Why can I only read but not send EIB telegrams?

FAQ #101207

When working with a Siemens 5WG1 148-AB04 connected on e.g. a PCD3.F121 module, the following points need to be considered for successful operation.


In the above mentioned constellation EIB telegrams are received but the transmission of EIB telegrams is not working.

This phenomenon can be caused by either an incorrect wiring or if the EIB group address of the BCU unit (coupler) doesn't fit.

Make sure that

  • the EIB address of the BCU unit fits the EIB network
  • the DTR/DSR lines are connected as in the wiring shown below 

Wiring of PCD3.F121 to BCU FT1.2



Communication / EIB

Last update: 21.05.2015 11:10

First release: 08.05.2009 09:22

Views: 3474

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