278 • List of all BACnet Properties in Native Operation
Alarm_Value
WAGO-I/O-SYSTEM
750
BACnet/IP Controller
6.4 Alarm_Value
Data Type
BACnetBinaryPV
Object
Binary input
Description
This property, of the type BACnetBinaryPV, specifies the
value that the Present_Value property must have before an
event is generated. This property is required if intrinsic re-
porting is supported by this object.
Conditions for Generating a TO-OFFNORMAL Event
A TO-OFFNORMAL event is generated under these condi-
tions:
•
the Present_Value must maintain the value specified
by Alarm_Value for a minimum period of time,
specified in the Time_Delay property, and
•
the TO-OFFNORMAL flag must be enabled in the
Event_Enable property.
Conditions for Generating a TO-NORMAL Event
Once equal, the Present_Value must become not equal to
this property before a TO-NORMAL event is generated un-
der these conditions:
•
the Present_Value must remain not equal to the
Alarm_Value for a minimum period of time, speci-
fied by the Time_Delay property, and
•
the TO-NORMAL flag must be enabled in the
Event_Enable property.