Changelog

All notable changes to this project are documented here.

[0.1.1] - 2026-10-24

Fixed

• Malformed or mismatched Modbus replies now raise IntelbrasSolarProtocolError and reopen the connection. Before, a bare IndexError/ValueError escaped. The WiNet-S produced such frames when two clients polled at the same time (observed on the real IONS-5K M5): bad MBAP length, wrong function code, wrong byte count.
• The Modbus transaction id now starts at a random value, so two concurrent clients no longer accept each other's replies.

[0.1.0] - 2026-10-24

Added

• IntelbrasSolarClient: async client for Intelbras (Sungrow WiNet-S) inverters with async_get_status, async_get_inverter_data, and the controls async_set_inverter_on, async_set_power_limit_enabled, async_set_power_limit and async_set_clock.
• ModbusTcpClient: dependency-free asyncio Modbus TCP client (FC3, FC4, FC6).
• WiNetClient: reader for the datalogger WebSocket (connect, state, fault and devicelist services).
• InverterStatus, DataloggerStatus and Mppt dataclasses, built by parse_registers and parse_datalogger.
• Exceptions IntelbrasSolarError, IntelbrasSolarConnectionError and IntelbrasSolarProtocolError.