wiener-netze-smartmeter-serial

Python API for reading data from a Wiener Netze Smart Meter with a serial interface (via infrared)

Requires Python 3.10 or newer.

Installation

pip install wiener-netze-smartmeter-serial

Usage

For reading data from your Wiener Netze Smart Meter you need:

• A Smart Meter from Wiener Netze Type "Isramenko" or "Landis+ Gyr"
• An infrared serial adapter (only receiving is necessary)
• Your decryption key for 'Kundenschnittstelle' from Wiener Netze web portal (https://smartmeter-web.wienernetze.at/#/anlagedaten)"

To quickly test if data can be received and decrypted, use:

python3 -m wiener_netze_smartmeter_serial --interface COM1 --key aabbccddeeff00112233445566778899

To use it in your own Python project:

import asyncio

from wiener_netze_smartmeter_serial import WienerNetzeSmartMeter


async def main() -> None:
	with WienerNetzeSmartMeter(
		"COM1", "aabbccddeeff00112233445566778899"
	) as meter:
		data = await meter.read_meter_data()
		print(f"Current Power Draw: {data.active_power_in} W")
		print(data)


asyncio.run(main())

Invalid configuration raises ValueError. Connection and decryption failures raise WienerNetzeSmartMeterConnectionException and WienerNetzeSmartMeterDecryptionException, respectively.

Security

Supported Wiener Netze meters send DLMS encryption-only frames without an authentication tag. The library can decrypt these frames but cannot cryptographically verify their source or integrity. Treat raw and decrypted meter data as sensitive, and review it before attaching it to an issue.

Compatibility

• Currently only works with Wiener Netze Smart Meters of Type "Isramenko" and "Landis+ Gyr"
  "Siemens" is currently not supported.
  If you have a Siemens Smart Meter, you can help by opening an issue with a sanitized packet captured using the --raw flag.

Credits

• This was made possible with the help and insight from: https://github.com/pocki80

License

MIT