| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| Nibe F-Series Heatpump | ❌ | ✅ |
The Modbus 40 communication module is also needed to enable Modbus communication on this heatpump https://www.nibe.eu/nl-nl/producten/accessoires/modbus-40
[!WARNING] Control is only possible using SG-Ready Operation Modes (Boosting or Blocking). Specific Wattage control is not supported. The control is done by using the offset curve of the manufacturer
The communication between the Sofar EMS and the Nibe F1253 heatpump operates via RS485.
| Device | Sofar EMS model OM1 | Sofar 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 |