Color

The gateway can track the set colour of a group and single device by means of separate objects and transmit it also to the KNX, provided the bus voltage is switched on. The data format of the status objects depends on the selected colour space (RGB[W] combined, RGB[W] individually, HSV[W]) and is based on the format of the input objects.

The gateway determines the object value of the status objects each time the colour is affected. Even if a group or single device is controlled by the scene function, a colour wheel sequence or the CTM matrices, the gateway tracks the colour value and updates the status objects.

The status objects are updated during the following events...

  • after a completed relative or absolute colour dimming process. If the group or single device is switched off and a colour dimming process is carried out, the gateway updates the status of the colour, provided the parameter "Switch-on colour" is configured to the "track" setting.
  • immediately after switching on a group or single device, but only if the colour differs from the last value that was fed back,
  • at the beginning of a scene recall (whenever this changes the colour),
  • in the event of an ongoing colour wheel sequence or CTM daytime colour temperature sequence, provided changes to the colour occur.

When the bus/mains voltage returns or after an ETS programming operation, the status objects of the colour are first initialised with the value "0". After the device initialisation (indication of "--" on the display), the gateway evaluates the parameters for the reset behaviour and sets the state of the groups and single devices accordingly and updates the status objects.

Activating the colour status

The colour status is implemented with active signalling objects so that the object values are transmitted also directly to the KNX during each update. The ETS automatically sets the communication flags of the status objects required for proper functioning as a standard feature.

If the "Transmit" flags of the status objects are deleted, the objects can be used as passive status objects.

The "Colour" parameter is separately available for each group or single device on the parameter page "DALI system... -> Configuration groups -> [x] Group name -> Status" or "DALI system... -> Configuration single devices -> [x] Device name -> Status" if the enabling has taken place on the corresponding parameter page for the status.

  1. Activate the parameter.
  • The objects for the colour status are enabled. The colour status is transmitted as soon as the status is updated.
  1. Deactivate the parameter.
  • No colour status is available.

Setting the updating of the colour status

In the ETS, it can be defined when the gateway updates the feedback values for the colour status. The object values updated last by the gateway are then actively signalled to the KNX, provided the "Transmit" flags are set on the communication objects.

The parameter "Updating of the object value" is separately available for each group or single device on the parameter page "DALI system... -> Configuration groups -> [x] Group name -> Status" or "DALI system... -> Configuration single devices -> [x] Device name -> Status".

  • The colour status must be enabled.
  1. Set the parameter to "after each update of the input objects for absolute colour temperature control".
  • The gateway updates the feedback value in the objects as soon as new telegrams are received to specify a colour value or values are specified by an internal function of the gateway (e.g. scene function, colour wheel sequence, HCL matrices). The default colour value does not necessarily have to change. Consequently, corresponding colour status telegrams are also generated, for example, in the event of cyclical telegrams to the input objects.
  1. Set the parameter to "Only if the feedback value changes".
  • The gateway updates the colour status only when the telegram values change. If the telegram values do not change (e. g. in the case of cyclical telegrams to the input objects with the same telegram value), the status remains unchanged. Consequently, no telegram with the same content is output repeatedly either.