PROFIBUS
105
Operating Instructions HYGROPHIL® H 4230-10 Serie A BA 030520
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)
Содержание HYGROPHIL H 4230-10 A Series
Страница 2: ......
Страница 51: ...Installation 45 Operating Instructions HYGROPHIL H 4230 10 Serie A BA 030520...
Страница 122: ...Operating Instructions HYGROPHIL H 4230 10 Serie A BA 030520...