IEC 62541-5:2015

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

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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

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

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

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. 66
Table 88 – XML Schema Definition . 66
Table 89 – EventTypes Definition.
...