Component: DALI Master (Comms: System): Difference between revisions

Revision as of 14:20, 13 July 2026

Author	MatrixTSL
Version	1.0
Category	Comms: System

DALI Master component

A serial based communications protocol designed for controlling lighting, specifically digitally controlled dimmable fluorescent ballasts. DALI requires the signals to be level shifted from VCC and GND to +9.5V - +25.5V and GND. The master component can addess up to 64 individual slaves & up to 16 groups.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_DALI_Master.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_DALI_Master.fcfx

Detailed description

No detailed description exists yet for this component

Examples

DALI Master Example, reads the value of a keypad and sends out DALI commands based on the key pressed, 1 = switch on a slave's light, 2 = switch off a slave's light, 3 = read the slave's light level. DALI Master Example1

For a DALI Slave example see: Component: DALI Slave (Comms: System)

Macro reference

Initialise

	Initialise
Configures the UART serial interface.
- VOID	Return

ReceiveBackwardFrame

	ReceiveBackwardFrame
Attempts to receive an 8-bit reply 0 indicates timeout or no reply
- BYTE	Return

TransmitForwardFrame

	TransmitForwardFrame
Send out a 16-bit frame consisting of the 8-bit address and data bytes. After sending the controller will attempt to receive If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Address byte
- BYTE	Data
Data Byte
- BYTE	Return

TransmitGroupForwardFrame

	TransmitGroupForwardFrame
Sends out a group frame containing address and data. After sending the controller will attempt to receive a reply. If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Group Address 0-15
- BYTE	Type
0 = Data, 1 = Command
- BYTE	Data

- BYTE	Return

TransmitIndividualForwardFrame

	TransmitIndividualForwardFrame
Sends out an individual frame containing address and data. After sending the controller will attempt to receive a reply. If a reply is detected then the Return value will equal to the reply. If no reply is detected then the Return value will be 0.
- BYTE	Address
Individual Address 0-63
- BYTE	Type
0 = Data, 1 = Command
- BYTE	Data

- BYTE	Return

Property reference

	Properties
	Serial Properties
	TX Pin

	RX Pin

	Simulation
	API

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