Siemens Simatic S7-400 - Page 257

● Basic conversion time
52 µs
● Resolution (including overrange)
14 / 14 / 14
Measured value smoothing "None - strong" configurable
Time constant of the input filter 15 µs
Basic execution time of the module in ms (all channels
enabled)
0.420
Noise suppression, error limits
Interference voltage suppression for f = nx (f1 ±1%), (f1 = interference frequency) n = 1, 2 , ...
Filter 400 / 60 / 50 Hz configured
● Common mode interference (UCM < 11 Vss)
> 80 dB
● Series-mode interference (peak value of fault <
rated value of input range)
> 40 dB
Crosstalk between the inputs > 70 dB
Operational limit (throughout temperature range, relative to input range)
● Voltage input
– ± 1 V
– ± 10 V
– 1 to 5 V
± 0.7%
± 0.9%
± 0.9%
● Current input
– ± 20 mA
– 4 to 20 mA
± 0.8%
± 0.8%
● Resistance measurement
– 0 to 600 Ω;
± 1.0%
Basic error limit (operational limit at 25°C, relative to input range)
● Voltage input
– ± 1 V
– ± 10 V
– 1 to 5 V
± 0.6%
± 0.75%
± 0.75%
● Current input
– ± 20 mA
– 4 to 20 mA
± 0.7%
± 0.7%
● Resistance measurement
– 0 to 600 Ω;
± 0.7%
Temperature error (relative to input range) ± 0.03% / K
Linearity error (relative to input range) ± 0.05%
Repeat accuracy (in settled state at 25°C, relative to
input range)
± 0.2%
Status, interrupts, diagnostics
Interrupts None
Diagnostic functions None
Substitute values can be connected No
Data for selecting a sensor
Input ranges (rated values)/input resistance
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, A5E00850736-08 257