Property Data Type (Application
Datatype)
Writable
(Conforman
ce Code)
Value or Initial
Value
Persistence
Object_Type BACnetObjectType
(ENUMERATED)
No (R) 0 (Analog Input) Fixed
Present_Value Real Yes (When
Oos) (R)
0.0 Volatile
Description CharacterString No (O) "Temperature" Fixed
Units BACnetEngineeringUni
ts (ENUMERATED)
Yes (R) 62 (degrees-
Celsius)
Nonvolatile
Status_Flags BACnet Status Flags
(BIT STRING)
No (R) 0 (FAULT ==
FALSE)
Volatile
Reliability BACnet Reliability
(ENUMERATED)
Yes (when
OoS) (O)
0 (NO FAULT
DETECTED)
Volatile
Event State BACnetEventState
(ENUMERATED)
No (R) 0 (NORMAL) Volatile
Out_of_Service BOOLEAN Yes (R) 0 (FALSE) Volatile
COV_Increment Real Yes (O) NaN (COV
reporting
disabled)
Nonvolatile
Min_Pres_Value Real No (O) -40.0 (same as
limit for Minimum
T error limit: see
Configuring
Minimum and
Maximum RH and
T Errors with
Insight (page 22))
Fixed
Max_Pres_Value Real No (O) +80.0 (same as
limit for Maximum
T error limit: see
Configuring
Minimum and
Maximum RH and
T Errors with
Insight (page 22))
Fixed
Table 28 Status Flags
Flag State Cause
IN_ALARM FALSE Event State equals 0
(NORMAL)
TRUE Event State not 0
Appendix B – BACnet Reference
65