BARTEC BENKE HYGROPHIL H 4230-12 Ex Zone II, Operating Instructions Manual, Page: 101 / 112

PROFIBUS
95
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
8.3.3 Arithmetic value channel
DaAdr (hex) Identifier Memory type Read-out Format
$20 Arithmetic values RAM read dec Float[9]
$28 Use preset T1
external
value EEPROM read/write hex Char
$29 Use preset SP value EEPROM read/write hex Char
DaAdr $20: Arithmetic value
Format: Array [1...9] of Float
All arithmetic values in the following order:
Designation Identifier Offset Unit Measurement
range
Dew point DT 0 °C 0...100 °C
Relative humidity RH 4 % 0...100%
Partial water vapour pressure VP 8 hPa 1500 hPa
Mixing ratio MH 12 g/kg 1000000 g/kg
Specific humidity SH 16 g/kg 1000 g/kg
Enthalpy H 20 kJ/kg 1000000 kJ/kg
Saturation deficit DVP 24 hPa 5000 hPa
Relative humidity due to T1
external
RH
external
28 % 0...100%
Volumetric water content in % Vol% 32 % 0...100%
DaAdr $28: Use preset T1
external
value
Format: Char
Before you can write this variable you must first change to standby mode.
0x80 = In place of a measured T1
external
value, the specified value of
DaAdr$17 preset T1
external
will be included in the calculation.
0x00 = Preset T1
external
deactivated (default)
DaAdr $29: Use preset SP value
Format: Char
Before you can write these variables you must first change to standby mode.
0x80 = In place of a measured SP value, the specified value of DaAdr$16
preset SP will be included in the calculation.
0x00 = Preset SP deactivated (default)