Troubleshoot your test and measurement data in
Tag Viewer to verify your system returns tag data as expected.
Before you start troubleshooting your tag data in
Tag Viewer, you must:
Verify the system for which you want to obtain and
communicate tag data is a managed system in Systems
Manager.
Verify the application sending tag data to your SystemLink Server is running.
In NI SystemLink Web Application, click
Tag Viewer.
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.
Double-click the tag to open it.
Under
Tag Details, verify the details for the tag appear accurate.
Verify the tag value updates at the time interval you set in the application.
Verify the data type of your tag is correct.
Verify the workspace your tag belongs to is correct.
Optional: Under
History, review the graph to visualize your data.
Note
To view historical data, you must have
Retention set to either
Count,
Duration, or
Permanent. If you set
Retention to
None, SystemLink will not retain the historical data of your tag.
If you see an event where your data did not perform as expected, select the magnifying glass to examine the value closer.
Click the camera () to capture the data for
analysis.
To return to the default view of the historical tag values,
double-click the graph.
If your data is not performing as expected, debug your application in the programming environment.
The following table highlights common troubleshooting tips.
Instructions
Example
Verify the endpoint of your application is your SystemLink Server URL.
Note
The protocol must be HTTP.
http://localhost:80
Verify you defined the tag path with dot separators.
Station1.Temperature.BuildingA
Verify your Salt minion's ID is correct. There are two ways you can locate your system's minion ID: