
Analog modules
5.19 Analog input module SM 431; AI 8 x 13 Bit (6ES7431-1KF00-0AB0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
253
Sensor selection data
Input range (nominal values) / input impedance
Voltage
± 1 V / 200 kΩ
± 10 V / 200 kΩ
1 to 5 V / 200 k Ω
Current
± 20 mA / 80 Ω
4 to 20 mA / 80 Ω
Resistance
0 to 600 Ω; of use up to 500 Ω
Permissible current at current input (destruction limit) 40 mA continuous
Connection for signal sensors
For voltage measurement
Supported
For current measurement
– As 2-wire transducer
– As 4-wire transducer
Supported; with external transducer supply
Supported
For resistance measurement
– With 2-conductor connection
– With 3-conductor connection
– With 4-conductor connection
Supported: cable resistances are also
measured
Supported
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