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| Wiring and block diagrams of SM 331; AI 8 x 16 Bit; (6ES7331-7NF00-0AB0) Keywords: SM 331, AI, wiring diagram |
May 2008 |
The diagrams below show various wiring options.
Wiring: Voltage and current measurement
Wire the voltage inputs of the channel voltage in parallel using the corresponding shunt resistor when measuring current. Bridge the channel input terminals with the adjacent connector terminals.
Example: You configure channel 0 for current measurement by bridging terminals 22 and 2, and terminals 23 to 3.
At the channel configured for current measurements, connect the shunt resistor to the adjacent channel terminals in order to achieve the specified precision.
Figure: Wiring and block diagrams
Description
- Voltage measurement
- Backplane bus interface
- Electrical isolation
- Analog to Digital Converter (ADC)
- Equipotential bonding
Wiring: 2-wire and 4-wire transducer
Figure: Wiring and block diagrams
Description
- Backplane bus interface
- Electrical isolation
- Analog to Digital Converter (ADC)
- Channel 0 for 4-wire transducer
- Channel 7 for 2-wire transducer (with external supply)
- Equipotential bonding
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