Siemens Simatic S7-1500 - Terminal and Block Diagram of the Analog On-Board I;O

Representation of analog values
C.1 Representation of input ranges
Analog Input Module AI 8xU/R/RTD/TC HF (6ES7531-7PF00-0AB0)
72 Manual, 09/2016, A5E36647959-AB
C.1
Representation of input ranges
The tables below set out the digitized representation of the input ranges separately for
bipolar and unipolar input ranges. The resolution is 16 bits.
Table C- 2 Bipolar input ranges
Dec.
value
Measured
value in %
Data word
Range
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
32767 >117.589 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Overflow
32511
117.589
0
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
Overshoot
range
27649
100.004
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
1
27648
100.000
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
Rated range
1
0.003617
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0.000
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-1
-0.003617
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-27648
-100.000
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
-27649
-100.004
1
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
Undershoot
range
-32512
-117.593
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
-32768
<-117.593
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Underflow
Table C- 3 Unipolar input ranges
Dec.
value
Measured
value in %
Data word
Range
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
32767
>117.589
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Overflow
32511
117.589
0
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
Overshoot
range
27649
100.004
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
1
27648
100.000
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0.003617
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Rated range
0
0.000
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-1
-0.003617
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Undershoot
range
-4864
-17.593
1
1
1
0
1
1
0
1
0
0
0
0
0
0
0
0
-32768
<-17.593
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Underflow