Siemens Simatic S7-400 User Manual
Page 338
Analog Modules
5-122
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
5.23
Analog Input Module SM 431; AI 8
RTD
16 Bit;
(6ES7 431-7KF10-0AB0)
Characteristics
The analog input module SM 431; AI 8
RTD
16 Bit has the following features:
•
8 differential inputs for the resistance thermometer
•
Resistance thermometer can be parameterized
•
Linearization of the resistance thermometer characteristic curves
•
16-bit resolution
•
Update rate of 25 ms for 8 channels
•
Programmable diagnostics
•
Programmable diagnostic interrupt
•
Programmable hardware interrupt when limit has been exceeded
•
Analog section isolated from CPU
•
The maximum permissible common mode voltage between the channel and the
central ground point is 120 VAC
Calibration Software
The analog input module AI 8 x RTD x 16 Bit; (6ES7431-7KF10-0AB0) is delivered
with the software “S7-400 RTD User Calibration” on two diskettes. After installing
the software, you can define user-specific calibration values for each channel and
and each module input range. You will find further information under ID 12436891
at the Customer Support FAQ site.