Reference: Script Status Options
This refresh interval defines the time between remote script refresh operations. This applies only to those scripts displayed in the script results window with auto refresh engaged. Remote refresh is applied on a script by script basis. It does not apply to all scripts from a particular server, This is the minimum time. Longer intervals may result as the number of items to refresh grows.
Note: This operation requires a connection to a remote Beyond FTP server. The number of such connections must be set in the Configure Services dialog.