
Analog modules
5.4 Representation of analog values
S7-400 Automation System Module Data
202 Reference Manual, Edition 09/2009, A5E00850736-06
Table 5- 32 Unipolar output ranges
Units Output
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
≧3251
2
0 % 0 1 1 1 1 1 1 1 x x x x x x x x 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
Nominal
range
- 1 0,000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
-
32512
1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
Limited to
the low limit
of the
nominal
range, 0 V
or 0 mA
≤ 3251
3
0 % 1 0 0 0 0 0 0 0 x x x x x x x x Underflow
Table 5- 33 Life-zero input ranges
Units Output
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
≧3251
2
0 % 0 1 1 1 1 1 1 1 x x x x x x x x 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
Nominal
range
- 1 -
0,003617
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
- 6912 -25,000 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0
Undershoot
range
- 6913
-25,000
1 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1
-
32512
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Limited to
overshoot
range lower
limit 0 V
and 0 mA
≤-
32513
- 25 % 1 0 0 0 0 0 0 0 x x x x x x x x Underflow
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