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Mateusz Borycki (Unlicensed)

Mateusz Borycki (Unlicensed)

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  1. Find the following nodes in the Node-RED palette:

    1. DALI2 Devs Common

    2. Vertex vertex actionVertex Feedback

    3. vertex feedback

    4. Daylight Harvesting

    5. Vertex vertex cluster

  2. Drag the nodes and drop them onto the workspace.

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5. Go to the Daylight Harvesting node. Select the Feedback group which will be is controlled and give gives feedback on the current lux value. Set the number of luxes in the Daylight Harvesting value field and choose toleration (in luxes).

Info

Note that the value of luxes in the Daylight Harvesting may not correspond to the actual brightness intensity on e.g. the desk. You should do a quick calibration. Use lux meter to measure the brightness intensity on the desk.

How to do the daylight harvesting calibration:

  1. Set brightness in the vertex action node to get e.g. 500 luxes on the desk (- measure this using a lux meter).

  2. Note the Illuminance level below the DALI2 Devs Common node in the Node-RED workspace.

  3. Enter this value in the Daylight Harvesting Value field in the daylight harvesting node.

  4. If you need, check other configurations e.g. 1000 luxes and create a table with values.

6. Go to the vertex action node. Set the mode as Direct Valueand as action select Set brightness (scale logarithmic) as the action.Select the same group as for in the Daylight Harvesting node.

7. Uncheck the Priority In the vertex action node, uncheck the Default prioritycheckbox and set the priority Priority as 0. This enables the daylight harvesting function to operate after the lighting will turn on (triggered by multisensor or by switch).

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Vertex action node configuration for Daylight Harvesting

8. Go to the vertex feedback node. In the group field, select the same groupas in the vertex action and daylight harvesting nodes.

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