Contains examples of Modbus (RS485) communication with Arduino. The Arduino RS485 Module is used for RS485 communication. In the examples, Arduino Mega is used as the Master, and Arduino Uno is used ...

libmodbus is a library that provides a Serial Modbus implementation for Arduino. A primary goal was to enable industrial communication for the Arduino in order to link it to industrial devices such as ...

Abstract: This paper explains how to set up the communication between PLC and Arduino based on Modbus Protocol. PLC is a master and Arduino is a slave. A Fx2N-48MR, a Fx2N-485BD, an Arduino main board ...

Welcome to my quick review of an inexpensive 2-channel 5V relay module controlled via RS485 bus utilizing Modbus RTU protocol. As claimed by some online sellers, this easy-to-get Modbus RTU 2-Channel ...