Garage Door configuration

The KNX Garage node drives a motorised door using dedicated group addresses for direct commands, toggle impulses, hold-open / disable logic and safety sensors. It can optionally re-close the door after a timeout, emit movement / obstruction indicators and report events to the Node-RED flow.

Group addresses

| Purpose | Property | Notes | | โ€“ | โ€“ | โ€“ | | Direct command | Command GA (gaCommand) | Boolean GA: true opens, false closes. Default DPT 1.001. | | Toggle impulse | Impulse GA (gaImpulse) | Rising edge toggles the door (default DPT 1.017). Used automatically if no direct command GA is supplied. | | Hold-open override | Hold-open GA (gaHoldOpen) | When true the door remains open and the auto re-close timer is cancelled. | | Disable node | Disable GA (gaDisable) | Blocks any command sent by the node while true (maintenance/manual operation). | | Photocell sensor | Photocell GA (gaPhotocell) | Should go true when the beam is interrupted; the node reopens and raises obstruction. | | Movement indicator | Moving GA (gaMoving) | Optional. Pulsed when the node commands movement so other devices can follow the state. | | Obstruction flag | Obstruction GA (gaObstruction) | Mirrors the obstruction state for supervision or alarms. | All addresses accept custom DPTs if different datatypes are required.

Automatic re-close

  • Enable Auto re-close to start a timer whenever the door becomes open.
  • The countdown is cancelled while hold-open or disable are active.
  • When the timer expires the node sends the close command (or impulse) and emits an auto-close event.

    Flow example

    ```javascript

// Open the door msg.payload = โ€˜openโ€™; return msg;


```javascript
// Close the door
msg.payload = 'close';
return msg;

// Toggle the door state
msg.payload = 'toggle';
return msg;

Safety handling

  • A photocell true during closing immediately triggers an open command and sets the obstruction flag.
  • External writes to the obstruction GA update the internal state so dashboards stay in sync.
  • Movement pulses can be consumed by lighting, ventilation or alarm logic.

    Flow interaction

  • Injecting msg.payload with true, false, 'open', 'close' or 'toggle' controls the door from the flow.
  • With Emit events active the node outputs structured messages: ```

{ topic: , event: 'open' | 'close' | 'toggle' | 'auto-close' | 'obstruction' | 'disabled' | 'hold-open', state: 'open' | 'closed' | 'opening' | 'closing', disabled: , holdOpen: , obstruction: } ```

These events are useful for dashboards, logging or custom automations around the garage door.