How do commands prioritise in a Casambi system (Control hierarchy example)?

Modified on Wed, 18 Mar 2020 at 08:50 AM

Devices within a Casambi network can have multiple different control commands applied to them simultaneously.


Example: A luminaire/luminaires could simultaneously have a timer instructing them to go to 10% light level, and a movement sensor triggered telling them to go to 100%, and a scene activated via a switch telling the lights to go to 50%.


Within the Casambi software a logical set of rules (control hierarchy) has been defined so that devices know which of the multiple commands applied to them they should actually react to.


  • Commands with the higher priority in the hierarchy are actioned (even if lower priority commands are also active).
  • Commands with the same priority level are actioned in “latest takes precedence” order.


An example of the control hierarchy is shown below. All six command types could be applied to a luminaire simultaneously, but only the highest priority (manual control) command would be actioned. If other commands are still active when the manual control command is removed, the next highest priority level command will automatically be applied to the luminaire.


The example in the attachment shows a theoretical sequence of commands being applied to a single luminaire over a 24-hour period. The light level graph indicates how the luminaire reacts to these commands.

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