Vaisala GMW90 - Manual (Page 90)

User's Guide _______________________________________________________________________
88 ___________________________________________________________________ M211659EN-B
Carbon Dioxide Object
Table 19 Carbon Dioxide Object Properties
Property Data type
(Application Type)
Writable
(Conformance Code)
Value or Initial Value Persistence
Object_Identifier BACnetObjectIdentifier No (R) 00 00 00 01 (hex)
Object Type = 0,
Instance = 1
Nonvolatile
Object_Name CharacterString No (R) "CO2" 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) "Carbon Dioxide" Nonvolatile
Units BACnetEngineeringUnits
(ENUMERATED)
No (R) 96 (parts-per-million) 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) 0.0 (same as limit for
UNDER_RANGE)
Nonvolatile
Max_Pres_Value Real No (O) 2400 (same as limit for
OVER_RANGE)
Nonvolatile
Table 20 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 1)
Table 21 Reliability
State Cause
0 NO_FAULT_DETECTED
1 NO_SENSOR No contact to measurement module
2 OVER_RANGE CO2 level over BAC_CO2_MAX_VALUE
3 UNDER_RANGE CO2 level under BAC_CO2_MIN_VALUE
7 UNRELIABLE_OTHER Other measurement error
Table 22 Event State
State Cause
0 NORMAL Reliability equals 0 (NO FAULT DETECTED)
1 FAULT Reliability not 0