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Scope: Core (OPC-10000-*) All specs

45 result(s) for hierarchical References

OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

4.6.4 Instantiation of complex TypeDefinitionNodes

InstanceDeclaration shall never reference two Nodes having the same BrowseName using forward hierarchical References . Instances based on InstanceDeclarations shall always keep the same BrowseName as the InstanceDeclaration they are derived
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

4.10.2 Interface Model

that all Interfaces of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node . Rules for the definition of Interfaces : Interface ObjectTypes shall be abstract subtypes
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.3.2 Attributes

References are referred to as bidirectional . Although not required, it is recommended that all hierarchical References be instantiated as bidirectional to ensure browse connectivity. A bidirectional Reference is modelled
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.4 View NodeClass

References HierarchicalReferences 0..* Top level Nodes in a View are referenced by hierarchical References (see 7.3 ). HasProperty 0..* HasProperty References identify the Properties of the View . Standard Properties NodeVersion ... View Node to provide these Services in the context of the View . HasProperty References are used to identify the Properties of a View . The Property NodeVersion is used to indicate
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.5.1 Object NodeClass

define relationships to other Nodes . No restrictions are placed on the types of References used or on the NodeClasses of the Nodes that may be referenced. However, restrictions ... Object is used as an InstanceDeclaration (see 4.6 ) then all Nodes referenced with forward hierarchical References direction shall have unique BrowseNames in the context of this Object . If the Object
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.5.2 ObjectType NodeClass

define relationships to other Nodes . No restrictions are placed on the types of References used or on the NodeClasses of the Nodes that may be referenced. However, restrictions ... ObjectTypes . Standard ReferenceTypes are described in Clause 7 . All Nodes referenced with forward hierarchical References shall have unique BrowseNames in the context of an ObjectType
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.6.3 Properties

leaf of any hierarchy; therefore they shall not be the SourceNode of any hierarchical References . This includes the HasComponent or HasProperty Reference , that is, Properties do not contain Properties
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.6.4 DataVariable

DataVariable or a VariableType . DataVariables shall not be the TargetNode of any HasProperty References . Therefore, a HasComponent Reference pointing to a Variable Node identifies it as a DataVariable . The HasTypeDefinition ... DataVariable is used as InstanceDeclaration (see 4.6 ) all Nodes referenced with forward hierarchical References shall have unique BrowseNames in the context of this DataVariable
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.6.5 VariableType NodeClass

define relationships to other Nodes . No restrictions are placed on the types of References used or on the NodeClasses of the Nodes that may be referenced. However, restrictions ... VariableTypes . Standard ReferenceTypes are described in Clause 7 . All Nodes referenced with forward hierarchical References shall have unique BrowseNames in the context of the VariableType
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.7.1 Method NodeClass

TargetNode of at least one HasComponent Reference . The SourceNode of these HasComponent References shall be an Object or an ObjectType . If a Method is called, then the NodeId ... Method is used as InstanceDeclaration (see 4.6 ) all Nodes referenced with forward hierarchical References shall have unique BrowseNames in the context of this Method . The Variable referenced by a HasArgumentDescription
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.3 HierarchicalReferences ReferenceType

HierarchicalReferences ReferenceType The HierarchicalReferences ReferenceType is an abstract ReferenceType ; only subtypes of it can be used and they shall be a non-symmetric Reference . The semantic of HierarchicalReferences ... denote that References of HierarchicalReferences span a hierarchy. It means that it may be useful to present Nodes related with References of this type in a hierarchical-like way. HierarchicalReferences
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.4 NonHierarchicalReferences ReferenceType

hierarchy. To distinguish Hierarchical and NonHierarchical References , all concrete ReferenceTypes shall inherit from either hierarchical References or Non-hierarchical References , either direct or indirect. There are no constraints defined
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.5 HasChild ReferenceType

abstract ReferenceType ; only subtypes of it can be used. It is a subtype of HierarchicalReferences . The semantic is to indicate that References of this type span a non-looping hierarchy
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.11 Organizes ReferenceType

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to organise Nodes in the AddressSpace . It can be used
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.17 HasEventSource

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to relate event sources in a hierarchical, non-looping organization. This
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.25 HasFieldDescription

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to link from a DataTypeRefinement Object refining a Structured DataType
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

7.29 AllowedSubtype

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to link from a SubtypeRestriction Object to a Variable defining
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

C.2.2 Simple notation

BrowseName of the ReferenceType . Any hierarchical ReferenceType Asymmetric ReferenceTypes that are subtypes of HierarchicalReferences should be exposed the same way as asymmetric ReferenceTypes except that an open arrow is used
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.7.4.5 SimpleAttributeOperand

replaced by a SimpleAttributeOperand whenever all ReferenceTypes in the RelativePath are subtypes of HierarchicalReferences and the targets are Object or Variable Nodes and an Alias is not required . Table ... equivalent to a RelativePath that specifies forward references which are subtypes of the HierarchicalReferences ReferenceType . All Nodes followed by the browsePath shall be of the NodeClass Object or Variable
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

A.2 BNF of RelativePath

forward slash character indicates that the Server is to follow any subtype of HierarchicalReferences . . The period (dot) character indicates that the Server is to follow any subtype of a Aggregates
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.4 Objects

thus the " Objects " Object can also reference View Nodes using Organizes References . The intent of the " Objects " Object is that all Objects and Variables that ... type definitions or other organizational purposes (e.g. organizing the Views ) are accessible through hierarchical References starting from this Node . However, this is not a requirement, because not all Servers
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.6 ObjectTypes

that all ObjectTypes of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node . However, this is not required and Servers might not provide some
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.7 VariableTypes

that all VariableTypes of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node . However, this is not required and Servers might not provide some
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.8 ReferenceTypes

browse entry point for ReferenceType Nodes . Figure 6 illustrates the organization of ReferenceTypes . Organizes References are used to define ReferenceTypes and Objects referenced by the " ReferenceTypes " Object ... queries, the Server shall provide all its ReferenceTypes , directly or indirectly following hierarchical References starting from the " ReferenceTypes " Object . This means that, whenever the client follows a Reference
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.9 DataTypes

wishes to expose in the AddressSpace . DataType Nodes should be made available using Organizes References pointing either directly from the "DataTypes" Object to the DataType Nodes or using ... that all DataTypes of the Server exposed in the AddressSpace are accessible following hierarchical References starting from the "DataTypes" Object . However, this is not required. The " DataTypes
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.10 EventTypes

that all EventTypes of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node . It is required that the Server expose all its EventTypes
OPC-10000-5 – OPC Unified Architecture - Part 5: Information Model

8.2.11 InterfaceTypes

that all Interfaces of the Server are either directly or indirectly accessible browsing HierarchicalReferences starting from this Node . However, this is not required and Servers might not provide some
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

8.6.6 HasPushedSecurityGroup

concrete ReferenceType that can be used directly. It is a subtype of the HierarchicalReferences ReferenceType . The SourceNode of References of this type shall be an Object of ObjectType PubSubKeyPushTargetType ... BrowseName HasPushedSecurityGroup InverseName HasPushTarget Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype of HierarchicalReferences defined in OPC 10000-5 . Conformance Units PubSub Model SKS Push Table 225 specifies
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.4.2.5 DataSetToWriter

concrete ReferenceType that can be used directly. It is a subtype of the HierarchicalReferences ReferenceType . The SourceNode of References of this type shall be an Object of ObjectType PublishedDataSetType ... BrowseName DataSetToWriter InverseName WriterToDataSet Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype of HierarchicalReferences defined in OPC 10000-5 . Conformance Units PubSub Model Base
OPC-10000-22 – OPC Unified Architecture - Part 22: Base Network Model

5.6.2 HasLowerLayerInterface ReferenceType

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences ReferenceType . The usage of the References is following the YANG modelling approach which is using reference pointers ... HasLowerLayerInterface InverseName HasHigherLayerInterface Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype of the HierarchicalReferences ReferenceType defined in OPC 10000-5 Conformance Units BNM IETF Interface Base Info
OPC-10000-23 – OPC Unified Architecture - Part 23: Common ReferenceTypes

4.4.2 Definition

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to relate the controlling component to the components controlled ... BrowseName Controls InverseName IsControlledBy Symmetric FALSE IsAbstract FALSE References NodeClass BrowseName Comment Subtype of HierarchicalReferences defined in OPC 10000-5 Conformance Units Base Info Controls
OPC-10000-23 – OPC Unified Architecture - Part 23: Common ReferenceTypes

4.6.2 Definition

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to relate a component to other components it requires in order ... BrowseName Requires InverseName IsRequiredBy Symmetric FALSE IsAbstract FALSE References NodeClass BrowseName Comment Subtype of HierarchicalReferences defined in OPC 10000-5 Conformance Units Base Info Requires
OPC-10000-23 – OPC Unified Architecture - Part 23: Common ReferenceTypes

4.9.2 Definition

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . It is a symmetric Reference , that is, it provides the same semantic in both directions The semantic
OPC-10000-23 – OPC Unified Architecture - Part 23: Common ReferenceTypes

4.10.2 Definition

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . It is a symmetric Reference , that is, it provides the same semantic in both directions. The semantic
OPC-10000-25 – OPC Unified Architecture - Part 25: Object Serialization

6.3.4 Include- and ExcludeReferenceTypes Properties

always excluded. Figure 8 shows a usage example for the ReferenceType Properties . IncludeReferenceTypes contains HierarchicalReferences . This selects Variable1 , Object1 and Property3 . ExcludeReferenceTypes contains HasComponent . This removes Variable1 and Object1 from
OPC-10000-25 – OPC Unified Architecture - Part 25: Object Serialization

6.5 HasSerializationEntity ReferenceType

concrete ReferenceType that can be used directly. It is a subtype of the HierarchicalReferences ReferenceType. The semantic of this ReferenceType is to reference the serialized data of the SourceNode ... BrowseName HasSerializationEntity InverseName SerializationEntityOf Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype of HierarchicalReferences defined in OPC 10000-5 . Conformance Units ObjectSerialization Base
OPC-10000-83 – OPC Unified Architecture - Part 83: UAFX OfflineEngineering

A.7 ReferenceType mapping

hierarchy, see Figure A.15 . In Figure A.15 , the OPC UA ReferenceTypes References and HierarchicalReferences are represented by a single AML InterfaceClass, but the ReferenceType Organizes is represented by a pair
OPC-10000-100 – OPC Unified Architecture - Part 100: Devices

4.9 DeviceSet entry point

DeviceSet Object . The components of such complex Devices shall be locatable by following Hierarchical References from the root instance. An example is the Modular Device defined in 9.4 and also
OPC-10000-100 – OPC Unified Architecture - Part 100: Devices

8.6.1 UpdateParent ReferenceType

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to link related components that are target for software update. These ... UpdateParent InverseName UpdateChild Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype 0:HierarchicalReferences Conformance Units DI SU UpdateParent reference
OPC-10000-100 – OPC Unified Architecture - Part 100: Devices

8.6.2 CanUpdate ReferenceType

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . For components with SoftwareUpdate that accept Solution Packages this reference type is used to describe which subcomponents ... CanUpdate InverseName CanBeUpdatedBy Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype 0:HierarchicalReferences Conformance Units DI SU CanUpdate reference
OPC-10000-110 – OPC Unified Architecture - Part 110: Asset Management Basics

13.1.2 Contains ReferenceType

base to point to various types of locations. It is a subtype of 0: HierarchicalReferences . The semantic of this ReferenceType is to link an Object representing some type of location ... Objects (like assets) located in that location References NodeClass BrowseName Comment Subtype of 0:HierarchicalReferences defined in OPC 10000-5 Conformance Units AMB Hierarchical Location Objects AMB Operational Location Objects
OPC-10030 – OPC Unified Architecture - Common Object Model: ISA-95

5.1.7.2 UMLAssociation

ReferenceType. UMLCardinality N/A Standard ModellingRules only affect instance declaration specified by subtypes of Hierarchical References . UMLAssociation Name BrowseName A name defined in ISA-95 may be changed. InverseName will
OPC-10030 – OPC Unified Architecture - Common Object Model: ISA-95

5.1.7.5 UMLAggregation

ReferenceType. UMLCardinality N/A Standard ModellingRules only affect instance declaration specified by sub-types of Hierarchical References . UMLAssociation Name BrowseName A name defined in ISA-95 may be changed. InverseName will
OPC-40001-4 – OPC UA for Machinery - Part 4: Energy Management

8.1 Contains

concrete ReferenceType and can be used directly. It is a subtype of HierarchicalReferences . The semantic of this ReferenceType is to reference from a main energy measurement point to another ... Contains InverseName ContainedIn Symmetric False IsAbstract False References NodeClass BrowseName Comment Subtype of 0:HierarchicalReferences Conformance Units Machinery Energy Contains
OPC-40502 – OPC UA for Computerized Numerical Control (CNC) Systems - for CNC Systems: OPC UA Information Model

5.2 Model Overview

accessed via the CncAxisList Object ). However, logical structures are additionally modeled by using Hierarchical References ( organizes ). For instance, a CNC channel of type CncChannelType holds R eferences to all axes