What is KNX Standard?

Le protocole KNX est un protocole à logique répartie. Contrairement à d'autres protocoles d'automatismes, celui-ci ne fonctionne pas en mode maître/esclave, chaque automate étant indépendant des autres.

KNX is a standardized (EN 50090, ISO/IEC 14543), OSI-based network communications protocol for building automation. KNX is the successor to, and convergence of, three previous standards: the European Home Systems Protocol (EHS), BatiBUS, and the European Installation Bus (EIB or Instabus).

Please visit KNX Oficial world standard for building automation site; 

http://www.knx.org/ae/knx/association/what-is-knx/index.php

Or, an image is better than words;

https://www.youtube.com/watch?v=xGDVTDGjkAE

Kind regards

Joao Trigo

It's an international protocol to link between the electric parts and automation modules like modebus ,canbus , smart but RS385

KNX is a network communication protocol that is used to put the intelligence into intelligent buildings. It enables the integration and programming of a range of products from a range of manufacturers using a single software tool called ETS.  This standard is based upon more than years of experience in the market, amongst others with predecessor systems to KNX: EIB, EHS and BatiBUS. Via the KNX medium to which all KNX products/bus devices are connected (twisted pair, radio frequency, power line or IP/Ethernet), they are able to exchange information. Bus devices can either be sensors or actuators needed for the control of building management equipment such as: lighting, blinds / shutters, security systems, energy management, heating, ventilation and air-conditioning systems, signalling and monitoring systems, interfaces to service and building control systems, remote control, metering, audio / video control, white goods, etc. All these functions can be controlled, monitored and signalled via a uniform system without the need for extra control centres.