Xnx And Xcd - Honeywell 301C User Manual

XNX and XCD

Group Property
object_identifier
object_type
event_state
object_name
out_of_service
present_value
reliability
status_flags
in_alarm
fault
overridden
out_of_service boolean
units
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.
1
Data Type
Required
R
enumerated R
enumerated R
character string R
boolean R
real R
enumerated O
boolean R
boolean R
boolean R
R
enumerated R
Storage
BACnet
2
Writeable?
Type
Modbus address * 256 + 1. For example an
C N XNX at Modbus address 010 will appear as
2561 or 0x0A01.
C N analog_input (0)
if gas sensor fault Fault (1),
R N
else normal (0)
"SSS GGGG AdAAA.GGGGG" where SSS is
the sensor type, GGGG is the gas name and
AAA is the Modbus address. Gas names are
truncated to 4 and 5 characters. Values for
N N
sensor type are "XNX" or "XCD" For
example, an XNX at address 10 with a
Methane sensor will populate this object
name with "XNX Meth Ad010.Metha"
R N FALSE
R N Gas reading
As appropriate reports
no_fault_detected (0) or
R N
unreliable other (7)
Fault is detected within 60 seconds
if faulty "true" (1)
R N
else "false" (0)
if faulty "true" (1)
R N
else "false" (0)
R N "false" (0)
R N "false" (0)
96 (ppm) or
N N 98 (percent) or
95 (no_units)
86
Value
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