Step 1: Connect the A & B of energy meter to A & B pin in RuggedBoard RS485 port respectively.
Step 2: Download the modpoll ARM execulatble binary and save it into your work directory. To download the file click below.
Step 3: Save the following code in
.sh format on your working directory and name is as mbpoll.sh
./modpoll.bin -m rtu -a 1 -t 4:float -r 159 -b 9600 -s 1 -P none /dev/ttyS2
Step 4: Run the above code to test ModBus communication