Modbus register assignment of the ISOMETER®
55
isoMIL425_D00203_03_M_XXEN/03.2019
8.1.2.3
R&U = Range and unit
The units of bits 0 to 4 are coded.
Bits 6 and 7 describe the validity range of a value.
Bit 5 is reserved.
The complete byte is calculated from the sum of the unit and the range of
validity.
Bit
7
6
5
4
3
2
1
0
Meaning
Un
it
-
-
-
0
0
0
0
0
Invalid (init)
-
-
-
0
0
0
0
1
No unit
-
-
-
0
0
0
1
0
Ω
-
-
-
0
0
0
1
1
A
-
-
-
0
0
1
0
0
V
-
-
-
0
0
1
0
1
%
-
-
-
0
0
1
1
0
Hz
-
-
-
0
0
1
1
1
Baud
-
-
-
0
1
0
0
0
F
-
-
-
0
1
0
0
1
H
-
-
-
0
1
0
1
0
°C
-
-
-
0
1
0
1
1
°F
-
-
-
0
1
1
0
0
Second
-
-
-
0
1
1
0
1
Minute
-
-
-
0
1
1
1
0
Hour
-
-
-
0
1
1
1
1
Day
-
-
-
1
0
0
0
0
Month
Ra
n
g
e
o
f v
a
li
d
ity
0
0
X
X
X
X
X
X
Actual value
0
1
X
X
X
X
X
X
The actual value is lower
1
0
X
X
X
X
X
X
The actual value is higher
1
1
X
X
X
X
X
X
Invalid value