KNX Extension

The KNX Extension is designed to integrate devices with KNX interface.

In Loxone Config KNX sensors and actuators can be paired and configured, and then used in programming.

To address and configure the KNX devices the ETS software by the KNX Association and an external KNX gateway are required.

Datasheet KNX Extension

Table of Contents


The KNX Extension is installed on a DIN rail in a suitable enclosure.

Connect the power supply, Link communication to the Miniserver and the KNX data lines.

A separate KNX power supply is required to power the KNX bus.

The Extension starts after switching on the power supply, and the status LED will flash orange after a short time when the connection to the Miniserver is established.

Then follow the pairing procedure on the Link Interface.

KNX integration

To integrate KNX devices, the corresponding sensors and actuators must be created or paired in Loxone Config:

For additional information please visit the documentation on our website:

EIB/KNX Introduction

Diagnostic Inputs

Summary Unit Value Range
Online Status KNX Extension Digital 0/1
No KNX Connection Digital 0/1
KNX Sending not possible Digital 0/1


Summary Description Default Value
Serial Number Specifies the serial number of the device.
For Extensions: Enter 'Auto' to automatically pair an extension with unknown serial number.
This can only be used if there is only one Extension of the same type.
Save into the Miniserver, in order to pair the Extension.
Afterwards the program must be loaded from the Miniserver to transfer the actual serial number of the Extension into the program.
Monitor Online Status When selected, you will be notified via System Status or the Mailer if the device is no longer available or goes offline. -
Own EIB Address The EIB line's own physical address (x.x.x).
E.g.: 1.1.250

Safety Instructions

Installation must be carried out by a qualified electrician in accordance with the applicable regulations.

This device must be mounted on a DIN rail in an electrical distribution enclosure to ensure protection against contact, water and dust.

This device must not be used as part of safety-critical systems.


Datasheet KNX Extension