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Deye Inverter Configuration Guide

How to configure Deye inverters and test the connection.

Updated this week

Prerequisites​

  • Compatible with SUN-G3-EU-230 Series (300W to 2000W models)

  • Network scanning tool (e.g., Advanced IP Scanner )

  • Web browser

  • Network connectivity

Configuration Process​

Locating Your Inverter​

  1. Choose one of these methods:

    • Use your router's interface

    • Use Advanced IP Scanner to identify inverter IP
      ​

Accessing Settings​

  1. Enter inverter IP in browser

  2. Login with default credentials:

    • Username: admin

    • Password: admin

  3. Modify URL to: http://<ipaddress>/config_hide.html

Modbus Configuration​

Configure "Internal server parameters settings":

  1. Set Protocol to TCP-Server

  2. Set Port to 8899

  3. Enter your server IP address

  4. Set TCP timeout to 300

Troubleshooting​

Inverter Discovery Issues​

If you cannot find your inverter:

  1. Verify inverter power status

  2. Check network connectivity

  3. Try alternative network scanning tools

Settings Problems​

If settings are not saving:

  1. Confirm you're using the config_hide.html URL

  2. Clear browser cache and retry

  3. Verify admin access rights
    ​

Modbus Connection Issues​

If Modbus is not working:

  1. Verify port 8899 is accessible

  2. Check server address accuracy

  3. Test using Modbus diagnostic tool
    ​

Testing Connectivity (advanced)

After completing the configuration, you should verify that the Modbus TCP connection is working properly. Follow our testing guide to confirm the connection. For Deye inverters, remember to use port 8899 when testing the connection. The Unit ID is typically set to 1, but you may need to try 0 if that doesn't work.

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