If the status field associated with a CV has a value of 128, the Current Value (CV) represents a valid value. Any status value other than 128 indicates a stale CV value. When reading a channel Current Value (CV) in Excel, include the status value in a cell adjacent to the CV so that you can determine if the CV is valid. For DeltaV Operate, you can configure dynamic coloring of the CV. To do this, use color by value, specifying the ST field with a threshold value of 128 as the normal color and 127 and 255 as the Stale Color.