Sungrow SG500MX Operation Manual page 57

Operation Manual
Communication Failure with PC
Check if the address and the Baud rate of the LCD are the same with that of PC.
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Check to ensure the circuits are properly connected and A/B is connected correctly.
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Check if the converters are matched. Communicate again after replacing the converter.
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The monitor disk is installed incorrectly. It is recommended to reinstall the disk.
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If all the above-mentioned items are correct and this fault continues, please replace the PC
communication module on the LCD display.
The monitor disk might be incompatible with the antivirus software and thus cannot be
installed correctly. You are recommended to disable the antivirus software and then
install the monitor software.
10 Troubleshooting
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