BARTEC BENKE HYGROPHIL F 5673, Operating Manual, Page: 115 / 129

Bus systems
8-3
HYGROPHIL® F 5673 Operating manual, Software version 1.8.x, 387896MDHEN(14.06.2013)
Function code „03“ answers with registers of measurement variables and
parameters as showed in Table 2 . The field 60-79 represent states and error
codes. Special measurement variables need a more detailed resolution.
Therefore some variables are spanned over two 16-bit registers (such val-
ues are marked with HI and LO in the 16-/32- bit column).
Request Host
Function code 1 byte 0x03
Start address 2 bytes 0 to 79
Number of registers 2 bytes 1 to 80
Response HYGROPHIL
®
F
Function code 1 byte 0x03
Number of bytes 1 byte Number of transmitted registers multi-
plied with 2
Values of registers Number of transmitted registers x 2 bytes
The values in the holding registers are spread to the available range.
A
16 bit value has a range of values 0 ... 65535 .
Register 4, dewpoint channel 1 is between -100 °C and +100 °C.
-100 °C correlates
0 (min)
+100 °C correlates 65535 (max)
The conversion is as follows:
When HYGROPHIL for the dewpoint at channel 1 reports the register value
12345, results:
Conversion of
32 bit values is analogous.
The range of values is here 0 ... 4294967295 .
Register value

(max – min)
65535
+ min = value
12345

100 –(-100)
65535
+ (-100) = 62,32 °C