Relative Humidity Object - HMD60 - HMD65

HMD65 User Guide
Product status
Document code
M212243EN
Revision
C
ft:locale
en-US
Product
HMD60
HMD65
Document type
User guide
Table 1. Relative Humidity Object Properties
Property Data Type (Application Datatype) Writable (Conformance Code) Value or Initial Value Persistence
Object_Identifier BACnetObjectIdentifier No (R)

00 00 00 01 (hex)

Object Type = 0,

Instance = 1

 Fixed
Object_Name CharacterString No (R) "RH" Fixed
Object_Type BACnetObjectType (ENUMERATED) No (R) 0 (Analog Input) Fixed
Present_Value Real Yes (When Oos) (R) 0.0 Volatile
Description CharacterString No (O) "Relative Humidity" Fixed
Units BACnetEngineeringUnits (ENUMERATED) No (R) 29 (percent-relative-humidity) 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) 0.0 (same as limit for Minimum RH error limit: see Configuring Minimum and Maximum RH and T Errors with Insight) Fixed
Max_Pres_Value Real No (O) 100.0 (same as limit for Maximum RH error limit: see Configuring Minimum and Maximum RH and T Errors with Insight) Fixed
Table 2. 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 3. 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 4. 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.