Solplanet · Solar inverter
ASW H-TH hybrid (AISWEI protocol MB001_ASW GEN-Modbus V2.1.7) Modbus register map
Default configuration
- Protocol
- Modbus TCP
- Port
- 502
- Unit ID
- 1
- Addressing
- 0-based
- Byte order
- Big endian
- Word order
- High word first
Register map
| Address | Count | Name | Type | Unit | Scale | Access |
|---|---|---|---|---|---|---|
| 1600 | 2 | PV total power | UInt32 | W | 1 | R |
| 1604 | 2 | PV energy total | UInt32 | kWh | 0.1 | R |
| 1618 | 2 | BMS1 battery power Signed; positive means discharging. | Int32 | W | 1 | R |
| 1621 | 1 | BMS1 state of charge | UInt16 | % | 1 | R |
| 1751 | 2 | BMS2 battery power Signed; positive means discharging. | Int32 | W | 1 | R |
| 1754 | 1 | BMS2 state of charge | UInt16 | % | 1 | R |
Notes
Register map from the evcc template https://raw.githubusercontent.com/evcc-io/evcc/master/templates/definition/meter/solplanet-modbus.yaml, which targets AISWEI/APsystems protocol 'MB001_ASW GEN-Modbus' V2.1.7 - Solplanet ASW-TH series and the KACO blueplanet hybrid NH3 (Ethernet ports ETH5/ETH6). Modbus TCP on port 502, unit ID 1. Only units with this dedicated Ethernet port serve the map; older units behind the AI dongle do not. Measurements are input registers, settings holding registers. The grid meter import/export counters are not exposed over Modbus TCP by this firmware. Two battery packs are addressed separately (BMS1 at 1618/1621, BMS2 at 1751/1754). Battery compatibility: AISWEI/Solplanet's hybrid compatibility list (V1.9, July 2026) puts Solplanet's Ai-HB G2 / Ai-HB G2 PRO / Ai-HB G2-E packs alongside Pylontech, Dyness AP-H, Lithium Valley, FEB Powercube and BYD Battery-Box HVS/HVM on the ASW H-series hybrids - https://solplanet.net/wp-content/uploads/2024/12/Hybrid-battery-compatibility-list-V1.9-Jul-2026.pdf.