Inverters › Growatt › SPF-ES-Plus
SPF-ES-Plus
SPF-ES-Plus
Growatt
SPF 6000ES Plus
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Overview › USB type B

USB type B port

Plug a USB type B cable into the USB port, usually located at the bottom of the inverter.

Growatt SPF ES Plus USB portUSB type B cable

For a more reliable connection, we recommend the RS485 cable instead.

Steps in SolarAssistant

On the configuration page, select "Growatt" as your inverter model.

Select Growatt inverter

Then, make sure you select the relevant Growatt inverter model.

Select Growatt inverter model

Devices connected via USB will show up. Select all ports that are Growatt inverters.

Select Growatt SPF USB ports

Click connect:

Select connect

Parallel installations

With Growatt inverters you will need to connect each inverter with its own cable.

Troubleshooting - Unable to establish successful connection

If your inverter is showing up in SolarAssistant as a "ACM0" USB device then please let your SolarAssistant device run for a few hours while it installs the latest Growatt drivers, then click "reboot" on the configuration page to reboot SolarAssistant. The USB device should change to "XRUSB0". If it remains as "ACM0", please contact us.

If you are unable to get a connection, please try the official PV Keeper software from a laptop. SolarAssistant reads the inverter with exactly the same mechanism as this software.

Troubleshooting - Unreliable connection

The quality of the USB communication components varies between Growatt SPF production batches. Some users report that communication works but drops out every few days. If this happens, switch to the RS485 cable. If you stay on USB, use a short shielded USB cable with ferrite beads.