For CC inputs, this is the CC active/inactive class setting setting value that currently corresponds to the event state. So if the CC input is in the event state, then this object is the active class setting value. If the CC input is in the normal state, then this object is the inactive class setting value. For relay/power, analog and temp outputs, this is the output class string given the event (Very High, High, Normal, Low and Very Low). The class string is based upon the chosen string in the class table for e.g. Info, Minor, Major, Minor, Critical etc. If the given event is High, the chosen Class string for this event is what returned.