Siemens SIMATIC - Page 265

Principles of analog modules
5.1 Representation of the values for analog input channels
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
265
Representation of analog values in the current measuring ranges
Table 5- 8 Representation of analog values in the ±3.2 mA to ±20 mA current measuring ranges
System
Current measuring range
dec
hex
±20 mA
±10 mA
±3.2 mA
32767 7FFF 23.70 mA 11.85 mA 3.79 mA Overflow
32512
7F00
32511
7EFF
23.52 mA
11.76 mA
3.76 mA
Overshoot range
27649
6C01
27648
6C00
20 mA
10 mA
3.2 mA
Rated range
20736
5100
15 mA
7.5 mA
2.4 mA
1
1
723.4 nA
361.7 nA
115.7 nA
0
0
0 mA
0 mA
0 mA
-1
FFFF
-20736
AF00
-15 mA
-7.5 mA
-2.4 mA
-27648
9400
-20 mA
-10 mA
-3.2 mA
-27649
93FF
Undershoot range
-32512
8100
-23.52 mA
-11.76 mA
-3.76 mA
-32513
80FF
Underflow
-32768
8000
-23.70 mA
-11.85 mA
-3.79 mA
Table 5- 9 Representation of analog values in the 0 mA to 20 mA and 4 mA to 20 mA current measuring ranges
System
Current measuring range
dec
hex
0 mA to 20 mA
4 mA to 20 mA
32767
7FFF
23.70 mA
22.96 mA
Overflow
32512
7F00
32511
7EFF
23.52 mA
22.81 mA
Overshoot range
27649
6C01
27648
6C00
20 mA
20 mA
Rated range
20736 5100 15 mA 16 mA
1
1
723.4 nA
4 mA + 578.7 nA
0 0 0 mA 4 mA
-1
FFFF
Undershoot range
-4864
ED00
-3.52 mA
1.185 mA
-4865
ECFF
Underflow
-32768
8000