10 OPC UA DataTypes ToC Previous Next

10.3 TagDataType ToC Previous Next

This structure contains aggregated information to identify one or more Tags corresponding to the Tags attribute defined in ResultType and ResultDataType. The structure is defined in Table 72.

Table 72 - TagDataType Structure

Name Type Description
TagDataType structure Subtype of the 0:Structure defined in OPC 10000-5.
Name 0:String    The mandatory Name is the type of the identifier. It can be empty if a system could not determine the identifier. If it is empty, it is the application responsibility to handle the received Tag.   Example:   PRODUCT_ID, PART_ID, SOCKET_NUMBER, VIN, etc.Note:   Application can send custom names which could be a combination of different terms in a given system.
Value 0:String    The mandatory Value is the identifier of the tag corresponding to the Name attribute.   Note: There could be additional rules and formats for different types of identifiers. Applications should handle it based on the defined constraints.Example:   If it is a VIN, it should be defined as per the respective standard.

Its representation in the AddressSpace is defined in Table 73.

Table 73 - TagDataType Definiton

Attribute Value        
BrowseName TagDataType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the 0:Structure defined in OPC 10000-5.          

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