Siemens ET 200S Manual page 363

Table 12-3 Measured-Value Resolution of the Analog Values (SIMATIC S7 Format)
Resolution in Bits
11+ sign (S)
12 + sign (S)
13 + sign (S)
15 + sign (S)
Note: This resolution does not apply to temperature values. The converted
temperature values are the result of a conversion in the analog electronic module
(see Table 12-3).
Note
The following applies to temperature measurements: In the overrange and
underrange, the gradient of the characteristic curve at the point where the
linearized rated range is left is retained.
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Units
Decimal Hexadec.
16 10
H
8 8
H
4 4
H
1 1
H
Analog Electronic Modules
Analog Value
High byte
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
Low byte
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 0 1
12-7