When we display the SNVTs in Vista, NL220 or Lonmaker the name of the SNVTS are very generic.
TAC Vista, Other
The XIF file was uploaded from the device.
On some devices the function specific names are not supplied from the controller.
Here is a sample of non specific names when uploaded from the controller
Here is a sample of the same controller with the XIF download from the manufacturers website.
Go to the controllers manufacturers website or contact them and get the functioned named XIF file for that device.
Use this instead of the uploaded XIF from the device.