Siemens SIMATIC S7-400 Reference Manual page 293

Calibration software
The calibration software is only available over the Internet. You will find the latest version of
the calibration software under entry ID 12443337.
Following the installation of this software, you can specify user-specific calibration values for
each channel and each input range. Further information can be found under ID 12436891 on
the Customer Support FAQ page.
Circuit diagram for SM 431; AI 8 x RTD x 16 bit
SO+0
SE+0
SE-0
AGND CH0
CH1
CH2
CH3
CH4
CH5
CH6
SO+7
SE+7
SE-7
AGND
CH7
Figure 5-35 Circuit diagram for SM 431; AI 8 x RTD x 16 bit
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.24 Analog input module SM 431; AI 8 x RTD x 16 Bit (6ES7431-7KF10-0AB0)
Electrical
isolation
A/Dconverter
Internal
power supply
Backplane
bus
Bus S7-400
interface
Analog modules
293