The status signals ‘Open’ and ‘Closed’ are assigned to binary signal inputs. The signals conditioned by debouncing and chatter suppression (see Chapter “Debouncing and Chatter Suppression”) are used for further processing. If no logic value of “1” is present at any of the two binary signal inputs, the running time monitoring function is started. For the duration of the set time period for running time monitoring or until the contacts on the switchgear unit are back to a defined position – either “Open” or “Closed” – the signal “Intermediate position” is issued.

If DEV01: Interm. pos. suppr. is set to Yes, the previous switchgear unit status will continue to be signaled while the switchgear unit is operating. Once the contacts on the switchgear unit have reached their new position, the updated status is signaled.

The signal “Faulty position” is issued if the contacts on the switchgear unit have not reached either their “Open” or “Closed” position after the set time period for running time monitoring and the delay time set in MAIN: Delay Man.Op.Superv. have elapsed. If DEV01: Stat.ind.interm.pos. is set to Yes, a delay time of 5 s is started. Once this time period has elapsed and there is no status signal for the position, the state actually present at the binary inputs will be signaled.