Alarms

In the case of a change to the entries of the diagnosis database, the PROFINET Device sends an alarm to the PROFINET Controller. This immediately signals the coming or going of a malfunction. The alarm contains the source (slot, subslot, channel) as well as the diagnosis information.

In addition to diagnosis alarms, there are also alarms like the "PULL"/"PLUG" alarm which are not related to diagnosis entries (for example, a PLUG alarm is triggered when a module is pulled out or plugged in).