Honeywell Centraline FALCON User Manual page 193

USER GUIDE
Here you can manually override the present value, that is, switch between
Manual and Auto mode and vice versa, view alarm status (flags) and change
the COV value.
Present Value
Here you can set the datapoint´s "operation mode", to auto or manual. In
addition the hardware reliability (sensor breaks), the characteristic and sca time
of the physical input is shown.
• Auto (applies to all datapoint types)
In Auto operation mode (Auto=checked), the datapoint shows the current
value of the datapoint.
• Manual (applies to all datapoint types)
In Manual mode, the current datapoint value can be overwritten.
To override the current value, click the Manual Override radio button and
enter the value into the field.
NOTE: When an AI datapoint is set into Manual mode and its value will be
overwritten, the ´overridden` and ´out of service` flag will be set (see
Status). The set out of service flag indicates that the datapoint is
decoupled from the physical input (sensor) to prevent a sensor value
from instantly overwriting the manual value in the next scan cycle..
NOTE: When an AO datapoint is set into Manual mode, its current value will
be overwritten by the manual value that has a higher priority (8). As
long as no other process of higher priority writes to the analog output,
the manual value is present. The overridden flag will be set (see
Status).
• Manual Life Safety (applies to AO, BO, MO datatpoints only)
Shows the status of the manual override switch or potentiometer of the LON
module.
• Feedback Value (applies to BO only). Will be supported in a future version
of Excel Web.
• Polarity (applies to BI and BO datapoints only)
The polarity indicates the relationship between the physical state of the input
and the logical state represented by the present value. If the polarity is
NORMAL, then the ACTIVE state of the present value is also the ACTIVE or
ON state of the physical input. If the polarity is REVERSE, then the ACTIVE
state of the present value is the INACTIVE or OFF state of the physical
Input.
Polarity Present Value
NORMAL INACTIVE
NORMAL ACTIVE
REVERSE INACTIVE
REVERSE ACTIVE
Select polarity by clicking corresponding radio button.
189
Physical State of Input
OFF or INACTIVE
ON or ACTIVE
ON or ACTIVE
OFF or INACTIVE
FALCON
Physical State of Device
not running
running
not running
running
EN2Z-0962GE51 R0715