Siemens Simatic S7-400 - Page 252

Measuring ranges
Set the measuring ranges using the measuring range modules, and at the "measuring method"
parameter in
STEP 7 .
Table 5-52 Measuring ranges of the SM 431; AI 8 x 14 Bit (6ES7431-1KF10-0AB0)
Selected measuring method Measuring range
(type of sensor)
Measuring range module
settings
Description
V: Voltage ± 80 mV
± 250 mV
± 500 mV
± 1 V
± 2.5 V
± 5 V
1 to 5 V
± 10 V
A The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the voltage measur‐
ing range.
2DMU: Current
(2-wire transducer)
4 to 20 mA D To supply these transducers with
current you must connect 24 V to
the L+ and M front connector ter‐
minals.
The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the current measur‐
ing range.
4DMU: Current
(4-wire transducer)
0 mA to 20 mA
4 mA to 20 mA
± 20 mA
C The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the current measur‐
ing range.
R-4L: Resistance
(4-conductor connection)
48 Ω
150 Ω
300 Ω
600 Ω
6000 Ω
A The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the resistance meas‐
uring range.
R-3L: Resistance
(3-conductor connection)
300 Ω
600 Ω
6000 Ω
Analog modules
5.20 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF10-0AB0)
S7-400 Automation System Module Data
252 Reference Manual, Ausgabe 11/2016, A5E00850736-08