Vaisala HMW90 - Manual (Page 100)

User's Guide _______________________________________________________________________
98 ___________________________________________________________________ M211399EN-F
Operation Pressure Object
User can set current atmospheric pressure to improve the calculation
accuracy of pressure dependent humidity parameters.
Table 33 Operation Pressure Object Properties
Property Data type Writable Value or Initial Value
Object Identifier BACnet Object Identifier No 00 80 00 01 (hex)
Object Type = 2,
Instance = 1
Object Name Character String No "OPER P"
Object Type BACnet Object Type No 2 (Analog Value)
Present Value Real Yes 1013.25
Description Character String No "Operation Pressure"
Units BACnet Engineering Units No 133 (hectopascals)
Status Flags BACnet Status Flags No 0 (FAULT == FALSE)
Event State BACnet Event State No 0 (NORMAL)
Out of Service BOOLEAN No 0 (FALSE)
Present Value
Two pressure related objects (Pressure and Altitude) are linked together.
If Present Value in object is changed by user, Present Value in another
object is changed accordingly.
Status Flags
Table 34 Status Flags
Flag State Cause
IN_ALARM FALSE Always FALSE
FAULT FALSE Always FALSE
OVERRIDDEN FALSE Always FALSE
OUT_OF_SERVICE FALSE Always FALSE
Event State
Event State value is always NORMAL.
Out of Service
Out of Service value is not writeable.