IEC 62386
DALI is specified in the IEC 62386 standard and offers advantages such as flexibility, simplicity, user friendliness and robustness. IEC 62386 has been revised several times and was extended considerably in November 2014 with the publication of the second revision. While in the first revision only DALI control gears (lamps) were considered, from the second revision onwards DALI control devices (sensors and application controllers) are also included. These are described in the respective section of IEC 62386:
IEC 62386-101 | General system properties such as cabling, mains supply and frame structure |
IEC 62386-102 | General properties of the DALI control gears |
| IEC 62386-201: Fluorescent lamps (device type 0) |
IEC 62386-103 | General properties of the DALI control devices |
| IEC 62386-301: Push buttons |
The IEC 62386-101, IEC 62386-102 and IEC 62386-103 standards describe general properties, while the IEC 62386-2xx and IEC 62386-3xx standards specify the individual device types. IEC 62386-103 and IEC 62386-3xx were included in Revision 2 of the DALI standard.
Up to 64 DALI control gears and up to 64 DALI control devices can be connected to the KL6821/EL6821 per DALI line. The KL6821/EL6821 represents the DALI controller. One such device exists for each DALI line. Up to 64 control gears, which have to be DALI/DSI devices, can be connected to the KL6811. Any number of DALI lines (KL6811, KL6821 or EL6821) can be operated with a single TwinCAT controller.