--- title: "Configure KNX Scene Panel for Dimming Control" slug: "configure-knx-scene-panel-for-dimming-control" updated: 2025-12-03T02:25:14Z published: 2025-12-03T02:25:14Z canonical: "knowledge.akuvox.com/configure-knx-scene-panel-for-dimming-control" --- > ## Documentation Index > Fetch the complete documentation index at: https://knowledge.akuvox.com/llms.txt > Use this file to discover all available pages before exploring further. # Configure KNX Scene Panel for Dimming Control You can configure a KNX scene panel to perform dimming control for a dimmer module. In this guide, the Aura Series K32 Button Panel (referred to as the button panel) and the 4-Gang 0-10V Dimmer Module (referred to as the dimmer module) are used as examples. The guide covers the wiring topology, ETS configuration, and basic troubleshooting. The same configuration method applies to other KNX scene panels and dimmer modules - refer to their respective product database manuals when performing similar setups. ## Overview ### Wiring Topology ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-fsgmn6tr.png) ### Intended Functions - Button 1 on the button panel controls Channel 1 of the dimmer module. - A short press toggles the light ON/OFF. - A long press adjusts brightness (relative dimming). - The LED indicator on Button 1 reflects the light’s current status: - Lit when the light is on. - Off when the light is off. ## ETS Configuration ### Create a Project 1. Open ETS and click **New Project**. 2. Enter a project name and confirm to create the project. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-3m1x819v.png) ### Add Devices to the Topology 1. Open the project and switch to the **Topology** view. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-k6trccor.png) 1. Click **Panels > All Panels > Catalog**. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-yo0c4vmj.png) 1. In the **Catalog** panel, find the button panel and dimmer module under the Akuvox manufacturer folder, then add them to the topology. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-4kjx6edo.png) > [!WARNING] > **TIP:** > > For more detailed instructions, refer to [Start a KNX Project with ETS](/v1/docs/start-a-knx-project-with-ets). ### Configure Device Parameters #### Button Panel 1. Click on the button panel in the Topology view, go to **Parameters > Button**, and set **Function of Button 1** to **Dimming**. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-yyhb7st3.png) 1. Go to the **Button1** page, then: - Set **Reaction on short operation** to **Toggle** (switch control). - Set **Reaction on long operation** to **Brighter/Darker** (brightness adjustment). ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-ha0lz989.png) 1. Configure the LED indicator to follow the value of the linked group object: - Set the **LED indication color** to **Indicate Key Switch.** - Set the **LED color** to **Off** when the object value is **0**. - Set the **LED color** to **White**(on) when the object value is **1**. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-a1uafkkl.png) 1. Open the **Group Objects** tab to view the objects that will be linked. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-7cvpflrn.png) #### Dimmer Module 1. Click on the dimmer module on the Topology view, go to **Parameters > CH A General** page, then activate **Channel A**. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-bkaf8ar0.png) 1. Set the **Status report** to **It’s new status** to enable the dimmer module’s switch status feedback. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-fsuhmwft.png) 1. Open the **Group Objects** tab to view the objects that will be linked. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-n0pqfxb1.png) ### Create and Link Group Addresses 1. Switch to the **Group Addresses** view. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-mk0vhgph.png) 1. Create the following group addresses: On/Off Control, On/Off Status, and Relative dimming. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-8yphnkk4.png) 1. Link each group address to the appropriate group objects: - Button Panel ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-b444ibxe.png) - Dimmer Module ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-hv3v4762.png) > [!NOTE] > **NOTE:** > > Link the Switch Status object of the dimmer module to the Indicator object of the button panel. This allows the button panel LED to reflect the light’s ON/OFF state correctly. > [!WARNING] > **TIP:** > > For more detailed instructions, see Link Group Objects with Group Addresses[Link Group Objects with Group Addresses](/v1/docs/link-group-objects-with-group-addresses). ### Download Configuration 1. Follow the steps below to activate the programming mode on the devices. - Button Panel - Press and hold the top-left and bottom-right buttons simultaneously for about 5 seconds. - The orange LED rapidly flashes 5 times, indicating that programming mode is active. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-7n81zv5n.png) - Dimmer Module - Press the button on the bottom right. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-jfpfhnk4.png) 1. Click **Download > Download All** In ETS to transfer the configuration. ![descript](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/configure-knx-scene-panel-for-dimming-control-image-k54ljlsr.png) > [!WARNING] > **TIP:** > > For more details on KNX downloads, refer to [Download Project Data to HyPanel-KNX](/v1/docs/download-project-data-to-hypanel-knx). ## Test and Troubleshooting ### **Function Verification** - Short press and long press the button on the button panel to verify that the dimmer module responds correctly. - Check whether the button panel LED indicator synchronizes with the load device’s ON/OFF state. ### **Troubleshooting** If the switch control or LED indication does not work properly after downloading, follow these steps: 1. Check group address links - Ensure each group address is linked to at least two group objects. - Use ETS Diagnostics to monitor telegram transmission and reception for troubleshooting. 1. Check wiring - In ETS **Diagnostics**, open **Device Info** to confirm KNX bus wiring is normal. - Manually press the button on the dimmer module to verify that the load device operates properly.