Timer nur bei Statusänderung neu starten

Hallo liebes Forum,
ich versuche einen Sonnenschutz mit meinen Rollläden zu realisieren.
Das Herunterfahren der Motoren klappt bereits.
Es geht um die Prüfung für das verweilen im aktuellen Status oder das wieder Hochfahren der Motoren.
Mein Trigger ist die Helligkeitsänderung. Wenn die aktuelle Helligkeit > Vorgabewert, dann soll so lange für 20 Minuten gewartet werden, bis die aktuelle Helligkeit mindestens 20 Minuten unterschritten ist.
Da mein Trigger aber die Helligkeitsänderung ist, fängt der untere Timer immer wieder neu an…
Ich suche als etwas um auf “status changed” mit Eingang zu triggern oder jede andere Lösung. :wink:

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Ich würde einfach eine normale trigger Node nutzen.