Double-click the Points folder in the Nav tree.The Lon Point Manager view opens. This view lists the discovered points and those in the station database.
Click the chevron to the right of the Facets property.The
Config Facets window opens.
The screen captures illustrate configuring the nanIsNull facet in a legacy system so that the proxy point supports null data.
To continue, click OK.The changes display to the right of the
Facets property in the
Edit window.