| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| Remeha heatpump | ✅ | ✅ |
Control is only possible using Boost or Block. Specific Wattage control is not supported!
The communication between the Sunlight Group EMS and the Remeha heatpump operates via RS485 or Modbus TCP.
| Device | Sunlight Group EMS model OM1 | Sunlight Group EMS model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| A | RS485 A | RS485_POS | RS485 A | TX+ |
| B | RS485 B | RS485_NEG | RS485 B | TX- |
| GND (if available) | RS GND | GND | Not available | G |