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11 result(s) for AliasNameCategoryType

• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  6.3.1 Definition
  Definition AliasNameCategoryType instances are used to organize the AliasNameType instances that a Server defines. They can also include instances of AliasNameCategoryType to allow hierarchical groupings of AliasNames . It includes ... finding instances of AliasNameType in the AliasName hierarchy, starting at this instance of AliasNameCategoryType . For example, if the Method call is made on the Aliases AliasNameCategoryType instance
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  9.1 Overview
  AliasNameCategories in a Server . Server vendors are free to add additional instances of AliasNameCategoryType under this hierarchy
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  9.2 Aliases
  DataType TypeDefinition OrganizedBy by the Objects Folder defined in OPC 10000-5 HasTypeDefinition ObjectType AliasNameCategoryType Defined in 6.3 HasProperty Variable LastChange VersionTime PropertyType ConformanceUnits AliasName Hierarchy This is the root ... alias related Objects . It can contain instances of AliasNameType Objects and / or instances of AliasNameCategoryType Objects . The LastChange Property , which is optional in the AliasNameCategoryType , shall be present
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  9.3 TagVariables
  TagVariables TagVariables is an instance of AliasNameCategoryType . TagVariables shall restrict instances of AliasNameType to those that have an AliasFor References that point to Variables. The TagVariables instance is formally defined ... References NodeClass BrowseName DataType TypeDefinition OrganizedBy by the Aliases defined in 9.2 HasTypeDefinition ObjectType AliasNameCategoryType Defined in 6.3 ConformanceUnits AliasName Category Tags This is the root folder for AliasNameType instances
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  9.4 Topics
  Topics Topics is an instance of AliasNameCategoryType . Topics shall restrict instances of AliasNameType to only have AliasFor References that point to PublishedDataSetType (or subtypes) instances (PublishedDataSetType is defined ... References NodeClass BrowseName DataType TypeDefinition OrganizedBy by the Aliases defined in 9.2 HasTypeDefinition ObjectType AliasNameCategoryType Defined in 6.3 ConformanceUnits AliasName Category Topics It can contain additional AliasNameCategoryType Objects , which could
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  A.2 AliasNames used within a single Server
  model can be used inside of a Server . This sample includes multiple instances of AliasNameCategoryType . The figure illustrates that Objects could be referenced by more than one instance of AliasNameType
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  B.1 Aggregating Server with a collection of Aggregates
  list. The aggregating Server shall merge all AliasNames listed under the well-known AliasNameCategoryType instances. Some information models could define their own well-known AliasNameCategoryType Objects , which then also shall ... TI101. Figure B.1 - Aggregating AliasNames Server example In the above example, if the Temperatures AliasNameCategoryType instance were defined locally in the Server and not defined in a standard namespace then
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  B.2 GDS
  folder, but a GDS could also choose to replicate or even merge the additional AliasNameCategoryType instances from the Servers that have registered. Figure B.2 provides an illustration
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  C.2 Register a Server
  shall provide a single merged tree list for any of the well-known AliasNameCategoryType Objects defined in 9.3 (i.e. TagVariables or Topics ). The organization of the actual structure ... AliasNameCategoryType hierarchy is specific to the GDS vendor and/or the configuration of the GDS, but all AliasNameCategoryType instances shall be aggregated into the GDS. This hierarchy allows for a single
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  C.3 Unregister a Server
  Unregister a Server The GDS should automatically remove any instances of AliasNameType and AliasNameCategoryType that are associated with an unregistered Server . However, the AliasName instance or AliasNameCategory instance could
• OPC-10000-17 – OPC Unified Architecture - Part 17: Alias Names
  D.1.1 Overview
  AliasName definitions. An aggregating Server or GDS could Subscribe for the LastChange Variable on AliasNameCategoryType instances to detect when a value is changed, but for systems with a large number