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 I/O module offers dual Ethernet ports that allow it to be used in fault-tolerant ring topologies. It provides up to 20 discrete inputs, including four isolated high-speed counters, and eight ...
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