User's Guide _______________________________________________________________________
90 ___________________________________________________________________ M211399EN-G
Temperature Object
Table 28
Temperature Object Properties
Property
Data type
(Application Type)
Writable
(Conformance
Code)
Value or Initial Value
Persistence
Object_Identifier
BACnetObjectIdentifier
No (R)
00 00 00 03 (hex)
Object Type = 0,
Instance = 3
Nonvolatile
Object_Name
CharacterString
No (R)
"T"
Nonvolatile
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"
Nonvolatile
Units
BACnetEngineeringUnits
(ENUMERATED)
Yes (R)
62 (degrees-Celsius)
Possible units are
C (62) or F (64).
Nonvolatile
Status_Flags
BACnet Status Flags (BIT
STRING)
Yes (when OoS)
(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
UNDER_RANGE)
Nonvolatile
Max_Pres_Value Real
No (O)
+80.0 (same as limit for
OVER_RANGE)
Nonvolatile
Table 29
Status Flags
Flag
State
Cause
IN_ALARM
FALSE
Event State equals 0 (NORMAL)
TRUE
Event State not 0
FAULT
FALSE
Reliability equals 0 (NO FAULT DETECTED)
TRUE
Reliability not 0
OVERRIDDEN
FALSE
Always FALSE
OUT_OF_SERVICE
FALSE
Present Value may NOT be written via BACnet
TRUE
Present Value may be written via BACnet
Table 30
Reliability
State
Cause
0 NO_FAULT_DETECTED
1 NO_SENSOR
No contact to measurement module
2 OVER_RANGE
T over +80 °C
3 UNDER_RANGE
T under -40 °C
7 UNRELIABLE_OTHER
Other measurement error
Table 31
Event State
State
Cause
0 NORMAL
Reliability equals 0 (NO FAULT DETECTED)
1 FAULT
Reliability not 0
