This structure contains additions as explanation and specification of the physical quantity such as "relative" for a relative velocity. The structure is defined in Table 46.
Table 46 – AnnotationDataType Structure
|
Name |
Type |
Description |
|
AnnotationDataType |
structure |
Subtype of Structure defined in OPC 10000-5 |
|
Annotation |
String |
Names the annotation to give further information about value like how it is measured or where it originates from. |
|
Discipline |
String |
Gives a human readable classification of the physical quantity according to its field of application to allow grouping of values. These can be, for example, “Engineering”, “Finance” or similar. |
|
Uri |
String |
Names a source for deeper description of the annotation. |
Examples are given in Table 47.
Table 47 – AnnotationDataType examples
|
Name |
Values for a linear acceleration |
Values for AC voltage |
Values for DC voltage |
Values for AC RMS voltage |
|
AnnotationDataType |
|
|
|
|
|
Annotation |
linear |
AC |
DC |
RMS |
|
Discipline |
- |
Electrical Engineering |
Electrical Engineering |
Electrical Engineering |
|
Uri |
- |
Its representation in the AddressSpace is defined in Table 48.
Table 48 – AnnotationDataType definition
|
Attribute |
Value |
|||||
|
BrowseName |
AnnotationDataType |
|||||
|
IsAbstract |
False |
|||||
|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
|
Subtype of the Structure defined in OPC 10000-5 |
||||||
|
Conformance Units |
||||||
|
Data Access Quantities Base |
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