Siemens SIMATIC S7-400 Reference Manual page 257
Automation system module
data
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● Basic conversion time
● Resolution (including overrange)
Measured value smoothing
Time constant of the input filter
Basic execution time of the module in ms (all channels
enabled)
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)
● Series-mode interference (peak value of fault <
Crosstalk between the inputs
Operational limit (throughout temperature range, relative to input range)
● Voltage input
● Current input
● Resistance measurement
Basic error limit (operational limit at 25°C, relative to input range)
● Voltage input
● Current input
● Resistance measurement
Temperature error (relative to input range)
Linearity error (relative to input range)
Repeat accuracy (in settled state at 25°C, relative to
input range)
Interrupts
Diagnostic functions
Substitute values can be connected
Input ranges (rated values)/input resistance
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.21 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
rated value of input range)
–
± 1 V
–
± 10 V
–
1 to 5 V
–
± 20 mA
–
4 to 20 mA
–
0 to 600 Ω;
–
± 1 V
–
± 10 V
–
1 to 5 V
–
± 20 mA
–
4 to 20 mA
–
0 to 600 Ω;
52 µs
14 / 14 / 14
"None - strong" configurable
15 µs
0.420
Noise suppression, error limits
> 80 dB
> 40 dB
> 70 dB
± 0.7%
± 0.9%
± 0.9%
± 0.8%
± 0.8%
± 1.0%
± 0.6%
± 0.75%
± 0.75%
± 0.7%
± 0.7%
± 0.7%
± 0.03% / K
± 0.05%
± 0.2%
Status, interrupts, diagnostics
None
None
No
Data for selecting a sensor
Analog modules
257
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