Possible Analog Value Resolutions - Siemens SIMATIC S7-300 Reference Manual
Programmable logic controllers module data
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Measured-value resolution
The resolution of the analog values may differ, depending on the analog module
and its parameterization. With resolutions < 15 bits, the bits indicated by "x" are set
to "0".
Note: This resolution does not apply to temperature values. The converted
temperature values are the result of a conversion in the analog module (see Tables
4-16 to 4-31).
Table 4-7
Possible analog value resolutions
Resolution
in bits (+ sign)
in bits (+ sign)
8
9
10
11
12
13
14
15
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Units
decimal
hexadecimal
128
80
H
64
40
H
32
20
H
16
10
H
8
8
H
4
4
H
2
2
H
1
1
H
Analog value
High-Order Byte
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Analog Modules
Low-Order Byte
1 x x x x x x x
0 1 x x x x x x
0 0 1 x x x x x
0 0 0 1 x x x x
0 0 0 0 1 x x x
0 0 0 0 0 1 x x
0 0 0 0 0 0 1 x
0 0 0 0 0 0 0 1
4-11
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