API Reference

Core Classes

Z21Station

Loco

Message Handling

Packet

XBusMessage

Data Types

Low-Level Details

Constants and Protocol Headers

Protocol constants, message headers, and header names are defined in the low-level modules.

The z21aio.headers module contains: - LAN packet header constants - X-Bus message header constants - Helper functions for header name lookup

The z21aio.messages module contains: - Broadcast flag constants - LAN command constants - XBusMessage class for low-level protocol messages