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What is DALI and How DALI Works

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What is DALI and How DALI Works 2019-03-01

DALI (Digital Addressable Lighting Interface) is described as a protocol for communications and control of lighting equipment.

This includes control gear and control devices as well as the equipment for bus power supplies.

DALI is a protocol set out in the technical standard IEC 62386.

The task of providing light in a room has long been resolved – the challenge today is to ensure that the right quality of light is provided. The list of parameters that need to be considered is long. Just a few are:

1. brightness and glare

2. Color rendering and light color

3. color control and presence sensing

For these tasks, you need a reliable, reasonably priced and simple control system helping to address the challenges that modern lighting technology needs to meet – that's DALI.

DALI network consists of a controller and one or more lighting devices (e.g., electrical ballasts and dimmers) that have DALI interfaces. The controller can monitor and control each light by means of a bi-directional data exchange. The DALI protocol permits devices to be individually addressed and it also incorporates Group and Scene broadcast messages to simultaneously address multiple devices.