EN 62541-5:2015

SLOVENSKI STANDARD
01-oktober-2015
1DGRPHãþD
SIST EN 62541-5:2012
Enotna arhitektura OPC - 5. del: Informacijski model (IEC 62541-5:2015)
OPC Unified Architecture -- Part 5: Information Model (IEC 62541-5:2015)
OPC unified architecture - Part 5: Information Model (IEC 62541-5:2015)
Architecture unifiée OPC - Partie 5: Modèle d'informations (IEC 62541-5:2015)
Ta slovenski standard je istoveten z: EN 62541-5:2015
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
EUROPÄISCHE NORM
May 2015
ICS 25.040.40; 35.100 Supersedes EN 62541-5:2011
English Version
OPC unified architecture - Part 5: Information Model
(IEC 62541-5:2015)
Architecture unifiée OPC - Partie 5: Modèle d'informations OPC Unified Architecture - Teil 5: Informationsmodell
(IEC 62541-5:2015) (IEC 62541-5:2015)
This European Standard was approved by CENELEC on 2015-04-29. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62541-5:2015 E
Foreword
The text of document 65E/376/CDV, future edition 2 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:
• latest date by which the document has to be implemented at (dop) 2016-01-29
national level by publication of an identical national
standard or by endorsement
(dow) 2018-04-29
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 62541-5:2011.
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.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
Endorsement notice
The text of the International Standard IEC 62541-5:2015 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 62541-5:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 - CLC/TR 62541-1 -
Part 1: Overview and concepts
IEC 62541-3 -  OPC unified architecture - EN 62541-3 -
Part 3: Address Space Model
IEC 62541-4 -  OPC Unified Architecture - EN 62541-4 -
Part 4: Services
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 62541-9 -  OPC unified architecture - EN 62541-9 -
Part 9: Alarms and conditions
IEC 62541-10 -  OPC Unified Architecture - EN 62541-10 -
Part 10: Programs
IEC 62541-11 -  OPC unified architecture - EN 62541-11 -
Part 11: Historical Access
IEC 62541-5 ®
Edition 2.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC unified architecture –
Part 5: Information Model
Architecture unifiée OPC –
Partie 5: Modèle d'informations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100 ISBN 978-2-8322-2384-0

– 2 – IEC 62541-5:2015 © IEC 2015
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and conventions . 14
3.1 Terms and definitions . 14
3.2 Abbreviations and symbols . 14
3.3 Conventions for Node descriptions . 15
4 NodeIds and BrowseNames . 16
4.1 NodeIds . 16
4.2 BrowseNames . 16
5 Common Attributes . 17
5.1 General . 17
5.2 Objects . 17
5.3 Variables . 17
5.4 VariableTypes . 17
6 Standard ObjectTypes . 18
6.1 General . 18
6.2 BaseObjectType . 18
6.3 ObjectTypes for the Server Object . 18
6.3.1 ServerType . 18
6.3.2 ServerCapabilitiesType . 20
6.3.3 ServerDiagnosticsType . 22
6.3.4 SessionsDiagnosticsSummaryType . 23
6.3.5 SessionDiagnosticsObjectType . 24
6.3.6 VendorServerInfoType . 25
6.3.7 ServerRedundancyType . 25
6.3.8 TransparentRedundancyType . 25
6.3.9 NonTransparentRedundancyType . 26
6.3.10 NonTransparentNetworkRedundancyType . 26
6.3.11 OperationLimitsType . 27
6.3.12 AddressSpaceFileType . 29
6.3.13 NamespaceMetadataType. 29
6.3.14 NamespacesType . 31
6.4 ObjectTypes used as EventTypes . 31
6.4.1 General. 31
6.4.2 BaseEventType. 31
6.4.3 AuditEventType . 33
6.4.4 AuditSecurityEventType . 34
6.4.5 AuditChannelEventType . 35
6.4.6 AuditOpenSecureChannelEventType . 35
6.4.7 AuditSessionEventType . 36
6.4.8 AuditCreateSessionEventType . 36
6.4.9 AuditUrlMismatchEventType . 37
6.4.10 AuditActivateSessionEventType . 38
6.4.11 AuditCancelEventType . 38
6.4.12 AuditCertificateEventType . 39

IEC 62541-5:2015 © IEC 2015 – 3 –
6.4.13 AuditCertificateDataMismatchEventType . 39
6.4.14 AuditCertificateExpiredEventType . 39
6.4.15 AuditCertificateInvalidEventType . 40
6.4.16 AuditCertificateUntrustedEventType. 40
6.4.17 AuditCertificateRevokedEventType . 40
6.4.18 AuditCertificateMismatchEventType . 41
6.4.19 AuditNodeManagementEventType . 41
6.4.20 AuditAddNodesEventType . 42
6.4.21 AuditDeleteNodesEventType . 42
6.4.22 AuditAddReferencesEventType . 42
6.4.23 AuditDeleteReferencesEventType . 43
6.4.24 AuditUpdateEventType . 43
6.4.25 AuditWriteUpdateEventType . 44
6.4.26 AuditHistoryUpdateEventType . 44
6.4.27 AuditUpdateMethodEventType . 45
6.4.28 SystemEventType . 45
6.4.29 DeviceFailureEventType . 45
6.4.30 SystemStatusChangeEventType . 46
6.4.31 BaseModelChangeEventType . 46
6.4.32 GeneralModelChangeEventType . 46
6.4.33 SemanticChangeEventType . 47
6.4.34 EventQueueOverflowEventType . 47
6.4.35 ProgressEventType . 48
6.5 ModellingRuleType . 48
6.6 FolderType . 48
6.7 DataTypeEncodingType . 49
6.8 DataTypeSystemType . 49
6.9 AggregateFunctionType . 49
7 Standard VariableTypes . 50
7.1 General . 50
7.2 BaseVariableType . 50
7.3 PropertyType . 50
7.4 BaseDataVariableType . 50
7.5 ServerVendorCapabilityType . 51
7.6 DataTypeDictionaryType . 51
7.7 DataTypeDescriptionType . 52
7.8 ServerStatusType . 52
7.9 BuildInfoType . 52
7.10 ServerDiagnosticsSummaryType . 53
7.11 SamplingIntervalDiagnosticsArrayType . 53
7.12 SamplingIntervalDiagnosticsType . 54
7.13 SubscriptionDiagnosticsArrayType . 54
7.14 SubscriptionDiagnosticsType . 54
7.15 SessionDiagnosticsArrayType . 55
7.16 SessionDiagnosticsVariableType . 56
7.17 SessionSecurityDiagnosticsArrayType . 57
7.18 SessionSecurityDiagnosticsType . 58
7.19 OptionSetType . 58
8 Standard Objects and their Variables . 59

– 4 – IEC 62541-5:2015 © IEC 2015
8.1 General . 59
8.2 Objects used to organise the AddressSpace structure . 59
8.2.1 Overview . 59
8.2.2 Root . 60
8.2.3 Views . 60
8.2.4 Objects . 61
8.2.5 Types . 61
8.2.6 ObjectTypes . 62
8.2.7 VariableTypes . 63
8.2.8 ReferenceTypes. 64
8.2.9 DataTypes . 64
8.2.10 OPC Binary . 66
8.2.11 XML Schema . 66
8.2.12 EventTypes . 66
8.3 Server Object and its containing Objects . 67
8.3.1 General. 67
8.3.2 Server Object . 68
8.4 ModellingRule Objects . 69
8.4.1 ExposesItsArray . 69
8.4.2 Mandatory. 69
8.4.3 Optional . 69
8.4.4 OptionalPlaceholder. 70
8.4.5 MandatoryPlaceholder . 70
9 Standard Methods . 70
9.1 GetMonitoredItems . 70
10 Standard Views . 71
11 Standard ReferenceTypes . 71
11.1 References . 71
11.2 HierarchicalReferences . 71
11.3 NonHierarchicalReferences . 71
11.4 HasChild . 72
11.5 Aggregates . 72
11.6 Organizes . 72
11.7 HasComponent . 73
11.8 HasOrderedComponent . 73
11.9 HasProperty . 73
11.10 HasSubtype . 73
11.11 HasModellingRule . 74
11.12 HasTypeDefinition. 74
11.13 HasEncoding . 74
11.14 HasDescription . 75
11.15 HasEventSource . 75
11.16 HasNotifier . 75
11.17 GeneratesEvent . 75
11.18 AlwaysGeneratesEvent . 76
12 Standard DataTypes . 76
12.1 Overview. 76
12.2 DataTypes defined in IEC 62541-3 . 76

IEC 62541-5:2015 © IEC 2015 – 5 –
12.3 DataTypes defined in IEC 62541-4 . 81
12.4 BuildInfo . 82
12.5 RedundancySupport . 82
12.6 ServerState . 83
12.7 RedundantServerDataType . 83
12.8 SamplingIntervalDiagnosticsDataType . 84
12.9 ServerDiagnosticsSummaryDataType . 84
12.10 ServerStatusDataType . 85
12.11 SessionDiagnosticsDataType . 86
12.12 SessionSecurityDiagnosticsDataType . 87
12.13 ServiceCounterDataType . 88
12.14 StatusResult . 88
12.15 SubscriptionDiagnosticsDataType . 89
12.16 ModelChangeStructureDataType . 90
12.17 SemanticChangeStructureDataType . 90
12.18 BitFieldMaskDataType . 91
12.19 NetworkGroupDataType . 91
12.20 EndpointUrlListDataType . 92
Annex A (informative) Design decisions when modelling the server information . 93
A.1 Overview. 93
A.2 ServerType and Server Object . 93
A.3 Typed complex Objects beneath the Server Object . 93
A.4 Properties versus DataVariables . 93
A.5 Complex Variables using complex DataTypes . 94
A.6 Complex Variables having an array . 94
A.7 Redundant information . 94
A.8 Usage of the BaseDataVariableType . 95
A.9 Subtyping . 95
A.10 Extensibility mechanism . 95
Annex B (normative) StateMachines . 96
B.1 General . 96
B.2 Examples of finite state machines . 96
B.2.1 Simple state machine . 96
B.2.2 State machine containing substates . 97
B.3 Definition of state machine . 98
B.4 Representation of state machines in the AddressSpace . 98
B.4.1 Overview . 98
B.4.2 StateMachineType . 99
B.4.3 StateVariableType . 100
B.4.4 TransitionVariableType . 101
B.4.5 FiniteStateMachineType . 101
B.4.6 FiniteStateVariableType . 102
B.4.7 FiniteTransitionVariableType . 103
B.4.8 StateType . 103
B.4.9 InitialStateType . 104
B.4.10 TransitionType . 105
B.4.11 FromState . 105
B.4.12 ToState . 106
B.4.13 HasCause . 106

– 6 – IEC 62541-5:2015 © IEC 2015
B.4.14 HasEffect . 106
B.4.15 HasSubStateMachine. 107
B.4.16 TransitionEventType . 107
B.4.17 AuditUpdateStateEventType . 108
B.4.18 Special Restrictions on subtyping StateMachines . 108
B.4.19 Specific StatusCodes for StateMachines . 109
B.5 Examples of StateMachines in the AddressSpace . 110
B.5.1 StateMachineType using inheritance . 110
B.5.2 StateMachineType with a sub-machine using inheritance . 111
B.5.3 StateMachineType using containment . 112
B.5.4 Example of a StateMachine having Transition to SubStateMachine . 113
Annex C (normative) File Transfer . 115
C.1 Overview. 115
C.2 FileType . 115
C.3 Open . 116
C.4 Close . 117
C.5 Read . 117
C.6 Write . 118
C.7 GetPosition . 118
C.8 SetPosition . 119

Figure 1 – Standard AddressSpace Structure . 59
Figure 2 – Views Organization . 60
Figure 3 – Objects Organization . 61
Figure 4 – ObjectTypes Organization . 62
Figure 5 – VariableTypes Organization . 63
Figure 6 – ReferenceType Definitions . 64
Figure 7 – DataTypes Organization . 65
Figure 8 – EventTypes Organization . 67
Figure 9 – Excerpt of Diagnostic Information of the Server . 68
Figure B.1 – Example of a simple state machine . 97
Figure B.2 – Example of a state machine having a sub-machine . 97
Figure B.3 – The StateMachine Information Model . 99
Figure B.4 – Example of an initial State in a sub-machine . 104
Figure B.5 – Example of a StateMachineType using inheritance . 110
Figure B.6 – Example of a StateMachineType with a SubStateMachine using
inheritance . 111
Figure B.7 – Example of a StateMachineType using containment . 112
Figure B.8 – Example of a state machine with transitions from sub-states . 113
Figure B.9 – Example of a StateMachineType having Transition to SubStateMachine . 114

Table 1 – Examples of DataTypes . 15
Table 2 – Type Definition Table . 16
Table 3 – Common Node Attributes . 17
Table 4 – Common Object Attributes . 17
Table 5 – Common Variable Attributes . 17

IEC 62541-5:2015 © IEC 2015 – 7 –
Table 6 – Common VariableType Attributes . 18
Table 7 – BaseObjectType Definition . 18
Table 8 – ServerType Definition . 19
Table 9 – ServerCapabilitiesType Definition . 21
Table 10 – ServerDiagnosticsType Definition . 23
Table 11 – SessionsDiagnosticsSummaryType Definition . 24
Table 12 – SessionDiagnosticsObjectType Definition . 24
Table 13 – VendorServerInfoType Definition . 25
Table 14 – ServerRedundancyType Definition . 25
Table 15 – TransparentRedundancyType Definition . 25
Table 16 – NonTransparentRedundancyType Definition . 26
Table 17 – NonTransparentNetworkRedundancyType Definition . 27
Table 18 – OperationLimitsType Definition . 28
Table 19 – AddressSpaceFileType Definition . 29
Table 20 – NamespaceMetadataType Definition . 30
Table 21 – NamespacesType Definition . 31
Table 22 – BaseEventType Definition . 31
Table 23 – AuditEventType Definition . 34
Table 24 – AuditSecurityEventType Definition . 34
Table 25 – AuditChannelEventType Definition . 35
Table 26 – AuditOpenSecureChannelEventType Definition . 35
Table 27 – AuditSessionEventType Definition . 36
Table 28 – AuditCreateSessionEventType Definition . 37
Table 29 – AuditUrlMismatchEventType Definition . 37
Table 30 – AuditActivateSessionEventType Definition . 38
Table 31 – AuditCancelEventType Definition. 38
Table 32 – AuditCertificateEventType Definition . 39
Table 33 – AuditCertificateDataMismatchEventType Definition . 39
Table 34 – AuditCertificateExpiredEventType Definition . 40
Table 35 – AuditCertificateInvalidEventType Definition . 40
Table 36 – AuditCertificateUntrustedEventType Definition . 40
Table 37 – AuditCertificateRevokedEventType Definition . 41
Table 38 – AuditCertificateMismatchEventType Definition . 41
Table 39 – AuditNodeManagementEventType Definition . 41
Table 40 – AuditAddNodesEventType Definition . 42
Table 41 – AuditDeleteNodesEventType Definition . 42
Table 42 – AuditAddReferencesEventType Definition . 43
Table 43 – AuditDeleteReferencesEventType Definition . 43
Table 44 – AuditUpdateEventType Definition . 43
Table 45 – AuditWriteUpdateEventType Definition . 44
Table 46 – AuditHistoryUpdateEventType Definition . 44
Table 47 – AuditUpdateMethodEventType Definition . 45
Table 48 – SystemEventType Definition . 45

– 8 – IEC 62541-5:2015 © IEC 2015
Table 49 – DeviceFailureEventType Definition . 46
Table 50 – SystemStatusChangeEventType Definition . 46
Table 51 – BaseModelChangeEventType Definition . 46
Table 52 – GeneralModelChangeEventType Definition . 47
Table 53 – SemanticChangeEventType Definition . 47
Table 54 – EventQueueOverflowEventType Definition . 47
Table 55 – ProgressEventType Definition . 48
Table 56 – ModellingRuleType Definition . 48
Table 57 – FolderType Definition . 49
Table 58 – DataTypeEncodingType Definition . 49
Table 59 – DataTypeSystemType Definition . 49
Table 60 – AggregateFunctionType Definition . 49
Table 61 – BaseVariableType Definition . 50
Table 62 – PropertyType Definition . 50
Table 63 – BaseDataVariableType Definition . 51
Table 64 – ServerVendorCapabilityType Definition . 51
Table 65 – DataTypeDictionaryType Definition . 51
Table 66 – DataTypeDescriptionType Definition . 52
Table 67 – ServerStatusType Definition . 52
Table 68 – BuildInfoType Definition . 53
Table 69 – ServerDiagnosticsSummaryType Definition . 53
Table 70 – SamplingIntervalDiagnosticsArrayType Definition . 54
Table 71 – SamplingIntervalDiagnosticsType Definition . 54
Table 72 – SubscriptionDiagnosticsArrayType Definition . 54
Table 73 – SubscriptionDiagnosticsType Definition . 55
Table 74 – SessionDiagnosticsArrayType Definition . 55
Table 75 – SessionDiagnosticsVariableType Definition . 56
Table 76 – SessionSecurityDiagnosticsArrayType Definition . 58
Table 77 – SessionSecurityDiagnosticsType Definition . 58
Table 78 – OptionSetType Definition . 59
Table 79 – Root Definition . 60
Table 80 – Views Definition. 61
Table 81 – Objects Definition . 61
Table 82 – Types Definition . 62
Table 83 – ObjectTypes Definition . 63
Table 84 – VariableTypes Definition . 63
Table 85 – ReferenceTypes Definition . 64
Table 86 – DataTypes Definition . 66
Table 87 – OPC Binary Definition.
...