Siemens SIMATIC - Page 263

Principles of analog modules
5.1 Representation of the values for analog input channels
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
263
Table 5- 4 Unipolar input ranges
Units
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 ≥118.515 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
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
range
-4864 -17.593 1 1 1 0 1 1 0 1 0 0 0 0 0 0 0 0
-32768
≤-17.596
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Underflow
Representation of analog values in voltage measuring ranges
Table 5- 5 Representation of analog values in the ±1 V to ±10 V voltage measuring range
System
Voltage measuring range
dec
hex
±10 V
±5 V
±2.5 V
±1 V
32767
7FFF
11.851 V
5.926 V
2.963 V
1.185 V
Overflow
32512
7F00
32511
7EFF
11.759 V
5.879 V
2.940 V
1.176 V
Overshoot range
27649
6C01
27648
6C00
10 V
5 V
2.5 V
1 V
Rated range
20736
5100
7.5 V
3.75 V
1.875 V
0.75 V
1
1
361.7 µV
180.8 µV
90.4 µV
36.17 µV
0
0
0 V
0 V
0 V
0 V
-1 FFFF
-20736
AF00
-7.5 V
-3.75 V
-1.875 V
-0.75 V
-27648
9400
-10 V
-5 V
-2.5 V
-1 V
-27649
93FF
Undershoot range
-32512
8100
-11.759 V
-5.879 V
-2.940 V
-1.176 V
-32513
80FF
Underflow
-32768 8000 -11.851 V -5.926 V -2.963 V -1.185 V