
Analog modules
5.22 Analog input module SM 431; AI 16 x 13 Bit (6ES7431-0HH00-0AB0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
289
Sensor selection data
Input range (nominal values) / input impedance
Voltage
± 1 V / 10 MΩ
± 10 V / 100 MΩ
1 to 5 V / 100 MΩ
Current
± 20 mA / 50 Ω
4 to 20 mA / 50 Ω
Permissible voltage at voltage input (destruction limit) 20 V continuous;
75 V for 1 ms (cycle factor 1 : 20)
Permissible current at current input (destruction limit) 40 mA
Connection for signal sensors
For voltage measurement
Supported
For current measurement
– As 2-wire transducer
– As 4-wire transducer
Supported
Supported
Load of the 2-wire transducer
Max. 750 Ω
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