Selected measuring method
Measuring range
(type of sensor)
Measuring range module
settings
Description
TCL: Thermocouple (linear)
(temperature measurement)
Type B
Type N
Type E
Type R
Type S
Type J
Type L
Type T
Type K
Type U
A
The digitized analog values are lis‐
ted in the section "Representation
of analog values for analog input
channels" in the temperature
range.
RTD-4L: Thermal resistance
(linear, 4-wire connection)
(temperature measurement)
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
A
RTD-3L: Thermal resistance
(linear, 3-wire connection)
(temperature measurement)
Defaults
The module has the following default settings in
STEP 7:
● 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
Analog modules
5.21 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
253