B 3.2 Activating Horns By Messages - ABB Freelance 2000 Manual

Section B Messages and Hints

B 3.2 Activating horns by messages

DigiVis evaluates the incoming messages from the process stations. If an incoming message
passes the set horn filter, the control room horn is activated by DigiVis directly.
If an incoming message passes the set horn filter and a field horn must be activated, DigiVis
writes a logic-1 signal to an internal input of the respective horn function block. The field horn is
switched on. As feedback, an event message is generated and sent to DigiVis.
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