1. The power-on indicator is on but the PC software cannot connect to the module:
In general, check the following key points when encountering this problem
l 485 communication A , B line connection is correct
l Is the serial port baud rate, stop bit, and check mode correct?
l Is the address of the device's DIP switch consistent with the address set by the PC software?
l 485 cable length without shielding line
2. The distance value is fixed to a value that does not vary with the measured distance of the sensor.
l sensor connection error
lThe sensor is damaged
3. The distance value fluctuates greatly
l Module power supply voltage is low, or the ripple is large
l poor sensor wiring
l The sensor has a long trace and no shielded line
l The surface of the measured object is not perpendicular to the sensor, or the angle of the measured surface is changed.
Installation size: