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 ...

ABB’s intelligent CM-UFD.M*M range with Modbus RTU enables remote maintenance and failure analysis ABB has launched a new grid feeding monitoring relay with a communication interface that enables ...