6

KNX

6.1 The Konnex/KNX Association

The Konnex (or KNX) Association was set up in 1999 on the merger between three former European associations promoting intelligent homes and buildings:

  • Batibus Club International (BCI France) promoting the Batibus system;
  • The European Installation Bus Association (EIBA) promoting the EIB system;
  • European Home Systems Association (Holland) promoting the EHS system.

The goal of the KNX Association was to define and offer certification services for the KNX open standard, while offering legacy support and certification cervices for Batibus, EIB1 and EHS. Membership is limited to manufacturers, there are over 200 members from 22 countries as of 2010, including ABB, Agilent, Bosch, Electrolux, Hager, Legrand, Merten, Moeller, Schneider, Siemens and many more leading vendors of home and building automation equipment.

KNX technology is royalty free for KNX members.

6.2 Standardization

In order to standardize the specifications, the KNX association cooperates with CENELEC TC 205. The KNX protocol has become an international standard in Europe as EN 50 090 (media and management procedures), EN 13 321-1 (media) and EN 13 321-2 (CEN, KNXnet/IP).

At an international level, KNX is standardized by ISO and IEC (ISO/IEC 14 543-3). KNX is in prestandard stage in China as GB/Z 20 965.

There are several versions of KNX, which are all backwards compatible. The current version is 2.0 (since August 2009).

The overall specification counts over 6000 pages, divided ...

Get The Internet of Things: Key Applications and Protocols now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.