How Can I Read Register Usb Rs485 To Any Modbus Device?

My Device Address is 1, I tried Read Holding Register, and Register Address is 0. I tried pyserial to communicate Modbus Device but pyserial this is my code: import serial,time se

Solution 1:

The read() method takes an integer for the number of bytes to read.

Did you mean:

whileTrue:
    ser.write(b'\x01\x03\x00')
    val = ser.read()
    print(val)