Analog Inputs - Siemens Simatic M7-400 Reference Manual

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