/ Engineering · Interoperability · lighting
KNX + DALI
lighting bus to luminaire bus.
KNX provides the building-wide control bus; DALI provides per-luminaire addressing and dimming. The two are paired with a KNX/DALI gateway per DALI segment.
- Pairings
- 3
- Caveats
- 3
- Failure scenarios
- 3
- Last reviewed
- 2026-05-17
/ Engineering body
What this integration is and where it lives
KNX and DALI are the two open standards that anchor premium lighting in commercial and high-end residential buildings. KNX runs the building-wide automation logic — scenes, occupancy, daylight harvesting, master overrides. DALI sits inside each lighting zone and gives the integrator individual control of every fitting and ballast. Bridging the two requires a KNX/DALI gateway per DALI segment, typically supporting up to 64 ballasts per segment per DALI-2 spec. The handover point is the gateway, and both sides need to be programmed against the same scene table or the seam shows up as out-of-sync dimming. The standard works well for installations where the ratio of fittings to keypads is high — anywhere a single scene needs to drive dozens of luminaires at different levels. Where the ratio is closer to 1:1, a KNX-only specification is often cleaner. The two-bus pattern is also overkill below ~30 fittings; for small jobs a single DALI-2 broadcast controller does the work without a KNX backbone.
/ Compatibility matrix
The pairings
| Partner system | Fit | Engineering note |
|---|---|---|
KNX Building Bus knx-bus | Native | KNX provides the building-wide scene, occupancy, daylight-harvesting and override logic. |
DALI Protocol dali-protocol | Gateway | DALI sits inside each lighting zone; bridged via a KNX/DALI gateway (one per DALI segment).
|
Rako Lighting rako-lighting | Partial | Rako integrates with KNX at the room boundary via Rako Hub; DALI fittings on Rako require RAK-DALI bridges. |
Entity graph
Anchoring entities in the engineering graph
technology
KNX Building Bus
ISO-standard wired open-protocol building bus. Multi-vendor, scalable to thousands of devices, designed for 20+ year lifecycles. The right backbone for vendor independence and longevity.
protocol
DALI Protocol
IEC-standard digital lighting protocol. Each fitting is individually addressable and dimmable; preferred for premium lighting where each circuit needs scene-level and tunable-white control.
technology
Rako Lighting Control
British wireless and wired lighting and scene-control platform. The default residential and hospitality lighting backbone for retrofit and new-build where Rako's keypad-and-scene ecosystem fits the design intent.
deployment pattern
Scene Orchestration Pattern
Engraved-keypad-driven scene programming where lighting, shades, climate, audio and AV move together to a named room state (Welcome, Dinner, Film, Goodnight) — programmed once and triggered as one.
Services
Services that depend on this integration
Sectors
Sectors where this matters most
Engineering toolkit
Tools that touch this integration
interactive
Lighting Scenes Interactive
Tap a scene — Welcome, Dinner, Film, Rest, Away, Goodnight — and watch every circuit, shade, AC zone and AV source shift at once across a reference 4 BHK plan. KNX + Rako + DALI.
reference
Brand Comparison Tool
Six-category catalogue — automation, audio, cinema, networking, surveillance, BMS. Pick a discipline, pick up to four brands, compare on the fields that matter. Honest about strengths, gaps and where each is decisively right.
· Interoperability matrix · Reviewed 2026-05-17