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In Solar system, communication is an important part, like WiFi, ALN, GPRS, Bluetooth, RS485 and PLC etc. And what is more important is to find a proper monitoring method base on different conditions. For example, PLC is normally used in big commercial or utility scale projects because of it cost-saving characters like saving communication cable cost and O&M and system installation cost comparing with RS485, and also its convenience and stability comparing with separated WiFi or LAN communications methods.
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