Siemens SIMATIC S7-400 Reference Manual page 233

● 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 0 to 500 Ω;
Basic error limit (operational limit at 25°C, relative to input range)
● Voltage input
● Current input
● Resistance measurement 0 to 500 Ω; 4-wire
Temperature error (relative to input range)
● in resistance measuring range
● In all other measuring ranges
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 range (rated values) / input resistance
● Voltage
● Current
● Resistance
Permissible input current for current input (destruction
limit)
Sensor connection
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.19 Analog input module SM 431; AI 8 x 13 Bit (6ES7431-1KF00-0AB0)
< rated value of input range)
– ± 1 V
– ± 10 V
– 1 to 5 V
– ± 20 mA
– 4 to 20 mA
4-wire measurement (at around 600 Ω)
– ± 1 V
– ± 10 V
– 1 to 5 V
– ± 20 mA
– 4 to 20 mA
measurement (at around 600 Ω)
> 40 dB
> 50 dB
± 1.0%
± 0.6%
± 0.7%
± 1.0%
± 1.0%
± 1.25%
± 0.7%
± 0.4%
± 0.5%
± 0.7%
± 0.7%
± 0.8%
± 0.02 % / K
± 0.007 % / K
± 0.05%
± 0.1%
Status, interrupts, diagnostics
None
None
No
Data for selecting a sensor
± 1 V / 200 kΩ
± 10 V / 200 kΩ
1 to 5 V / 200 kΩ
± 20 mA / 80 Ω
4 to 20 mA / 80 Ω
0 to 600 Ω; can be used up to 500 Ω
Constant 40 mA
Analog modules
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