node-red-contrib-knx-ultimate/nodes/locales/de/knxUltimateStaircase.html

Control your KNX and KNX Secure intallation via Node-Red! A bunch of KNX nodes, with integrated Philips HUE control, ETS group address importer, and KNX routing between interfaces. Easy to use and highly configurable.

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# KNX STAIRCASE LIGHT

<p>Use this node to implement a KNX staircase timer. It listens for trigger pulses, drives the output actuator, mirrors the state on a status GA and honours manual override or block commands.</p>

**Group addresses**

|Property|Description|
|--|--|
| Trigger GA | Binary input that starts the timer when it receives `1`. If “0 command cancels the cycle” is enabled, a `0` stops the light immediately. |
| Output GA | Actuator driven while the cycle is active. Select the DPT that matches the load (binary, dimming, analog, …). |
| Status GA | Mirrors the active/pre-warning state. With pre-warning in *Toggle status GA* mode it will briefly change state before timeout. |
| Override GA | Forces the light ON and pauses the timer for the duration of the override signal. |
| Block GA | When true, new triggers are ignored. Depending on *When blocked* the light is either forced OFF or left untouched. |

**Timer behaviour**

|Option|Description|
|--|--|
| Timer duration | Base countdown length for the staircase cycle. |
| On new trigger | Choose whether further pulses restart the timer, extend it by the configured duration, or are ignored. |
| 0 command cancels the cycle | Ends the cycle with reason `manual-off` when the trigger returns to `0`. |
| When blocked | Decide if a block command should only inhibit new triggers or also force the output off. |

**Pre-warning**

|Option|Description|
|--|--|
| Send pre-warning | Enables the alert before timeout. |
| Pre-warning offset | Seconds before the end when the alert is triggered. |
| Pre-warning mode | *Toggle status GA* briefly toggles the status address. *Flash output* switches the output off and back on after the configured flash duration. |
| Flash duration | Time in milliseconds the output remains off when flashing. |

**Node output**

- When *Emit events* is enabled the node outputs structured objects describing `trigger`, `extend`, `prewarn`, `timeout`, `override`, `block` and `manual-off` events. Each payload includes `event`, `remaining`, `active`, `override`, `blocked` and optional details.
- Without events enabled you can rely on the KNX status GA for automation feedback.

## Inputs

|Property|Description|
|--|--|
| Flow input | Send `true`, `false`, `"open"` or `"close"` from the flow to start or cancel the timer. |
| KNX telegrams | The node reacts to telegrams for the configured group addresses. |

## Flow example

```javascript

// Start the staircase timer
msg.payload = true;
return msg;
```

```javascript
// Cancel the timer (requires '0 command cancels the cycle')
msg.payload = false;
return msg;
```

## Outputs

|Property|Description|
|--|--|
| Events (optional) | Sends the event objects when *Emit events* is checked. |

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