Read data from energy meter (ISKRE ME172) using RS485 and arduino uno

[markd833]

Which RS485 module are you using? Which Arduino are you using?

Is it an auto switching RS485 module?

@meladiezoukah

I connected the Arduino pins to the converter as follows:
Arduino uno >- RS485
RX>-TX
TX>-RX
GND>-GND
VCC>-VCC

You should use different pins on your UNO as Rx & Tx are used to communicate with the IDE serial monitor.

With an UNO, you need a software serial port setup to use a couple of pins (NOT 0 & 1) to communicate with the energy meter.