This is a configuration example using the IP Gateway KNX/BACnet N143/01 from the Siemens GAMMA portfolio to integrate KNX S-Mode networks into Desigo systems.


The KNX/BACnet Gateway N 143/01 on IP offers an easy way to integrate KNX S-Mode devices via simple group addressing into Desigo PXC4/5/7 automation stations. As BACnet-application specific controller (B-ASC), the gateway acts between KNX TP and BACnet IP for up to 250 BACnet objects and up to 455 BACnet COV subscriptions. If a communication across the KNX segments is required, KNX Line coupling units have to be used (see graphic above).

Project engineering


Mapping of KNX communication objects to BACnet

The following BACnet object types are supported by this gateway:

  • Binary Input
  • Binary Output
  • Binary Value
  • Analog Input
  • Analog Output
  • Analog Value


In ETS, the following object types can be configured and mapped to BACnet (for more details, see A6V10466141)

  • 1 bit
  • 1 Byte unsigned, signed
  • 2 Byte unsigned, signed, or float
  • 4 Byte unsigned, signed value, or float


Engineering with ETS and ABT Site

  1. Add the IP Gateway KNX-BACnet N 143/01 as device to your ETS project.
  2. Define a proper device name and a device description in "Optional settings".
  3. Define objects on the gateway with a proper naming (do not use generic names). Important: Independently of having an input or output signal, set "Transmission direction" always as bidirectional KNX <--> BACnet (value).
  4. Generate the EDE file via the web interface of the IP Gateway.
  5. In ABT Site, import "BACnet references" using the EDE file.