Modbus RTU Master tests with Arduino via RS232 and PLC Panasonic FPX C14R

  This time I have communicated the Arduino with Panasonic PLC and I checked the Arduino useful in the industrial field direfencia of the previous tutorials I’ve tested both devices communicating via RS – 232. Summary 1. The arduino send via modbus ADC value 0 to Holding Register 0 and the plc into a strategy…