KNX lighting, shutters and blinds with Link’nX: Shelly, Somfy
Link’nX connects lighting, shutters and blinds to the KNX bus in two ways: integrated devices, such as Shelly relays, covers and lights or the shutters and blinds of a Somfy box, and the KNX actions and triggers of scenarios. This page helps you choose the path according to the device and the need.
Solutions for your need
Section titled “Solutions for your need”| Need | Application | Guide |
|---|---|---|
| Control a Shelly relay, cover or light from KNX | Link’nX, Shelly gateway | Map Shelly relays, covers and lights to KNX |
| Read a Shelly’s state, power or position on the bus | Link’nX, second tab of the Shelly gateway | Read Shelly feedback |
| Open, close or position a Somfy shutter or blind from KNX | Link’nX, Somfy gateway | Map Somfy commands and states to KNX |
| Control a Somfy device in a scenario | Link’nX, Somfy actions | Control a Somfy device |
| Start a scenario on a Somfy state, such as a closure | Link’nX, Somfy triggers | Trigger a scenario on a Somfy state |
| Write values to one or more group addresses in a scenario | Link’nX, KNX actions | Prepare a KNX action |
| Start a scenario on a KNX telegram | Link’nX, KNX triggers | Create a KNX trigger |
Each device path starts with its declaration: a Shelly device with its IPv4 address and port, or a Somfy box whose discovered devices must be saved.
Good to know
Section titled “Good to know”- Shelly has no dedicated action type or trigger: to use it in a scenario, create a KNX action with the address, DPT and value of its mapping.
- Shelly covers: open/close in DPT 1.008, where 0 opens and 1 closes; set position in DPT 5.001, where 0 = open and 100 = closed.
- A Shelly toggle in DPT 1.017 inverts the state on each telegram, including at 0: a button that sends on press and on release can toggle twice. Setting a light’s brightness is not enough to switch it on either.
- For a Gen1 Shelly cover or dimmer, have the path validated by support@can-nx.com before relying on its commands and feedback.
- Somfy: position setpoints are expressed as a percentage from 0 to 100 in DPT 5.001, and a setpoint of 0 is not the Stop command. For a standard KNX shutter push button, map Up / down (KNX button) in DPT 1.008: Open and Close only react to the value 1.
- A KNX trigger reacts to a write matching the configured address and value; a simple status read does not trigger it.
Brand pages: Shelly and Somfy. To build scenarios, see Scenarios and commands.
All Lighting, blinds and shutters guides
Section titled “All Lighting, blinds and shutters guides”Devices and integrations
Section titled “Devices and integrations”- Add a Shelly device in Link’nX: IP address, port and credentials
- Shelly and KNX: status feedback, measurements and troubleshooting
- Somfy action in Link’nX: open, close or position a shutter
- Somfy TaHoma in Link’nX: declare the box and discover its devices
- Somfy trigger: start a Link’nX scenario from a shutter status