The UE Series supports both RS485 (Serial) and Modbus TCP (via Ethernet dongle). Ensure you select the correct connection mode in the controller.
The 10000-20000 UE series uses a specialized circular waterproof connector for RS485 communication. You must disassemble this connector to wire it.
Pin Definition: Inside the circular connector, the pins are numbered 1 and 2.
| Device | SmartgridOne Controller model OM1 | SmartgridOne Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| Pin 1 (RS485 A) | RS485 A | RS485_POS | RS485 A | TX+ |
| Pin 2 (RS485 B) | RS485 B | RS485_NEG | RS485 B | TX- |
| N/A | RS GND | GND | Not available | G |
Note: Consult the manual if your model uses a different connector type.
For the smaller UE models, the connection is typically via the terminal block or DB9 port. Please verify with the specific manual linked above.
To change the Modbus address on the Growatt UE LCD display: