TagMetaData
- Last UpdatedJun 09, 2023
- 1 minute read
This Azure custom query returns the tags based on the query expression. The custom query expression supports the following parameters.
|
Parameter Name |
Parameter Choice |
Example |
Description |
|---|---|---|---|
|
QueryName |
Required |
TagMetaData |
Azure function query name |
|
SelectColumn |
Optional |
["*","Location"], Or ["FQN", "Source", "Description", "EngUnit", "EngUnitMax", "EngUnitMin", "InterpolationType", "MessageOff", "MessageOn", "TagName", "TagType", "SourceTag", "Namespace", "Alias","Location"] |
Option to pick required properties from AVEVA Insight. |
|
Filter* |
Optional |
"startswith(FQN,'Weather.Los Angeles')" |
Expression to apply filter on the tags. |
For more information about the supported Filter expressions, see the "Query Expression Operator" section.
The following properties are returned from the Azure function query for "TagMetadata".
|
Property Name |
Datatype |
Description |
|---|---|---|
|
FQN |
string |
The fully qualified name for the tag. A fully qualified name uses the format: datasource.tagname. |
|
TagName |
string |
The unique name of the tag within the Wonderware Historian system. |
|
Source |
string |
The data source. |
|
Description |
string |
The description of the tag. |
|
EngUnit |
string |
The engineering units used for the tag's recorded values. |
|
EngUnitMax |
Double |
The maximum value of the tag, measured in engineering units. |
|
EngUnitMin |
Double |
The minimum value of the tag, measured in engineering units. |
|
MessageOff |
string |
The message associated with the FALSE state of the discrete tag. |
|
MessageOn |
string |
The message associated with the TRUE state of the discrete tag. |
|
TagType |
string |
The type of tag. 1 = Analog; 2 = Discrete; 3 = String; 5 = Event, 7 = Summary tag (analog or state) |