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
5-5
Table 5-7 Representation of analog values in the 1 V to 5 V and 0 V to 10 V voltage measuring ranges
System Voltage measuring range
dec hex 1 to 5 V 0 to 10 V
32767 7FFF 5.741 V 11.852 V
32512 7F00
Overflow
32511 7EFF 5.704 V 11.759 V
27649 6C01
Overshoot range
27648 6C00 5 V 10 V
20736 5100 4 V 7.5 V
1 1 1 V + 144.7 µV 0 V + 361.7 µV
0 0 1 V 0 V
Nominal range
-1 FFFF
-4864 ED00 0.296 V
Undershoot range
-4865 ECFF
-32768 8000
Negative values are not
supported
Underflow
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
27649 6C01
Overshoot range
27648 6C00 20 mA 10 mA 3.2 mA
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
Nominal range
-27649 93FF
-32512 8100 -23.52 mA -11.76 mA -3.76 mA
Undershoot range
-32513 80FF
-32768 8000 -23.70 mA -11.85 mA -3.79 mA
Underflow