.4.14 AuditCertificateExpiredEventType. 32

62541-5 © IEC:2011 – 3 –
6.4.15 AuditCertificateInvalidEventType . 32
6.4.16 AuditCertificateUntrustedEventType . 32
6.4.17 AuditCertificateRevokedEventType . 33
6.4.18 AuditCertificateMismatchEventType. 33
6.4.19 AuditNodeManagementEventType . 33
6.4.20 AuditAddNodesEventType . 34
6.4.21 AuditDeleteNodesEventType . 34
6.4.22 AuditAddReferencesEventType . 34
6.4.23 AuditDeleteReferencesEventType . 35
6.4.24 AuditUpdateEventType . 35
6.4.25 AuditWriteUpdateEventType . 36
6.4.26 AuditHistoryUpdateEventType . 36
6.4.27 AuditUpdateMethodEventType. 37
6.4.28 SystemEventType . 37
6.4.29 DeviceFailureEventType . 37
6.4.30 BaseModelChangeEventType . 38
6.4.31 GeneralModelChangeEventType . 38
6.4.32 SemanticChangeEventType . 38
6.4.33 EventQueueOverflowEventType . 39
6.5 ModellingRuleType . 39
6.6 FolderType . 39
6.7 DataTypeEncodingType . 40
6.8 DataTypeSystemType . 40
6.9 AggregateFunctionType . 40
7 Standard VariableTypes . 41
7.1 General . 41
7.2 BaseVariableType . 41
7.3 PropertyType . 41
7.4 BaseDataVariableType . 41
7.5 ServerVendorCapabilityType . 42
7.6 DataTypeDictionaryType . 42
7.7 DataTypeDescriptionType . 43
7.8 ServerStatusType . 43
7.9 BuildInfoType . 43
7.10 ServerDiagnosticsSummaryType . 44
7.11 SamplingIntervalDiagnosticsArrayType . 44
7.12 SamplingIntervalDiagnosticsType . 45
7.13 SubscriptionDiagnosticsArrayType . 45
7.14 SubscriptionDiagnosticsType . 45
7.15 SessionDiagnosticsArrayType . 46
7.16 SessionDiagnosticsVariableType . 47
7.17 SessionSecurityDiagnosticsArrayType. 49
7.18 SessionSecurityDiagnosticsType . 49
8 Standard Objects and their Variables . 50
8.1 General . 50
8.2 Objects used to organise the AddressSpace structure . 50
8.2.1 Overview . 50
8.2.2 Root . 51
8.2.3 Views . 51

– 4 – 62541-5 © IEC:2011
8.2.4 Objects . 52
8.2.5 Types . 52
8.2.6 ObjectTypes . 53
8.2.7 VariableTypes . 53
8.2.8 ReferenceTypes . 54
8.2.9 DataTypes . 55
8.2.10 OPC Binary . 56
8.2.11 XML Schema . 57
8.2.12 EventTypes . 57
8.3 Server Object and its containing Objects . 58
8.3.1 General . 58
8.3.2 Server Object . 59
8.4 ModellingRule Objects . 60
8.4.1 ExposesItsArray . 60
8.4.2 Mandatory . 60
8.4.3 Optional . 60
9 Standard Methods . 61
10 Standard Views . 61
11 Standard ReferenceTypes . 61
11.1 References . 61
11.2 HierarchicalReferences . 61
11.3 NonHierarchicalReferences . 61
11.4 HasChild . 62
11.5 Aggregates . 62
11.6 Organizes . 62
11.7 HasComponent. 63
11.8 HasOrderedComponent . 63
11.9 HasProperty . 63
11.10 HasSubtype . 63
11.11 HasModellingRule . 64
11.12 HasTypeDefinition . 64
11.13 HasEncoding . 64
11.14 HasDescription . 64
11.15 HasEventSource . 65
11.16 HasNotifier . 65
11.17 GeneratesEvent . 65
11.18 AlwaysGeneratesEvent . 65
11.19 HasModelParent . 66
12 Standard DataTypes . 66
12.1 Overview . 66
12.2 DataTypes defined in Part 3 . 66
12.3 DataTypes defined in Part 4 . 70
12.4 BuildInfo . 71
12.5 RedundancySupport . 72
12.6 ServerState . 72
12.7 RedundantServerDataType . 73
12.8 SamplingIntervalDiagnosticsDataType. 73
12.9 ServerDiagnosticsSummaryDataType . 74

62541-5 © IEC:2011 – 5 –
12.10 ServerStatusDataType . 75
12.11 SessionDiagnosticsDataType . 75
12.12 SessionSecurityDiagnosticsDataType. 76
12.13 ServiceCounterDataType. 77
12.14 StatusResult . 77
12.15 SubscriptionDiagnosticsDataType . 78
12.16 ModelChangeStructureDataType . 79
12.17 SemanticChangeStructureDataType . 80
Annex A (informative) Design decisions when modelling the server information . 81
Annex B (normative) StateMachines . 84
Bibliography . 103

Figure 1 – Standard AddressSpace Structure . 50
Figure 2 – Views Organization . 51
Figure 3 – Objects Organization . 52
Figure 4 – ObjectTypes Organization . 53
Figure 5 – VariableTypes Organization . 54
Figure 6 – ReferenceType Definitions . 55
Figure 7 – DataTypes Organization . 56
Figure 8 – EventTypes Organization . 57
Figure 9 – Excerpt of Diagnostic Information of the Server . 59
Figure B.1 – Example of a simple state machine . 85
Figure B.2 – Example of a state machine having a sub-machine . 85
Figure B.3 – The StateMachine Information Model . 87
Figure B.4 – Example of an initial State in a sub-machine . 92
Figure B.5 – Example of a StateMachineType using inheritance . 98
Figure B.6 – Example of a StateMachineType with a SubStateMachine using
inheritance . 99
Figure B.7 – Example of a StateMachineType using containment. 100
Figure B.8 – Example of a state machine with transitions from sub-states . 101
Figure B.9 – Example of a StateMachineType having Transitions to SubStateMachines . 102

Table 1 – Examples of DataTypes . 14
Table 2 – Type Definition Table . 15
Table 3 – Common Node Attributes . 16
Table 4 – Common Object Attributes . 16
Table 5 – Common Variable Attributes . 16
Table 6 – Common VariableType Attributes . 17
Table 7 – BaseObjectType Definition . 17
Table 8 – ServerType Definition . 18
Table 9 – ServerCapabilitiesType Definition . 19
Table 10 – ServerDiagnosticsType Definition . 20
Table 11 – SessionsDiagnosticsSummaryType Definition . 21
Table 12 – SessionDiagnosticsObjectType Definition . 22

– 6 – 62541-5 © IEC:2011
Table 13 – VendorServerInfoType Definition . 22
Table 14 – ServerRedundancyType Definition . 23
Table 15 – TransparentRedundancyType Definition . 23
Table 16 – NonTransparentRedundancyType Definition . 23
Table 17 – BaseEventType Definition . 24
Table 18 – AuditEventType Definition . 26
Table 19 – AuditSecurityEventType Definition . 27
Table 20 – AuditChannelEventType Definition . 27
Table 21 – AuditOpenSecureChannelEventType Definition . 28
Table 22 – AuditSessionEventType Definition . 29
Table 23 – AuditCreateSessionEventType Definition . 29
Table 24 – AuditUrlMismatchEventType Definition . 30
Table 25 – AuditActivateSessionEventType Definition. 30
Table 26 – AuditCancelEventType Definition . 31
Table 27 – AuditCertificateEventType Definition . 31
Table 28 – AuditCertificateDataMismatchEventType Definition . 31
Table 29 – AuditCertificateExpiredEventType Definition . 32
Table 30 – AuditCertificateInvalidEventType Definition . 32
Table 31 – AuditCertificateUntrustedEventType Definition . 32
Table 32 – AuditCertificateRevokedEventType Definition . 33
Table 33 – AuditCertificateMismatchEventType Definition . 33
Table 34 – AuditNodeManagementEventType Definition . 33
Table 35 – AuditAddNodesEventType Definition . 34
Table 36 – AuditDeleteNodesEventType Definition . 34
Table 37 – AuditAddReferencesEventType Definition. 35
Table 38 – AuditDeleteReferencesEventType Definition . 35
Table 39 – AuditUpdateEventType Definition . 35
Table 40 – AuditWriteUpdateEventType Definition . 36
Table 41 – AuditHistoryUpdateEventType Definition . 36
Table 42 – AuditUpdateMethodEventType Definition . 37
Table 43 – SystemEventType Definition . 37
Table 44 – DeviceFailureEventType Definition . 38
Table 45 – BaseModelChangeEventType Definition . 38
Table 46 – GeneralModelChangeEventType Definition. 38
Table 47 – SemanticChangeEventType Definition . 39
Table 48 – EventQueueEventType Definition . 39
Table 49 – ModellingRuleType Definition . 39
Table 50 – FolderType Definition . 40
Table 51 – DataTypeEncodingType Definition . 40
Table 52 – DataTypeSystemType Definition . 40
Table 53 – AggregateFunctionType Definition . 40
Table 54 – BaseVariableType Definition . 41
Table 55 – PropertyType Definition . 41

62541-5 © IEC:2011 – 7 –
Table 56 – BaseDataVariableType Definition . 42
Table 57 – ServerVendorCapabilityType Definition . 42
Table 58 – DataTypeDictionaryType Definition . 42
Table 59 – DataTypeDescriptionType Definition . 43
Table 60 – ServerStatusType Definition . 43
Table 61 – BuildInfoType Definition . 44
Table 62 – ServerDiagnosticsSummaryType Definition . 44
Table 63 – SamplingIntervalDiagnosticsArrayType Definition . 45
Table 64 – SamplingIntervalDiagnosticsType Definition . 45
Table 65 – SubscriptionDiagnosticsArrayType Definition . 45
Table 66 – SubscriptionDiagnosticsType Definition . 46
Table 67 – SessionDiagnosticsArrayType Definition . 46
Table 68 – SessionDiagnosticsVariableType Definition . 48
Table 69 – SessionSecurityDiagnosticsArrayType Definition . 49
Table 70 – SessionSecurityDiagnosticsType Definition . 50
Table 71 – Root Definition . 51
Table 72 – Views Definition . 51
Table 73 – Objects Definition . 52
Table 74 – Types Definition . 52
Table 75 – ObjectTypes Definition . 53
Table 76 – VariableTypes Definition. 54
Table 77 – ReferenceTypes Definition . 55
Table 78 – DataTypes Definition . 56
Table 79 – OPC Binary Definition . 57
Table 80 – XML Schema Definition . 57
Table 81 – EventTypes Definition . 58
Table 82 – Server Definition . 60
Table 83 – ExposesItsArray Definition . 60
Table 84 – Mandatory Definition . 60
Table 85 – Optional Definition . 60
Table 86 – References ReferenceType . 61
Table 87 – HierarchicalReferences ReferenceType . 61
Table 88 – NonHierarchicalReferences ReferenceType . 62
Table 89 – HasChild ReferenceType . 62
Table 90 – Aggregates ReferenceType . 62
Table 91 – Organizes ReferenceType . 62
Table 92 – HasComponent ReferenceType . 63
Table 93 – HasOrderedComponent ReferenceType . 63
Table 94 – HasProperty ReferenceType. 63
Table 95 – HasSubtype ReferenceType . 63
Table 96 – HasModellingRule ReferenceType . 64
Table 97 – HasTypeDefinition ReferenceType . 64
Table 98 – HasEncoding ReferenceType . 64

– 8 – 62541-5 © IEC:2011
Table 99 – HasDescription ReferenceType . 64
Table 100 – HasEventSource ReferenceType . 65
Table 101 – HasNotifier ReferenceType . 65
Table 102 – GeneratesEvent ReferenceType . 65
Table 103 – AlwaysGeneratesEvent ReferenceType . 65
Table 104 – HasModelParent ReferenceType . 66
Table 105 – Part 3 DataType Definitions . 67
Table 106 – BaseDataType Definition . 68
Table 107 – Structure Definition . 68
Table 108 – Enumeration Definition . 69
Table 109 – ByteString Definition . 69
Table 110 – Number Definition . 69
Table 111 – Double Definition . 69
Table 112 – Integer Definition . 69
Table 113 – DateTime Definition . 70
Table 114 – String Definition . 70
Table 115 – UInteger Definition . 70
Table 116 – Image Definition . 70
Table 117 – Part 4 DataType Definitions . 71
Table 118 – UserIdentityToken Definition . 71
Table 119 – BuildInfo Structure . 72
Table 120 – BuildInfo Definition . 72
Table 121 – RedundancySupport Values . 72
Table 122 – RedundancySupport Definition . 72
Table 123 – ServerState Values . 73
Table 124 – ServerState Definition . 73
Table 125 – RedundantServerDataType Structure . 73
Table 126 – RedundantServerDataType Definition . 73
Table 127 – SamplingIntervalDiagnosticsDataType Structure . 74
Table 128 – SamplingIntervalDiagnosticsDataType Definition . 74
Table 129 – ServerDiagnosticsSummaryDataType Structure. 74
Table 130 – ServerDiagnosticsSummaryDataType Definition . 74
Table 131 – ServerStatusDataType Structure . 75
Table 132 – ServerStatusDataType Definition . 75
Table 133 – SessionDiagnosticsDataType Structure . 75
Table 134 – SessionDiagnosticsDataType Definition . 76
Table 135 – SessionSecurityDiagnosticsDataType Structure . 77
Table 136 – SessionSecurityDiagnosticsDataType Definition . 77
Table 137 – ServiceCounterDataType Structure . 77
Table 138 – ServiceCounterDataType Definition . 77
Table 139 – StatusResult Structure. 78
Table 140 – StatusResult Definition . 78
Table 141 – SubscriptionDiagnosticsDataType Structure . 79

62541-5 © IEC:2011 – 9 –
Table 142 – SubscriptionDiagnosticsDataType Definition . 79
Table 143 – ModelChangeStructureDataType Structure . 80
Table 144 – ModelChangeStructureDataType Definition . 80
Table 145 – SemanticChangeStructureDataType Structure . 80
Table 146 – SemanticChangeStructureDataType Definition . 80
Table B.1 – StateMachineType Definition. 88
Table B.2 – StateVariableType Definition . 88
Table B.3 – TransitionVariableType Definition. 89
Table B.4 – FiniteStateMachineType Definition . 90
Table B.5 – FiniteStateVariableType Definition . 91
Table B.6 – FiniteTransitionVariableType Definition . 91
Table B.7 – StateType Definition .
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