Updated DALI protocol to DALI-2 - 2021

What is the "DALI" lighting system?

The DALI protocol (English acronym for Digital Addressable Lighting Interface) is used to refer to a common standard for communication between a control module and light ballasts and dimmers, allowing the management of the entire lighting system by associating an address with each light fixture, enabling, among other things, complete control of light intensity and the detection of any malfunctions in each individual fixture.

The DALI system is specified in the international standard IEC 62386, and in the new specifications of the Digital Illumination Interface Alliance (DIIA), which today includes the main manufacturers of lighting components.

When did the standard evolve from DALI to DALI-2?

The DALI system was launched in the late 1990s and was developed as an open, universal, versatile, user-friendly, cost-effective standard that allows for the creation of robust, scalable, and flexible systems.

The characteristics of simplicity, affordability, and convenience led to rapid adoption.

The DALI standard then underwent a major technological renewal with the advent of LED lighting. This completely reworked technology allows for the management of lighting through motion sensors and lights, interfaces, and relays.

The IEC 62386 standard was then revised at the end of 2014 for easier use with the launch of the latest DALI-2 version, introducing significant improvements and new commands and functionalities.

One of the most significant changes in DALI-2 is the addition of innovative control devices not present in the original DALI version.

DALI 2 introduces part 103 for control units, including new types of devices and remote control interfaces that actively communicate on the bus. In this way, even sensors can communicate with other light elements or control sensors without a prior request. Previously, the control unit had to continue requesting sensor status. All functionalities implemented by lighting devices are further expanded, with the definition of innovative Device Types.
DALI 2 was developed