History

An alarm is displayed on the active alarms panel as long as it remains active, and every change of its status is recorded on the alarms history panel provided its alarm type property is different from warning.The alarms history panel can display up to a maximum of 200 lines of alarm states. The history capacity can be changed via a PLC call to the system function GFB_SYS 720.The alarms history is automatically saved and reloaded at next power on.The AlarmHistoryDelete function is available to reset the alarms history; the function does not require any input parameters.Alarms history reset doesn’t affect the active alarms list.