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SIMATIC S7-400 SM 431, AI U/I/R 8x14 bit
SKU: 6ES7431-1KF10-0AB0
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Short Description
Description:
SIMATIC S7-400 with analog input SM 431, isolated 8 AI, 14 bit resolution, U / I/ Resistor / Thermocouple / Pt100.
Supply voltage:
Load voltage L+:
Rated value (DC): 24 V; Only required for supplying 2-wire transmitters.
Reverse polarity protection: Yes.
Input current:
from load voltage L+ (without load), max.: 200 mA; for 8 connected, fully controlled 2-wire transmitters.
from backplane bus 5 V DC, max.: 600 mA.
Power loss:
Power loss, typ.: 3.5 W.
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Analog inputs:
Number of analog inputs: 8.
For voltage/current measurement: 8.
For resistance measurement: 4.
permissible input voltage for voltage input (destruction limit), max.: 18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20).
permissible input current for current input (destruction limit), max.: 40 mA; Permanent.
Constant measurement current for resistance-type transmitter, typ.: 1.67 mA.
Input ranges:
Voltage: Yes.
Current: Yes.
Thermocouple: Yes.
Resistance thermometer: Yes.
Resistance: Yes.
Cable length:
shielded, max.: 200 m; 50 m with thermocouples and input ranges ≤ 80 mV.
Analog value generation for the inputs:
Integration and conversion time/resolution per channel:
Resolution with overrange (bit including sign), max.: 14 bit; with activated filtering: 16 bit.
Integration time, parameterizable: Yes.
Basic conversion time (ms): 20.1 / 23.5 ms.
Integration time (ms): 16,7 / 20 ms.
Interference voltage suppression for interference frequency f1 in Hz: 50 / 60 Hz.
Basic execution time of the module (all channels released): 161 ms; 161 / 188 ms.
Encoder:
Connection of signal encoders:
for voltage measurement: Yes; possible.
for current measurement as 2-wire transducer: Yes.
for current measurement as 4-wire transducer: Yes.
for resistance measurement with two-wire connection: Yes; Line resistances are also measured.
for resistance measurement with three-wire connection: Yes.
for resistance measurement with four-wire connection: Yes.
Interrupts/diagnostics/status information:
Diagnostics function: No.
Potential separation:
Potential separation analogue inputs:
Potential separation analogue inputs: Yes; internal/external.
between the channels: No.
between the channels and backplane bus: Yes.
Between the channels and load voltage L+: Yes.
Isolation:
Isolation tested with: 2 120 V DC between bus and L+/M; 2 120 V DC between bus and analogue section; 500 V DC between bus and local ground; 500 V DC between analogue section and L+/M; 2 120 V DC between analogue section and local ground; 2 120 V DC between L+/M and local ground.
Dimensions:
Width: 25 mm.
Height: 290 mm.
Depth: 210 mm.
Weights:
Weight, approx.: 500 g.