Supported recorders › Windows and macOS
Windows and macOS
A Windows or macOS computer works as the KNXSENSE bus recorder through an external KNX/IP gateway.

How the recorder works.
The KNXSENSE recorder is installed on the computer as a background service. It starts with the computer and runs without anyone logging in, so you can keep using the computer normally for other work.
The recorder only reads bus traffic and never writes to the bus. The connection is established outbound from the site, so no open ports and no static IP address are needed. The recorder also works behind a shared carrier IP address.
Recording requires the computer to be powered on continuously and the site to have an internet connection.
- Specifications
- Remote ETS access
- Via KNXSENSE
KNXSENSE-compatible models
- Windows 10 (64-bit)
- Windows 11 (64-bit)
- macOS 11 or later
How telegrams reach the recording.
The computer sees the bus traffic through the site’s KNX/IP gateways.
A single recorder reads up to 16 KNX/IP gateways at once and merges their traffic into a single recording. On a large site there may be, for example, one interface per line.
Telegrams never have to be routed from one line to another for recording, so traffic between the lines does not grow at all. If the same telegram is seen through two interfaces at the same time, it is recorded only once.
KNXSENSE compares the addresses it sees against your ETS project and tells you straight away which lines and devices are in the recording and which are missing.
KNX bus monitoring in your browser.
Every telegram the computer sees through the site’s KNX/IP gateways is recorded around the clock, to the millisecond, on our secure servers — even when you are not on site.
Telegram-level history reaches 400 days back on a rolling window. You can browse it in your browser, on any device, without the ETS software.
ETS tunnelling through KNXSENSE.
You open the connection from the interface, and from there you program the site in ETS as if you were on site.
The recorder never takes the interface’s last free tunnel. ETS therefore always reaches the bus, even if the slots are otherwise taken. With many gateways the recording takes no tunnel slots at all.
Remote access is included in the KNXSENSE monthly fee. No separate portal, licence or port forwarding is needed.
Setting up a computer as a KNX bus recorder.
You choose your operating system and get a ready-made command. On Windows you run it in PowerShell, on macOS in Terminal, in both cases with administrator rights. The command contains a one-time install code that is valid for one hour.
The installation verifies the integrity and the publisher signature of the files it downloads. No inbound ports are opened on the computer.
The installer disables sleep mode on mains power so the recording has no gaps. The computer must be on the same local network as the KNX/IP gateway, preferably wired, and outbound HTTPS must be allowed.
- Import your ETS projectNames and structure from the project into KNXSENSE
- Choose your operating systemWindows or macOS
- Run the ready-made commandA one-time code, and the installer does the rest
- Recording is runningThe first telegram from the site’s bus confirms the connection
Setup is a one-off job. When updates to the recorder are released, they are installed on the computer automatically. Updating requires no action from you and no visit to the site.
Other supported recorders.
These devices are compatible with KNXSENSE too. Compare all →