Selection of KNX RF devices is not a product decision—it is a system design decision. Most long-term KNX RF problems (battery complaints, unreliable behaviour, delayed response, repeated service calls) are not caused by wireless technology itself. They are caused by choosing the wrong RF device for the wrong role. This article is a full technical…
Introduction Most KNX systems do not fail because of bad products.They fail because of small installation mistakes that look harmless during commissioning but create long-term instability. These mistakes are rarely discussed in manuals. They are learned only after visiting multiple sites, troubleshooting live systems, and inheriting projects designed by others. This article highlights common KNX…
Introduction One of the earliest and most impactful decisions in a KNX project is the group address structure. Many projects run into trouble not because of wiring or device selection, but because the group address hierarchy was chosen without long-term thinking. KNX offers two main options for structuring group addresses: Both are valid within the…
Introduction At its core, a KNX system is not about switches, actuators, or apps. It is about communication. Every light turning on, every blind moving, and every temperature change happens because a message is sent, received, and acted upon. This article explains how KNX communication actually works, focusing on telegrams, communication objects, and group addresses—not…
Introduction KNX topology describes how devices, lines, and areas are connected in a KNX system.While standards show ideal diagrams, real projects are different. Floor layouts, panel locations, cable routes, and future expansion all affect how topology should be designed. This article explains KNX topology in simple, practical terms, using real project examples so designers and…
Introduction Power supply sizing is one of the most underestimated aspects of KNX system design. In small projects, mistakes often go unnoticed. In medium and large KNX installations, however, incorrect power supply calculation leads to unstable communication, random device failures, difficult commissioning, and long-term maintenance issues. This guide explains how to calculate KNX power supply…
