Measuring Methods And Measuring Ranges Of Sm 431; Ai 8 X 14 Bit - Siemens SIMATIC S7-400 Reference Manual

The following figure shows for the module the number of module cycles, in the case of a step
response, after which the smoothed analog value is applied to almost 100%, depending on
the smoothing setting. The figure applies to every change of signal at an analog input.
Signal variation in
percent
Smoothing
Figure 5-26
See also
General information about parameter assignment (Page 199)
Conversion, cycle, settling and response time of analog modules (Page 196)
5.20.3

Measuring methods and measuring ranges of SM 431; AI 8 x 14 Bit

Measuring methods
You can set the measuring method at the input channels:
● Voltage measurement
● Current measurement
● Resistance measurement
● Temperature measurement
You specify the setting by means of the measuring range modules on the module and the
"Measuring type" parameter in STEP 7.
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.20 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF10-0AB0)
Step response for any analog input signal
100
63
50
0
50
Low:
average:
high:
Step response of the SM 431; AI 8 x 14 Bit
150
100
Module cycles
Analog modules
200
249