Siemens Simatic S7-300

Representation of the analog values of analog modules
5.1 Representation of the analog values of analog input channels
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
5-3
Binary representation of input ranges
Table 5-3 Bipolar 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
27649 >100.004 0 1 1 0 1 1 0 0 0 0 0 0 0 0 0 1
Overshoot
range
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
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
Nominal
range
-27649 ≤-100.004 1 0 0 1 0 0 1 1 1 1 1 1 1 1 1 1
-32512 -117.593 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
Undershoot
range
-32768 ≤-117.596 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Underflow
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
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
Overshoot
range
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
Nominal
range
-1 -0.003617 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
-4864 -17.593 1 1 1 0 1 1 0 1 0 0 0 0 0 0 0 0
Undershoot
range
range
-32768 ≤-17.596 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Underflow