The term Discrepancy refers to different kind of errors. In general, a Running Time Discrepancy Alarm is activated when there is a limit for an action to take time and this time is exceeded. A Valve Running Time Discrepancy (or shorter, Valve Discrepancy) refers to a failure of a valve to reach its limit switch in predefined time limit. A Sequence Step Time Discrepancy (or shorter, Sequence Discrepancy) would be the activated if it takes too long for a step conditions to be set.