Use usb transfer 485 connection PC driver installed converter computer power supply no problem no problem wiring is xp system sensors can be normal communication can appear what problem

CodePudding user response:

Computer serial port to choose wrong, baud rate, data bits, the parity bit is set up correctly, can't use two USB transfer 485 communicate with each other to see if normal,

CodePudding user response:

Serial port after the driver installation will only see only a baud rate should be the right data a check digit is correct usb transfer 485 can be used normally I connect other sensors can be used, but only you can't get a data connection select the sensor, the sensor can also make sure it's not bad

CodePudding user response:

How to confirm the sensor is bad? Some sensors to return to the correct data is the premise of need to be able to receive the correct command code, finally, please on the oscilloscope,

CodePudding user response:

Sensor via a serial port server sends commands can be returned data is to use the usb transfer 485 directly connected PC no data is returned, and other sensors use the usb transfer 485 can be used