I am trying to interface sele EM2M, I am using Arduino Mega with RS 485 module. I want to read the internal registers I am using ModbusMaster library. The data which I want to receive is in the internal registers but I am not getting how can I read Internal registers. When I use other software to read data I am getting the out
I also wanted to know the difference between Internal Registers and Holding Registers
Another questions how are the frames formed for communication in rs485 from the above image I can understand 01 04 but from where do they get 00 1A please explain the same.