“Restore Tag Scan Status Timeout” works in conjunction with the Tag field .SCANST. If the kernel re-starts with in the timeout specified by “Restore Tag Scan Status Timeout” , the kernel restores previous SCANST for the tag. If the kernel stopped normally, the last value is restored, otherwise, the last on-the-minute value is restored.
See Also 4.8.50.1 .SCANST.