ABB i-bus KNXGeneralDLR/A 4.8.1.1 | 2CDC507128D0202 31 GeneralThe ABB i-bus® KNX DALI Light Controller DLR/A combines both the internationally standardized andopen standards in the digital illumination control DALI (EN 62386) and the intelligent installation systemKNX (ISO/IEC 14543-3 and EN 50090) and, at the same time, allows energy-efficient, constant lightingcontrol.Its surface-mounted design means that the DLR/A is suitable for installation in suspended ceilings orunderfloor to integrate remote DALI lighting areas into the KNX building automation. The DALI output ofthe DLR/A can be used to connect up to 64 DALI devices. The 64 DALI devices can be individuallyaddressed and allocated as required in up to 8 lighting groups. Control using KNX is implementedexclusively via these 8 lighting groups.With 4 light sensors, up to 4 separate constant lighting controls are possible that additionally provideenhanced comfort and automatic energy conservation.Constant lighting control can: reduce operating costs save energy guarantee an optimum working environment at constant brightness provide enhanced lighting comfort in day-to-day operationThe occupancy is also automatically detected in addition to lighting control via a KNX presence detector,an above average energy saving potential can also be achieved using KNX lighting technology alone. Thefollowing graphic provides an overview of the energy that can be saved by the use of modern, automaticintelligent installation systems.