9 Instances

9.2 Aliases

The Aliases Node is formally defined in Table 9.

Table 9 – Aliases definition

Attribute	Value
BrowseName	Aliases

OrganizedBy by the Objects Folder defined in OPC 10000-5

References	NodeClass	BrowseName	DataType	TypeDefinition
HasTypeDefinition	ObjectType	AliasNameCategoryType	Defined in 6.3
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.

If the Server supports ModelChangeEvents for AliasNames, this Node shall contain the NodeVersion Property. If a Server supports the NodeVersion Property for this Node, then it shall support the NodeVersion Property for all instances of AliasNameType and AliasNameCategoryType. A Client can check this required Node to determine if the Server supports ModelChangeEvents for AliasNames.