My First KNX Home Automation Project: A Step-by-Step Guide

Tue, 06 Feb 2024 00:00:00 +0000

Introduction

This is my first time diving into home automation in a bottom-up building, and I’m starting with something basic, lighting control. The client wanted a smarter and more energy-efficient home, so I decided to use KNX technology to automate the lights. It’s an exciting journey, and I’m eager to share my experience in the world of KNX automation for the first time. This article will provide an in-depth look at the planning, implementation, and configuration stages of the lighting KNX automation project.

Overview of the Project

The project involved installing KNX-compatible sensors and actuators to control the lighting in different rooms. Lighting automation is a fundamental aspect of home automation and provides an excellent introduction to KNX technology. By automating the lighting, I hoped to achieve greater convenience, energy efficiency, and customization options for the client’s home environment. Throughout the project, I focused on ensuring seamless integration between the KNX devices and maintaining flexibility for future expansion into other automation functionalities.

Devices used in the project:

1 x Surge Arrestor
1 x MDT power suply 640mA (STV-064002)
1 x MDT switch actuator 16 fold 16A (AKK-161603)
3 x MDT push button lite 55 4FOLD (BE-TAL550401)
2 x MDT smart push button 6way with screen (BE-TAS8601)
1 x RGB LED controller (AKD-0324V01)

In the KNX installation, a Type 3 surge arrestor plays a crucial role, shielding against low-energy voltage spikes and surges. However, at the main distribution board, it’s imperative to install a Type 1 surge arrestor for comprehensive protection. This robust device not only guards against direct lightning strikes but also adeptly handles high-energy surges, ensuring the resilience of the system. The power supply chosen for the KNX setup has a nominal current of 640 mA, strategically accommodating future expansions with ease. To facilitate seamless scene control, we’ve deployed three push buttons/sensors: two discreetly positioned within the bedroom (one at the entrance of the bedroom and another next to the bed), and a third positioned outside the bathroom. For enhanced functionality, we’ve integrated two advanced sensors/buttons featuring screens—one strategically placed in the corridor and another at the house entrance—enabling intuitive control and monitoring. Complementing these controls, a 16-fold actuator for various loads, ensuring smooth and efficient functionality throughout. Lastly, to elevate the ambiance of the living space, we’ve installed an RGB controller in the living room. This dynamic addition allows us to craft captivating lighting moods, enhancing the overall atmosphere of the house.

Basic definition of KNX automations

Sat, 02 Sep 2023 00:00:00 +0000

The KNX Association was founded in 1990, its headquarters are located in Brussels (Belgium) and its original name was “EIB Association”. In general, the aim of the Association was to promote smart homes, smart buildings and in particular the EIB (European Installation Bus) system, which jointly developed by some very well-known manufacturers.

KNX is an alternative method for electrical installation and is widely used in a new buildings. KNX installations are designed to provide centralized control, monitoring, and automation of various devices and systems within a building.The software that is used to programming KNX devices is called ETS.

Difference between KNX and conventional installation

In the case of the use of the most widespread means of transmission of KNX technology, “Twisted Pair”, is installed parallel to the 230V line and a control cable (transmission medium CNS data). This fact, if compared to the conventional technology of electrical installations has the following effects: