9.2 Aliases

The Aliases Node is formally defined in Table 22.

Table 22 – Aliases definition
Attribute Value
BrowseNameAliases
References NodeClass BrowseName DataType TypeDefinition
OrganizedBy by the Objects Folder defined in OPC 10000-5
HasTypeDefinitionObjectTypeAliasNameCategoryTypeDefined in 6.3
HasPropertyVariableLastChangeVersionTimePropertyType
ConformanceUnits
AliasName Hierarchy

This is the root folder for all 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 for the root Aliases instance. This property shall reflect the last time any changes to AliasName occurred (see 6.3).