The SofarEMS supports Kostal Pico inverters that use the "Kostal Pico protocol". This includes many inverters from the PIKO series.
Device Type
Modbus TCP (Ethernet)
RS485
Curtailment
Kostal Pico Inverters
✅
✅
❌
Note
Note
Curtailment
While these inverters support active power control and feed-in limitation, the protocol driver used by the SofarEMS does not currently support sending curtailment commands.
You MUST give each devicea unique address on the RS485 bus. Check the device manual for instructions.
Use lower addresses first (1, 2, ...) because the SofarEMS will find them faster!
For each device, it is generally recommended to keep the factory-default baud rate, parity, and stop bits. The SofarEMS will scan those first.
The default RS485 bus address is often 1. If you have more than one inverter on the bus, you must assign a unique address to each one. This can typically be done via the inverter's display menu or web server.
The physical RS485 connection varies by inverter model. Please consult your specific inverter's installation manual for the correct terminals and pinout.
Common Connection Types: Inverters may have either RJ45 sockets (for easy daisy-chaining) or a terminal block for the RS485 connection.
Required Signals: You will need to identify and connect the Data A, Data B, and Ground (GND) signals to the corresponding ports on the SofarEMS.
Connect the inverter's RS485 terminals to the SofarEMS as follows:
