Flag State Cause
OUT_OF_SERVICE FALSE Present Value may NOT be
written via BACnet
TRUE Present Value may be written
via BACnet
Table 25 Reliability
STATE CAUSE
0 NO_FAULT_DETECTED
1 NO_SENSOR Sensor failure detected.
2 OVER_RANGE RH over Max_Pres_Value
3 UNDER_RANGE RH under Min_Pres_Value
7 UNRELIABLE_OTHER Other measurement error
Table 26 Event State
STATE CAUSE
0 NORMAL Reliability equals 0 (NO FAULT DETECTED)
1 FAULT Reliability not 0
Out of Service
Out of Service value is writeable. By Default = FALSE.
B.4
Temperature Object
Table 27 Relative Humidity Object Properties
Property Data Type (Application
Datatype)
Writable
(Conforman
ce Code)
Value or Initial
Value
Persistence
Object_Identifier BACnetObjectIdentifier Y (R) 00 00 00 02
(hex)
Object Type = 0,
Instance = 2
Fixed
Object_Name CharacterString No (R) "T" Fixed
HMD65 User Guide M212243EN-A
64