Configure how long or how many historical tag values you store on your SystemLink server
or SystemLink Cloud account.
What to Use
You can find the
SystemLink APIs on the Data Communication palette in LabVIEW and LabVIEW NXG.
What to Do
- On the client, create the following diagram in a VI to configure how you want to store
tag values on your SystemLink server or SystemLink Cloud account.
Customize the gray
sections for your unique programming goals.

Troubleshooting
If you encounter errors, try the following
troubleshooting strategies:
- If you receive timeout errors, connection refused errors, or 404 errors,
verify the following things:
- The VI is connected to the correct server machine.
- The NI Web Server is configured, running on the server machine, and
accepts remote connections.
- The web service you want to use is installed on the server
machine.
- If Open Configuration (Auto) returns an error, verify
the application is on the server machine or a system managed by the
server.
- If you receive a 401 unauthorized errors, verify the credentials you specify
are correct and have sufficient permission specified in the NI Web
Server.

Note
Verify the permissions for each SystemLink API.
- If your application is a WebVI and you receive network errors, verify you
enabled CORS for web servers running on the same machine as clients in NI
Web Server.
- If you application is a WebVI and you want to deploy it, use Open
Configuration (Auto) and log into the web server before
accessing the WebVI.