The Sofar EMS supports the Solis grid-tied and hybrid inverter product lines. The two product lines use separate communication protocols. Before we continue, we need to know in which product line your inverter is in.
Planning a Modbus TCP connection for a grid-tied inverter? Check the exact datalogger model before going on site. The S2-WL-ST (4-pin) provides the required local Modbus TCP connection on port 502. The S3-WIFI-ST is a Wi-Fi-only logger and cannot be used for this connection. See the grid-tied Solis instructions for the compatibility check and commissioning steps.
Single and three phase grid-tied inverters
Battery storage inverters with backup capability
Understanding the difference between inverter types
Go to the official Solis website. Lookup your model in either the 'Hybrid & Off Grid Inverters' or 'Grid Tie Inverters' section, marked by the blue arrows in the image below.
If your model is not listed under the 'Hybrid & Off Grid Inverters' on the Solis website, open both the Hybrid and Off-grid line and Grid-tied line pages to see if your model is listed in either section.
Grid-tied Line:
Hybrid Line: