IBC Solar · Solar inverter
HomeOne hybrid inverter Modbus register map
Default configuration
- Protocol
- Modbus TCP
- Port
- 502
- Unit ID
- 3
- 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 total energy | UInt32 | kWh | 0.1 | R |
| 1618 | 2 | Battery power Signed; the cited template's comment says positive means discharging. | Int32 | W | 1 | R |
| 1621 | 1 | Battery state of charge | UInt16 | % | 1 | R |
| 60038 | 2 | External meter power, phase L1 Signed; the cited template's comment says positive means import. | Int32 | W | 1 | R |
| 60040 | 2 | External meter power, phase L2 | Int32 | W | 1 | R |
| 60042 | 2 | External meter power, phase L3 | Int32 | W | 1 | R |
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Related guides
Notes
Source: the evcc meter template https://raw.githubusercontent.com/evcc-io/evcc/master/templates/definition/meter/ibc-homeone.yaml, used as a secondary source; no IBC Solar register document was retrieved. Modbus TCP runs on the inverter's own Ethernet port (marked RJ45-7 in the template's requirement note), not through the WiFi dongle, and the grid values come from the external smart meter wired to the inverter - so the meter rows read 0 or nonsense on a unit without that meter. The template offers RS-485 and TCP access on port 502 with unit ID 3; this seed records the TCP path (port 502, unit ID 3) because the template states no serial framing. Address convention, quoted from the template: the registers are the documented ADDR(DEC) minus the leading reference digit minus 1 (documented input register 31601 -> 1600, documented meter register 360039 -> 60038); this file lists those wire addresses and declares zero_based addressing. The map is deliberately short because that is all the cited template publishes: it reports grid power per phase, PV power and energy, battery power and SoC, and nothing else.