Button Events

In input device mode, the factory setting, the coupler sends no DALI control commands of its own. It reports button events to a central DALI-2 controller, such as SmartCore, which decides what happens.

Each of the four inputs is one instance of type 1, push button, as defined in IEC 62386-301. The events below are the ones the standard defines and the coupler sends.

Event	When it is sent
Button pressed	The button is pressed
Button released	The button is released
Short press	Pressed and released without a second press following quickly. With double press disabled, a quick press and release
Double press	Pressed and released, followed quickly by a second press
Long press start	Pressed and held
Long press repeat	Repeats at a set interval while the button stays held
Long press stop	The held button is released
Button stuck	The button has stayed pressed longer than expected
Button free	A stuck button has been released

A press has to last at least 200 ms to count. The threshold that separates a short press from a long one is configurable between 200 and 5100 ms.

The long press repeat event is what makes dimming work: your controller dims for as long as the repeats keep arriving and stops when the long press stop event comes in.

Stuck and free tell the controller that a button is jammed, for example by a piece of furniture pushed against the wall plate, so it can ignore it instead of dimming forever.

When to use this mode

Use input device mode whenever the installation has a central DALI-2 controller that supports IEC 62386-103. The controller holds the logic, which keeps the behaviour in one place and lets you change it without touching the coupler.