Analog value representation
4.2 Analog value representation for measuring range with SIMATIC S7
2AI TC HF analog electronic module (6ES7134-4NB01-0AB0)
18
Manual, 04/2007, A5E01076892-01
Output value
The following table shows the representation of the binary analog values and the
corresponding decimal and hexadecimal representation of the units of the analog values.
The table below shows the resolutions 11, 12, 13, and 15 bit + sign. Each analog value is
entered left aligned in the ACCU. The bits marked with "x" are set to "0".
Table 4-2
Output values (SIMATIC S7 format)
Units
Analog value
Resolution in bits
Decimal
Hexadecimal
High byte
Low byte
11+S
16
10
H
S 0 0 0 0 0 0 0
0 0 1 x x x x
12+S
8
8
H
S 0 0 0 0 0 0 0
0 0 0 1 x x x
13+S
4
4
H
S 0 0 0 0 0 0 0
0 0 0 0 1 x x
15 + sign
1
1
H
S 0 0 0 0 0 0 0
0 0 0 0 0 0 1
