Solis S1-W4G-ST WiFi & Cellular Data Logger Set Up Guide

Setting up the logger for WiFi with cellular as backup

  1. Plug the logger into the inverter - be sure the inverter is on with at least DC power
  2. Open the Wi-Fi settings on your phone and then search for new networks
  3. Look for a network called "Solis_XXXXXXXXXX" the "XXXXXXXX" should be the serial number of the logger
    1. If the network is not appearing, press and hold the Reset button down for 10 seconds until both NET and COM lights start to flash simultaneously
  4. Connect to that network
  5. Open a browser on your phone and enter into the address bar
  6. Enter "admin" for the password and "123456789" for the password then hit Log In
  7. Go to the Advanced tab, then select WiFi only working mode and tap Save
  8. The logger will now restart itself. Wait a minute and then reconnect to the logger WiFi network
  9. Refresh the browser interface page 
  10. Now go to the Quick Set tab and then tap Search in the top left corner
  11. Select the local Wi-Fi network that you wish to use 
    1. This network must be 2.4GHz as 5GHz networks are not supported
  12. Enter the Wi-Fi network password (be sure that it is correct) and then tap Save
    1. You can tap the half circle to view the password before tapping Save
  13. Go back to the Advanced tab and then select 4G+WiFi working mode - tap Save
  14. The logger has now been set up to communicate using the WiFi network first
    1. If the WiFi network is lost, the logger will automatically switch to the local cellular network
    2. Once the WiFi network returns, the logger will switch back to using it instead of cellular
  15. If everything was done correctly, the "Solis_XXXXX" network should disappear and the NET/COM lights on the logger should begin flashing
    1. The NET light flashing green means that the logger is trying to connect to the WiFi network
    2. The NET light solid green means the logger is successfully connected to the WiFi network
    3. The NET light flashing blue means the logger is trying to connect to the cellular network
    4. The NET light solid blue means the logger is successfully connected to the cellular network
  16. At this point you can go to SolisCloud and add the data logger to your plant
    1. Go to your plant
    2. Tap the dots in the top right corner
    3. Tap Add Device
    4. Use the scanner to scan the QR code sticker on the logger
    5. Place your hand behind the logger if the scanner is not working (this helps it to focus)
    6. If you are still not having luck scanning the logger you can enter the serial number manually
  17. Go to the Device tab on your plant and then to the Data Logger tab 
  18. The data logger should now be displayed here with note about when it last reported

Setting up the logger for cellular only (no WiFi available)

  1. Connect to the logger's WiFi network "Solis_XXXXXXXX" 
    1. If the network is not showing up, press and hold the reset button on the logger for about ten seconds
    2. The NET and COM lights should begin to flash simultaneously - then check for the network again
  2. Open a browser and enter into the address bar - tap go or enter
  3. Go to the Advanced tab and then select "4G only working mode" - then tap Save
  4. The NET light should flash blue for a few minutes before going solid
  5. When the NET light is solid blue, that indicates the logger is successfully communicating over the cellular network
    1. If the light never goes solid and only flashes, this indicates that the cellular network signal is too weak for the logger to use it - WiFi will need to be used or the logger replaced with a LAN-capable logger 

Michael is the author of this solution article.

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