
Analog modules
5.23 Analog input module SM 431; AI 16 x 16 Bit (6ES7431-7QH00-0AB0)
S7-400 Automation System Module Data
308 Reference Manual, Edition 09/2009, A5E00850736-06
Measuring ranges
You set the measuring ranges by means of the measuring range modules on the module
and the "Measuring type" parameter in STEP 7.
Table 5- 66 Measuring ranges of the SM 431; AI 16 x 16 Bit
Selected measuring method Measuring range
(type of sensor)
Measuring range module
settings
Description
V: Voltage ± 25 mV
± 50 mV
± 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 listed in the section
"Representation of analog
values for analog input
channels" in the voltage
measuring range.
2DMU: Current (2-wire
sensor)
4 to 20 mA D To supply these transducers
with current you must
connect 24 V to the L+ and
M front connector terminals.
The digitized analog values
are listed in the section
"Representation of analog
values for analog input
channels" in the current
measuring range.
4DMU: Current (4-wire
sensor)
± 5 mA
± 10 mA
0 to 20 mA
4 to 20 mA
± 20 mA
C The digitized analog values
are listed in the section
"Representation of analog
values for analog input
channels" in the current
measuring range.
R-3L: Resistance
(3-conductor connection)
300 Ω
600 Ω
6000 Ω
(maximum 5000 Ω)
R-4L: Resistance
(4-conductor connection)
48 Ω
150 Ω
300 Ω
600 Ω
6000 Ω
(maximum 5000 Ω)
A The digitized analog values
are listed in the section
"Representation of analog
values for analog input
channels" in the resistance
measuring range.
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