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Siemens 6ES7431-1KF00-0AB0

SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 13 bit, U/IResistor

SiemensMFR # 6ES7431-1KF00-0AB0SKU # CEY-937FC77FD5E1

Rated value (DC)not necessary

from backplane bus 5 V DC, max.350 mA

Power loss, typ.1.8 W

Number of analog inputs8

For voltage/current measurement8

For resistance measurement4

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About This Product

SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 13 bit, U/IResistor

Siemens 6ES7431-1KF00-0AB0

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
Equivalent and alternative product suggestions
Quotation and lead time tailored to your request

Specifications

Load voltage L+

Rated value (DC)not necessary

Input current

from backplane bus 5 V DC, max.350 mA

Power loss

Power loss, typ.1.8 W

Analog inputs

Number of analog inputs8

For voltage/current measurement8

For resistance measurement4

permissible input voltage for voltage input (destruction limit), max.50 V

permissible input current for current input (destruction limit), max.50 mA; 40 mA continuous

Constant measurement current for resistance-type transmitter, typ.1.67 mA

Input ranges

VoltageYes

CurrentYes

ThermocoupleNo

Resistance thermometerNo

ResistanceYes

Input ranges (rated values), voltages

1 V to 5 VYes

— Input resistance (1 V to 5 V)200 kΩ

-1 V to +1 VYes

— Input resistance (-1 V to +1 V)200 kΩ

-10 V to +10 VYes

— Input resistance (-10 V to +10 V)200 kΩ

Input ranges (rated values), currents

-20 mA to +20 mAYes

— Input resistance (-20 mA to +20 mA)80 Ω

4 mA to 20 mAYes

— Input resistance (4 mA to 20 mA)80 Ω

Input ranges (rated values), resistors

0 to 600 ohmsYes

— Input resistance (0 to 600 ohms)usable up to 500 ohms

Cable length

shielded, max.200 m

Integration and conversion time/resolution per channel

Resolution with overrange (bit including sign), max.13 bit

Integration time, parameterizableYes

Basic conversion time (ms)23 / 25 ms

Integration time (ms)16,7 / 20 ms

Interference voltage suppression for interference frequency f1 in Hz50 / 60 Hz

Basic execution time of the module (all channels released)200 ms; 184 / 200 ms

Connection of signal encoders

for voltage measurementYes; possible

for current measurement as 2-wire transducerYes; with external transmitter supply

for current measurement as 4-wire transducerYes

for resistance measurement with two-wire connectionYes; Line resistances are also measured

for resistance measurement with three-wire connectionYes; Line resistances are also measured

for resistance measurement with four-wire connectionYes

Errors/accuracies

Temperature error (relative to input range), (+/-)0.02 %/K; ±0.02 %/K in impedance measuring range; ±0.007 % in all other measuring ranges

Operational error limit in overall temperature range

Voltage, relative to input range, (+/-)1 %; ±1.0 % at ±1 V; ±0.6 % at ±10 V; ±0.7 % at 1 to 5 V

Current, relative to input range, (+/-)1 %; at ±20 mA, 4 to 20 mA

Resistance, relative to input range, (+/-)1.25 %; 0 to 500 ohms (4-conductor measurement, in range of 600 ohms)

Basic error limit (operational limit at 25 °C)

Voltage, relative to input range, (+/-)0.7 %; 0.7% at ±1 V; 0.4% at ±10 V; 0.5% at 1 to 5 V

Current, relative to input range, (+/-)0.7 %; at ±20 mA, 4 to 20 mA

Resistance, relative to input range, (+/-)0.8 %; 0 to 500 ohms (4-conductor measurement, in range of 600 ohms)

Interrupts/diagnostics/status information

Diagnostics functionNo

Potential separation analog inputs

Potential separation analog inputsYes; internal/external

between the channelsNo

between the channels and backplane busYes

Isolation

Isolation tested with2 120 V DC between bus and analog part; 500 V DC between bus and local ground; 2 120 V DC between analog part and local ground

Dimensions

Width25 mm

Height290 mm

Depth210 mm

Weights

Weight, approx.500 g

Accessories 1

Genuine accessories that can be used with the Siemens 6ES7431-1KF00-0AB0 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.