The Weinzierl KNX USB Interface 312 is a data interface between a PC or laptop and the KNX installation bus. It’s used as a programming interface for ETS® Software Version 3 (or higher) and supports KNX long frames. Long telegrams enables a faster download to devices that can receive these telegrams.
Operating status and communication errors on the bus is shown by LED indicators on the device. As a result, you can immediately see if there is any errors. The USB connector is galvanic isolated from the KNX bus.
USB and KNX
While KNX is established as the most important standard in building automation, USB has developed into a universal communication solution for PCs. Due to the different system properties, KNX
and USB can complement each other perfectly.
Notes for developers
The KNX USB communication is based on HID and cEMI telegram coding according to the KNX specification. To integrate the KNX USB Interface in applications running on Windows or Linux the cross-platform SDK kDrive is available from Weinzierl.
In addition to the telegram interface via cEMI, the KNX USB Interface 312 includes a complete KNX Stack with communication objects and BAOS protocol V2. Thus, the device offers the possibility to extend devices with USB connection to full KNX devices, which can even be programmed by ETS. For more information about this solution and available SDKs please contact us.