Analog Input Module Sm 431; Ai 8 X 14 Bit (6Es7431-1Kf20-0Ab0); Features - Siemens SIMATIC S7-400 Reference Manual

Selected measuring method
TCL: Thermocouple (linear)
(temperature measurement)
RTD-4L: Thermal resistance
(linear, 4-wire connection)
(temperature measurement)
RTD-3L: Thermal resistance
(linear, 3-wire connection)
(temperature measurement)
Defaults
The module has the following default settings in
● Channels 0 to 7: "Voltage" measuring method ; "± 10 V" measuring range
You can use these measuring methods and measuring ranges without configuring the SM 431;
AI 8 x 14 Bit in STEP 7.
5.21

Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)

5.21.1

Features

Overview
SM 431; AI 8 x 14 bit has the following features:
● Rapid A/D change, therefore highly suited to highly dynamic processes
● 8 inputs for voltage/current measurement
● 4 inputs for resistance measurement
● Various measuring ranges, adjustable in parallel
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.21 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
Measuring range
(type of sensor)
Type B
Type N
Type E
Type R
Type S
Type J
Type L
Type T
Type K
Type U
Pt 100 Climatic
Pt 200 Climatic
Pt 500 Climatic
Pt 1000 Climatic
Ni 100 Climatic
Ni 1000 Climatic
Pt 100 Standard
Pt 200 Standard
Pt 500 Standard
Pt 1000 Standard
Ni 100 Standard
Ni 1000 Standard
Measuring range module
settings
A
A
STEP 7 :
Analog modules
Description
The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the temperature
range.
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