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 ...

The MB-Gateway is a single port Modbus Gateway module that converts Modbus TCP to Modbus RTU. The gateway module features an automatic read function and is equipped with one RJ45 10/100 Mbps Ethernet ...