Create and configure a tag to track the value of scalar data.
-
In
Tag Viewer, click
Create.
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Specify a path, or display name, for the tag.
You can also use the wildcard character (*) to specify multiple paths.
Refer to the following table to see how you can use the wildcard to specify
multiple paths, or display names.
| Goal
|
Example Tag Search Path
|
Result
|
| I want to specify one tag path.
|
Station1.Temperature
|
Searches for one tag,
Station1.Temperature.
|
| I want to specify multiple tags using a common path.
|
Station*
|
Searches for all tags starting with
Station.
|
Note
Use dot separators
instead of slashes in tag paths. The tag path is how you programmatically
reference the tag.
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Specify the data type of the values the tag will hold.
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Specify the workspace in which your tag will monitor data.
Users need access to this workspace to use this tag for dashboards, alarms, and notebooks.
You cannot move a tag to another workspace after you create it.
-
Specify the retention type, which determines how long to store previous tag
values.
After you configure your tag, you can see a chart of current and past
values under History.
-
Specify whether the tag will aggregate values.
If a tag collects aggregates, you can see the minimum, maximum, and average values of the
tag, as well as its total number of updates, in the Tag
Viewer list.
-
Click
Create.
-
Click the gear next to the tag to view details and set keywords or properties
for the tag.
You can use keywords and properties to search for tags in Tag
Viewer or programmatically with Query Tags.
-
Click
Tag Viewer to return to your list of tags.
-
Search for a tag in one of the following ways:
-
Type a tag path or part of a tag path in
the search bar.
-
Click the filter button next to the search bar to search for exact matches. You can include multiple queries, but only tags
matching all the queries return as results.
You can use the wildcard character (*) when you search by path.
After you create and configure a tag, you can write values to tags, read tags, query tags, and create alarms or data visualizations
using tag values.
