Python Qube Heat Pump Client
Asyncio client for Qube heat pumps via Modbus TCP.
Installation
pip install python-qube-heatpump
Usage
import asyncio
from python_qube_heatpump import QubeClient
async def main():
client = QubeClient("192.168.1.100", port=502, unit_id=1)
await client.connect()
state = await client.read_state()
print(f"Outside temp: {state.temp_outside}°C")
print(f"Supply temp: {state.temp_supply}°C")
print(f"DHW temp: {state.temp_dhw}°C")
await client.disconnect()
asyncio.run(main())
Features
- Async Modbus TCP client using pymodbus
- Entity definitions for sensors, binary sensors, and switches
- FLOAT32 decoding with big endian (ABCD) byte order
- Type-safe dataclasses for entity definitions
- mDNS device information: panel software version, controller firmware and UUID from the controller's advertisement
- Monotonic clamping with reset detection for the energy totals: sub-kWh jitter is clamped, while a drop of more than 1 kWh that persists for 3 consecutive reads is accepted as a counter reset (logged as a warning);
clear_monotonic_cache()forgets all baselines
Device information over mDNS
The controller advertises a _workstation._tcp mDNS service whose TXT record holds the software version shown on the panel, the controller firmware and a stable UUID. Register 77 (async_get_software_version()) reads 0.0 on recent firmware, so use this for the version instead:
from zeroconf.asyncio import AsyncZeroconf
from python_qube_heatpump import async_get_device_info
aiozc = AsyncZeroconf() # in Home Assistant: zeroconf.async_get_async_instance(hass)
info = await async_get_device_info("192.168.1.100", aiozc)
if info:
print(info.software_version, info.controller_firmware, info.uuid)
The lookup returns None when no record is found within the timeout (default 5 s), for example when mDNS is not forwarded between VLANs. parse_device_info(properties) parses TXT properties you already have, such as those from a zeroconf discovery.
Entity Definitions
The library provides pre-defined entity definitions for all Qube Modbus registers:
from python_qube_heatpump.entities import SENSORS, BINARY_SENSORS, SWITCHES
# Access entity definitions by key
temp_supply = SENSORS["temp_supply"]
print(f"Address: {temp_supply.address}, Unit: {temp_supply.unit}")
Vendor Documentation
The official Modbus register documentation from HR-Energy is available at:
- docs/modbus-lijst-qube-totaal.pdf (included in this repo)
- HR-Energy website
Related Projects
- qube_heatpump - Home Assistant HACS integration using this library
License
MIT License
1 maintainer
Metadata
1 maintainer
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