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Honeywell 301C User Manual
IAQPoint2 continued
Data Type
Required
1
Storage
Type
2
BACnet
Writeable?
Value
object_identifier R C N
Sensor number * 256 + 1. Sensor number
for RH is Modbus address + 2. For example
an IAQPoint2 at Modbus address 005 will
appear as 1793 or 0x0701.
object_type
enumerated R C N
analog_input (0)
event_state
enumerated R R N
if temp sensor fault, fault (1),
else normal (0)
object_name character string R N N
"IAQPoint RH AdXXX.RH" where XXX is
the Modbus address plus two.
out_of_service boolean R R N
FALSE
present_value real R R N
Relative Humidity in percent
reliability enumerated O R N
As appropriate reports
no_fault_detected (0) or
no_sensor (1) or
unreliable other (7)
Fault is detected within 60 seconds
status_flags
in_alarm boolean R R N
if not purchased or faulty "true" (1)
else "false" (0)
fault boolean R R
N
if not purchased or faulty "true" (1)
else "false" (0)
overridden boolean R C N
False (0)
out_of_service boolean R R
N
False (0)
units enumerated R N N
percent_relative_humidity (29)
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.
continued…
Group
Property
IAQPoint RH
Analog Inputs
78