I've added a "degraded state" indicator to the VACSTAT block on the CDS Overview MEDM (magenta oval in attachment). This circle is either the same light green as the block colour, or is a darker green to show at least one gauge has been disabled.

Currently we are running with HAM1 PT100 disabled in VACSTAT due to the vent.

The VACSTAT detailed MEDM (snippet in lower part of attachment) has a "NUM_GAUGES_DISABLED" line added, which turns RED if non-zero.