Honeywell IAQPoint2 User Manual page 1464

Use and Calibration
Points Definitions
Point 94 RESET FAULT
This point can be used as a LDO for detecting 'not
Commanded Reset'. Set the initial value to RESET and set the
current value to NORMAL. When a reset appends, this point
will toggle to RESET.
Point 99 ERROR STATUS
This point shows current errors on the detector. See the table
below for details
Fault:
ERROR STATUS (Point 99).
This point uses a bit field definition as described below. When
the sensor is NOT calibrated, bit B2 is set. B3 is for sensor
related error. Ex.: eprom life has expired. Service Alarm bit
(B5) will be set after 15 months without calibration.
Error Status Point Descriptions
Bit
B0 Read as "0"
B1 Read as "0"
B2 Sensor not calibrated
B3 Sensor error
B4 CPU error
B5 Service alarm
B6 Read as "0"
B7 Read as "0"
32
If Set
901T User Manual