7 OPC UA DataTypes

Figure 30 shows the AAS data types which are directly derived from OPC UA data types enumeration and string. The details are defined in the following sub-sections of this chapter.

Figure 30 – Primitive AAS data types

7.1 AASIdentifierTypeDataType enum value definition

Table 67 defines the AASIdentifierType data type.

Table 67 – AASIdentifierTypeDataType Definition

Name	Value	Description
IRDI	0	IRDI according to ISO29002-5 as an Identifier scheme for properties and classifications
IRI	1	Internationalized Resource Identifier according to RFC3305
Custom	2	Custom identifiers like GUIDs (globally unique Identifiers)