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 ...
VICTORIA, BC (July 27, 2001) — Power Measurement, a leading provider of enterprise energy management systems, has added Modbus® master communications capability to its web-enabled ION 7500™ and ...
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