KNX USB interface not working

My first contact with the KNX world was through the training course I attended. The company I’m working for got a new client and the client was into building KNX based software.

Since I had no idea what is KNX, I did the only thing I knew. I started reading documents from the KNX organization. Soon there was a KNX training course organized in a city nearby and I enrolled.

KNX training was pretty cool, I learned some basic stuff there. Among other things, I learned that there is a KNX device called USB interface device.  Main purpose of the USB interface device is to enable any computer to communicate with the KNX network. Continue reading “KNX USB interface not working”

Physical address vs Group address

There are two types of addresses in the KNX specification:

  • Physical addresses (also known as Individual addresses)
  • Group addresses.

The meaning and the usage of these two types of addresses is very different and it is very important to understand the difference between the two. Also it is important to understand when a certain address type should be used. Continue reading “Physical address vs Group address”

Why use KNX

In my previous post I have covered some of the basic topics regarding the KNX:

  • What is the KNX?
  • What are the areas of the home and building control which are covered by KNX?
  • How does the KNX installation work?

But there is one more very basic, yet very important question which needs to be answered.

Why would someone use KNX in his house or building environment?

What are the positives, the incentives?

What are the negatives, the drawbacks?

What are the obstacles preventing someone to implement KNX installation and start using it? Continue reading “Why use KNX”

KNX 101

What is KNX?

Let’s start with an official definition from the KNX site, KNX is the worldwide standard for home and building control. Pretty clear. Let us break down this definition.

Worldwide means that it is used all over the world. If we can trust the data which KNX provides, there are over 370 KNX member companies around the world, more than 7000 certified product groups and several million of KNX installation running. Continue reading “KNX 101”