DALI Interface

A common API for different hardware realizations of a DALI interface.

Supported Hardware

• Lunatone 241 389 23DO
• BEGA 71024
• Serial based SevenLab Hardware

API

The interface classes implement the following API functions.

Transmit

Transmits a DALI frame on the bus. All 8 bit frames are treated as backward frames.

    def transmit(self, frame: DaliFrame, block: bool = False) -> None:

Parameters

• frame (DaliFrame): frame to transmit
• block (bool, optional): wait for the end of transmission. Defaults to False.

Get

Get the next DALI frame from the input queue.

    def get(self, timeout: float | None = None) -> DaliFrame:

Parameters

• timeout (float | None, optional): time in seconds before the call returns. Defaults to None (wait until halted).

Returns

• DaliFrame: time out is indicated in the frame status

Query_Reply

Transmit a DALI frame that is requesting a reply. Wait for either the replied data, or indicate a timeout.

    def query_reply(self, request: DaliFrame) -> DaliFrame:

Parameters

• request (DaliFrame): DALI frame to transmit

Returns

• DaliFrame: the received reply, if no reply was received a frame with DaliStatus:TIMEOUT is returned

DaliFrame

Class definition for DALI frames

DaliStatus

Class definition for status of DALI frames