Reset behaviour and cyclical transmission

Setting the status when the bus/mains voltage returns or after ETS programming

Any status can be transmitted to the KNX after a bus or mains voltage return or after an ETS programming operation, provided the "Transmit" flag is set on the communication object and the reset behaviour of the underlying functions is not configured to "no reaction". In these cases, the status telegram can be transmitted with a time delay, whereby the delay time is set globally for all DALI systems together.

The "Behaviour after bus/mains voltage return" parameter is separately available for each DALI system on the parameter page "DALI systems -> DALI system... -> Status" for each status function.

  1. Activate the parameter.
  • The status is transmitted after a delay after the bus or mains voltage returns or an ETS programming operation. No status is transmitted during a delay even if the state changes during this delay.
  • The delay time is started immediately after the ETS programming operation is completed, i. e. already before the device is initialised. If the initialisation of the DALI actuators takes longer than the delay time configured in the ETS, the status is transmitted only after the initialisation phase has been completed.
  1. Deactivate the parameter.
  • The status is transmitted immediately after the bus or mains voltage returns or an ETS programming operation directly during the device initialisation.

Setting the cyclical transmission of the switching status

Each status can be transmitted also cyclically in addition to being transmitted when updated.

The "Cyclical transmission" parameter is separately available for each DALI system on the parameter page "DALI systems -> DALI system... -> Status" available for all status functions.

  1. Activate the parameter.
  • Cyclical transmission is activated. The cycle time is defined uniformly for all status messages of the DALI system by the parameter with the same name on the same parameter page.
  1. Deactivate the parameter.
  • Cyclical transmission is deactivated so that the status is transmitted to the KNX only if a state is updated.

No cyclical transmission takes place during an active delay time or device initialisation.

With the switching status and brightness value status, the cyclical transmission after a device reset does not begin until a defined state is set for the DALI system by the parameters "After ETS programming operation" or "After bus/mains voltage return". If the reset behaviour is set to "no reaction", the cyclical transmission for the switching and brightness value status does not begin until the DALI system has been controlled at least once via the KNX or by manual operation.