Data Sheet

Data sheet 6ES7431-1KF20-0AB0
SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 14
bit, U/IResistor 8 AI, cycle time 0.416 ms
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. 1000mA
Power loss
Power loss, typ. 4.9W
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)
6ES7431-1KF20-0AB0 Subject to change without notice
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09/13/2019 © Copyright Siemens

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