I am using arduino uno to communicate with my industrial drive. I am using juan bester library for RS485 communication.
Now here's what's happening: When I open serial monitor in my arduino after uploading the sketch. I can't see the RX light flash on my arduino. Tx remains always on. This means my arduino is not receiving any response from my inverter.
But using same code and arduino as my USB com port with communication softwares like modbus poll. I am able to see RX light flash. Which means my arduino is receiving the response.
Thus, my question is where I am going wrong? how should I go about reading data in arduino serial monitor? How should my arduino poll for message?