Solaredge - Activate Modbus TCP

The following guide describes how to configure the Modbus TCP  settings for SolarEdge inverters and how to test the connection.

Prerequisites​

  • Network connectivity (Ethernet or WiFi)
  • Physical access to inverter
  • Web browser
  • Mobile device with camera

Configuration Process​

Physical Access Setup​

  1. Locate the on/off  switch on the inverter
    • Usually has a red cap
    • Typically found near the bottom left of the inverter
  2. Push the switch to the left (P ) for 1 second
  3. Release the switch

Network Connection​

  1. Locate the QR code  on the right side of the inverter
  2. Scan the QR code  using your phone's camera
  3. Connect to the WiFi network indicated by the code
    • Note: You may receive a notification about the network lacking internet access
    • If this occurs, select "Use network anyways"

Modbus Configuration​

  1. Open a web browser
  2. Navigate to http://172.16.0.1/
  3. Find the "Communication Settings" section
  4. Enable the Modbus TCP  option
  5. Note the port number shown
    • Usually 502  or 1502
    • Write down, you'll need this for future reference

Important Notes​

  • Document the port number for future use
  • Maintain network connectivity during configuration
  • Ensure proper physical access to inverter switches

Troubleshooting​

Connection Issues​

If unable to connect:

  1. Verify QR code  scan was successful
  2. Check WiFi connection status
  3. Confirm correct IP  address entry

Configuration Problems​

If settings don't apply:

  1. Refresh browser page
  2. Verify network connection
  3. Try alternative browser

Testing connectivity (advanced)

After enabling Modbus TCP on your SolarEdge inverter, it's important to verify that the connection is working properly. You can follow our testing guide to confirm the connection. For SolarEdge inverters, try both port 502 and 1502, as the port number can vary between models and firmware versions. The Unit ID is typically set to 1. Make sure to document both the working port number and Unit ID for future reference, as you'll need these for any monitoring setup.

Sources​

Still need help? Contact Us Contact Us