Output Datapoints (Ao, Bo); Reference Inputs; Summary - Honeywell Centraline FALCON User Manual

Table of Contents

FALCON

Alarm behavior

Restart, Reset, Power Failure,

Application- and Firmware Download

Manual Override

EN2Z-0962GE51 R0715

Start

BACnet output datapoints will be initialized with the relinquish default value. After

the first heartbeat, the relinquish default value or the present value created out of

the application will be sent to the LON bus.

The output priority 1 "Manual Life Safety" represents the status of a local manual

override switch at the LON module (XFL and XFC modules). This information is read

from the Lon Module override switch after every start of the controller.

In principle, the value with the highest BACnet array priority (2 – 8) will be saved in

the battery-retentive RAM (see "Manual Override" section below).

At the beginning, all output points are not in alarm by default except those of which

output values have caused an alarm.

After the start alarm time has expired, an alarm will be saved in the alarm buffer,

shown in the alarm list and reported to the EBI as long as the alarm exists.

The following values/statuses will always be saved in the battery-retentive RAM and

restored after restart, reset, or power failure of the Excel Web controller.

• Runtime counter

• Last reset time

• Elapsed active time

• Highest output priority of the priorities 2 to 8

NOTE: The datapoint value and the status of the ´Out of Service` flag will not

The value with the highest BACnet array priority (2 – 8) will be saved in the battery-

retentive RAM and will then be restored after restart, reset, or power failure of the

Excel Web controller.

Start

Starts with the ´Start Value` defined in CARE. Later the referencing input value will

be taken. For more information on the COV value, please refer also to the "Change

of Value Increment" and the "View / Edit Values" sections).

NOTE:

Reference inputs are not visible in the Excel Web HTML Interface.

Reference inputs will try to subscribe COV. If the source device supports COV, COV

will be subscribed with a life-time of 1800 seconds, and will be re-subscribed every

900 seconds. If the source device does not subscribe COV, the source object (data-

point) will be polled.

The following table gives an overview of the I/O initialization of the various

datapoints regarding alarming, manual override and behavior at start, restart and

power failure.

Inputs

Outputs

be transmitted to the LON bus and will not be saved in battery

retentive RAM.

I/O Initialization

Values

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