A KNX/DALI gateway can drive up to 64 control gear on one DALI bus from KNX commands, exposing the gear as KNX Group Objects (DPT 1.001 on/off, DPT 5.001 dimming, DPT 232.600 RGB, DPT 17.001 scene).
True
The classic commercial integration pattern uses KNX as the building backbone (general automation, scenarios, HVAC) and DALI as a dedicated per-floor or per-zone lighting bus, joined by a KNX/DALI gateway that maps between the two. Common products include the ABB DG-S/D, JUNG 2128 REG, Theben DALI Gateway and Lunatone DALI-2 KNX, priced around 400-1200 EUR per gateway (one DALI bus = up to 64 control gear).
Plan one Group Object per DALI short address rather than per group — KNX visualisation tools handle 64 individual addresses far better than they handle dynamic group membership changes.
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- DALI-2 (IEC 62386 Edition 2, 2014+) is the major evolution of DALI v1, adding native support for input devices (sensors, push-buttons) directly on the DALI bus itself, together with a product certification programme administered by the DALI Alliance (DiiA).1. Architecture · DALI vs DALI-2
- The DALI bus uses a polarity-free twisted pair (no + / - orientation), with Manchester coding at 1 200 baud over a nominal 22.5 V DC supply, and is allowed to share the same multi-core cable as the 230 V mains feeding the luminaires.1. Architecture · Physikalische Schicht
- Self-contained emergency luminaires (DT1) under DALI-2 support standardised commands for the monthly function tests and annual duration tests required by EN 50172, and these tests can be automated from a central DALI-2 controller.2. Devices · Typ 1 Notbeleuchtung
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- DALI bus power supplies are typically available at 100, 120, 150 or 250 mA depending on the vendor (ABB BCO/S, Tridonic DALI-PS, Lunatone PS5), and should be sized for the cumulative current of control gear plus input devices, with a 30 percent margin.7. Best practices · Bus-Netzteil