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2026-10-10Why there is no data output from sensor?

  1. Verify supply voltage and output mode according to sensor label; wire corresponding interface and use correct protocol.

  2. Use multimeter to confirm stable power supply.

  3. Configure serial port parameters: correct slave address (general protocol default 00; Modbus default 01), correct baud rate (default 9600), and confirm correct COM port in device manager.

  4. Replace serial cable or sensor for cross‑validation test.


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