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Honeywell 301C User Manual
IAQPoint2 continued
80
Data Type
Required
1
Storage
Type
2
BACnet
Writeable?
Value
object_identifier R N N
Modbus address * 256 + 4. For example an
IAQPoint2 at Modbus address 005 will
appear as 1284 or 0x0504.
object_type enumerated R C N analog_value (2)
event_state enumerated R C N normal (0)
object_name character string R N N
IAQPoint CO2 AdXXX.Bmin" where XXX is
the Modbus address.
out_of_service boolean R C N FALSE
present_value real R N Y
Gas threshold. This is copied from the
sensor via the 301C. BACnet permits
writing. But this has no effect and the
value reverts in a few seconds.
reliability enumerated O C N no_fault_detected (0)
status_flags
in_alarm boolean R C N always false (0)
fault boolean R C N always false (0)
overridden boolean R C N always false (0)
out_of_service boolean R C N always false (0)
units enumerated R C N
if CO2 fitted, ppm (96)
if VOC fitted, % (98)
object_identifier R N N
Modbus address * 256 + 5. For example an
IAQPoint2 at Modbus address 005 will
appear as 1285 or 0x0505.
object_type enumerated R C N analog_value (2)
event_state enumerated R C N normal (0)
object_name character string R N N
IAQPoint CO2 AdXXX.Bmax" where XXX is
the Modbus address.
out_of_service boolean R C N FALSE
present_value real R N Y
Gas threshold. This is copied from the
sensor via the 301C. BACnet permits
writing. But this has no effect and the
value reverts in a few seconds.
reliability enumerated O C N no_fault_detected (0)
status_flags
in_alarm boolean R C N always false (0)
fault boolean R C N always false (0)
overridden boolean R C N always false (0)
out_of_service boolean R C N always false (0)
units enumerated R C N
if CO2 fitted, ppm (96)
if VOC fitted, % (98)
Notes
1 -- 'R' indicates that this property is required by ASHRAE Standard 135
'O' indicates that the property is optional in ASHRAE Standard 135
2 -- 'C' indicates the property is hard-coded as a constant
'N' indicates the property is stored in non-volatile memory
'R' indicate the property is computed constantly and stored in RAM.
Group Property
Analog Values
BminBmax