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Honeywell 301C User Manual
Objects for 301EM continued
Group
Property Data Type
Required
1
Storage
Type
2
BACnet
Writeable?
Value
object_identifier R C N
For rel1, Modbus address * 256 + 8,
For rel2, Modbus address * 256 + 9,
For rel3, Modbus address * 256 + 10,
For rel4, Modbus address * 256 + 11
object_type
enumerated R C N
binary_values (5)
event_state
enumerated
R C N
normal (0)
object_name character string R N N
"VA301EM GGGG AdXXX.RelL" where
GGGG
is the gas name, XXX is the Modbus
address and L
is the relay number.
out_of_service boolean R C N
FALSE
present_value enumerated R R N
current state of relay
reliability enumerated 0 C N
not meaningful.
active_text
character string O C N
"ON"
status_flags
in_alarm boolean R C N
not meaningful.
fault boolean R C N
not meaningful.
overridden boolean R R N
always "false" (0)
out_of_service boolean R R N
always "false" (0)
object_identifier R C N
For Buzzer, Modbus address * 256 + 24,
For Out1, Modbus address * 256 + 25,
For Out2, Modbus address * 256 + 26,
For Out3, Modbus address * 256 + 27
object_type enumerated R C N
binary_value (5)
event_state enumerated R C N
normal (0)
object_name character string R N N
"VA301EM GGGG AdXXX.buzz"
"VA301EM GGGG AdXXX.out1"
"VA301EM GGGG AdXXX.out2"
"VA301EM GGGG AdXXX.out3"
where GGGG is the gas name, and XXX is
the Modbus address.
out_of_service boolean R C N
FALSE
polarity enumerated R C N
always Normal (0)
present_value enumerated R R N
state of buzzer and three 24VDC outputs.
reliability enumerated 0 C N
not meaningful.
relinquish_default R C N
not meaningful.
status_flags
in_alarm boolean R C N
not meaningful.
fault boolean R C N
not meaningful.
overridden boolean R C N
always "false" (0)
out_of_service boolean R C N
always "false" (0)
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.
Binary Values (Four instances per 301EM, regardless of number of sensors.)
rel1 to rel4
buzzer, out1 to out3
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