Analog modules
6.6 Analog input module SM 331; AI 8 x 13 Bit;(6ES7331-1KF01-0AB0)
S7-300 Automation System Module data
6-40 Manual, 08/2006, A5E00105505-04
Principle
Wiring: Voltage measurement (0...10 V, 1..5 V, ± 5 V, ± 10 V)
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5HI
Figure 6-11 Block diagram and wiring diagram
① Transducer with voltage output (0...10 V, 1..5 V, ± 5 V, ± 10 V)
② Voltage measurement (note input impedance in the Technical data)
③ Potential compensation
④ Internal supply
⑤ + 5V from backplane bus
⑥ Logic and backplane bus interface
⑦ Electrical isolation
⑧ Multiplexer
⑨ Analog to Digital Converter (ADC)
⑩ Source of current
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