Honeywell Centraline FALCON - Page 107

USER GUIDE FALCON
103 EN2Z-0962GE51 R0715
For analog inputs and outputs, the event states and transitions according to the
BACnet standard can be as follows:
NORMAL FAULT
OFF- NORMAL
HIGH LIMIT
LOW LIMIT
Back to Normal
Back to Normal
To Off-Normal
To Off-Normal
To Fault
To Fault
C
A B
Besides the actual alarm value or alarm condition, the combination of the settings
for instrinsic reporting (transitions) and Off-Normal conditions have a decisive
influence on the alarm state displayed in the alarm buffer (EBI) and in the point
dialog (see table):
Selected Event
Transition
(Reporting)
Selected
Off Normal
Condition
Allowed Event
Transitions
Event State (Alarm Buffer)
Event State
(Point Dialog)
Back To Normal
x
A B
A C
Normal
Normal
To Off-Normal
x
A C
B C
Off-Normal
Off-Normal
To Fault x
A B
B C
Fault Fault
High Limit
Enable
x
A C
A C
Off-Normal
Off-Normal
Low Limit
Enable
x
A
C
A C
Off-Normal Off-Normal
For analog input and output points, the event state display of an analog input or
output point in the alarm buffer and in the point dialog are not the same if the
following settings have been set:
The "To Off-Normal" reporting and the Off-Normal Conditions "High Limit Enable"
and "Low Limit Enable" are disabled.
Due to these selections, the following transitions (dashed in the following graphic)
are not possible:
A C
A C