This document provides detailed instructions on connecting RS485 communication cables to Huawei SUN2000 series solar inverters (30KTL-A, 33KTL, 33KTL-E001, 40KTL) and SmartLogger
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This article discusses how to set up RS485 communication between multiple Huawei solar inverters and a monitoring system using either a Smart Dongle or SmartLogger device.
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When routing communications cables, separate them from power cables and connect the shield layer to the PE point to prevent communication from being affected. This section describes how to connect
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The dongle is a small device, about the size of a USB Wi-Fi stick, that is connected to the inverter to allow for wireless configuration. Important: The dongle must not remain connected during normal
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Huawei may change the information at any time without notice. This document describe the function of RS485 port and the method of connecting RS485 communication cables. The SUN2000 can connect
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Locate communication terminals (RS485) as shown in the picture below. There are two connection terminals on the configuration circuit board: RS485IN and RS485OUT (used for Daisy Chain
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Connect the signal cable to the signal cable connector. Connect the signal cable connector to the COM port.
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Connect the RS485A1 and RS485B1 pins from the COM-port of your inverter via a twisted pair cable to the two screw terminals of the USB-adapter. A possible cable is a CAT5e cable where
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With 72% of industrial solar projects now specifying RS485 connectivity according to the 2024 SolarTech Industry Report, understanding Huawei''s implementation becomes crucial for
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