USER GUIDE
FALCON
57
EN2Z-0962GE51 R0715
Equivalent
The High Limit Enable property defines if high limit alarms are generated on the
BACnet bus. The following conditions must be true for the system to generate an
alarm:
•
High limit is exceeded and this condition remains present for at least the defined
alarm delay (time)
•
Transition events ´To-OffNormal` and ´To-Normal`are enabled
•
Notification class (urgent, high or low) is allocated to this point
•
Notify type is set to ´Alarm` (not ´Event`)
If all of these conditions are true, then an alarm of event type ´To-Off-Normal` is set
off.
The high limit can be predefined in CARE and changed in the Excel Web HTML
Interface later.
NOTE: According to the BACnet standard, disabling the High Limit does only
disable the reporting of the High Limit Alarm onto the BACnet bus. When
the High Limit is exceeded, the datapoint will still be “in Alarm”, and if a
BACnet front-end is polling the alarms of a BACnet controller, also
datapoints with High Limit disabled will be displayed on the BACnet front-
end as being “in Alarm”.
With Excel Web it is possible to disable both High and Low Limit alarms at the same
time, if the alarm delay time is set to 100,000 sec or longer.
In Alarm
NOTE: The In Alarm property exists twice. In one case, it displays the actual status
of certain datapoints, in the other case, it allows selecting which condition
should be the alarm condition.
Display of actual status
Datapoint Type
AI AO AV BI BO BV MI MO MV PC RI RO
User Interface
HTML Interface
CARE
Editing
-
Equivalent
Displays the alarm status of the datapoint, which can be caused by faults and Off-
Normal conditions.
NOTE: Multiple flag indications may be possible.
Example: A ´To-Fault transition` will always enable the ´In Alarm` flag. Hence both,
the ´In Alarm` and the ´Fault` status flags are enabled.
See also "Fault" and "Out of Service" sections.
Definition of alarm condition
Datapoint Type
AI AO AV BI BO BV MI MO MV PC RI RO
User Interface
HTML Interface
CARE
Editing
x
x
Equivalent
Is in Alarm
Defines the state which indicates and sets off an ´alarm`. If enabled, the alarm text
of the corresponding transition event is displayed.
Example:
Summary of Contents for Centraline FALCON
Page 1: ...FALCON User Guide Copyright 2015 Honeywell GmbH All Rights Reserved EN2Z 0962GE51 R0715 ...
Page 2: ...FALCON USER GUIDE EN2Z 0962GE51 R0715 ...
Page 4: ...FALCON USER GUIDE EN2Z 0962GE51 R0715 4 ...
Page 9: ......
Page 11: ...USER GUIDE FALCON EN2Z 0962GE51 R0715 7 ...
Page 12: ...FALCON USER GUIDE EN2B 0962GE51 R0715 8 ...
Page 77: ...USER GUIDE FALCON 73 EN2Z 0962GE51 R0715 ...
Page 113: ...USER GUIDE FALCON 109 EN2Z 0962GE51 R0715 Fig 26 Alarm behavior of pulse converter datapoint ...