Analog Inputs - Siemens Simatic M7-400 Reference Manual
Programmable controllers module specifications
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13.7.10
Analog Value Representation for the Measuring Ranges of the
Analog Inputs
Voltage and Current Measuring Ranges
Table 13-43 contains the representation of the digitized measured value for
• The voltage measuring range ± 10 V and
• The current measuring range ± 20 mA.
Table 13-43
Representation of the Digitized Measured Value for the Analog Input Function (Voltage and
Current Measuring Range)
Measured
Measured
Range
Range
Value in %
≤( 118.51
Overflow
117.589
:
Overrange
100.004
100
:
Nominal
0
range
:
-100
-100.004
Underrange
:
-117.59
≥-118.51
Underflow
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Units
Hexadecimal "10 V
Decimal
32767
7FFF
H
32511
7EFF
H
:
:
27649
6C01
H
27648
6C00
H
:
:
0
0
H
:
:
-27648
9400
H
-27649
93FF
H
:
:
-32512
8100
H
-32768
8000
H
Interface Submodules
Measuring Range Measuring Range
"20 mA
≤(11.851 V
≤( 23.7 mA
11.7589 V
23.515 mA
:
10.0004 V
20.001 mA
10 V
:
0 V
:
-10 V
-10.0004 V
-20.001 mA
:
-11.759 V
-23.516 mA
≥-11.851 V
≥-23.7 mA
:
20 mA
:
0 mA
:
-20 mA
:
13-51
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