@Garf:
Mir auch nicht, deshalb habe ich mir deinen Flow mal genauer angesehen. Du hast einige Dinge da drin, die überhaupt keine Funktion haben. Aus dem gesamten Strang mit dem json-Node kommt kein Ergebnis heraus. `
Ich möchte es mal wie unsere Politker halten. Was interessiert mich mein Geschwätz von gestern. Kurzum meine Bewertung ist falsch, der Fehler lag auf meiner Seite. Nachdem mich rewenode auf den richtigen Weg gebracht hat, habe ich meinen Fehler erkannt und korrigiert. Zu meiner Entschuldigung schiebe ich die Schuld mal auf die inject-Node Ersatzvornahme für das MQTT-Input-Node.
Als Wiedergutmachung hier die gewünschte Funktion:
@Der_LuLe:
Wie kann ich das umstellen das es mit 2 MQTT-Werten arbeitet. Also: "Rücklauf+10" > "Vorlauf" dann Aus, sonst An. `
! ````
[{"id":"4a6fddc5.f5f2ac","type":"json","z":"de87f48f.fcaa78","name":"","property":"payload","action":"","pretty":false,"x":270,"y":960,"wires":[["15c68f96.25799"]]},{"id":"8706c33.a5797c","type":"debug","z":"de87f48f.fcaa78","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","x":710,"y":1040,"wires":[]},{"id":"f3cfb437.1faf6","type":"inject","z":"de87f48f.fcaa78","name":"VT aus MQTT","topic":"","payload":"{"Time":"2019-01-01T19:39:30","AM2301":{"Temperature":22.7,"Humidity":57.5},"TempUnit":"C"}","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":110,"y":960,"wires":[["4a6fddc5.f5f2ac"]]},{"id":"33238960.049676","type":"inject","z":"de87f48f.fcaa78","name":"RT aus MQTT","topic":"","payload":"{"Time":"2019-01-01T19:39:30","AM2301":{"Temperature":19.7,"Humidity":57.5},"TempUnit":"C"}","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":110,"y":1020,"wires":[["2ae5b151.4f6ea6"]]},{"id":"2ae5b151.4f6ea6","type":"json","z":"de87f48f.fcaa78","name":"","property":"payload","action":"","pretty":false,"x":270,"y":1020,"wires":[["752c058f.78feb4"]]},{"id":"15c68f96.25799","type":"change","z":"de87f48f.fcaa78","name":"VT_Temp_Istwert","rules":[{"t":"set","p":"VT_Temp","pt":"flow","to":"payload.AM2301.Temperature","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":470,"y":960,"wires":[["62a72741.bd956"]]},{"id":"752c058f.78feb4","type":"change","z":"de87f48f.fcaa78","name":"RT_Temp_Istwert","rules":[{"t":"set","p":"RT_Temp","pt":"flow","to":"payload.AM2301.Temperature","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":470,"y":1020,"wires":[["62a72741.bd956"]]},{"id":"62a72741.bd956","type":"function","z":"de87f48f.fcaa78","name":"Temp aus MQTT","func":"var dt = flow.get("SW_dt"); // Vorgabe Temperaturdiffernz VT zu RT\nvar VT = flow.get("VT_Temp"); //Messwert Vorlauftemperatur\nvar RT = flow.get("RT_Temp"); //Messwert Ruecklauftemperatur\n// Wertevergleich\n\nnode.send({payload: {"VT_Temp": VT,\n "RT_Temp": RT,\n "SW_dt": dt,\n "RT + dt": (RT+dt)}});\nif ((RT+dt) > VT) {\nmsg.payload = false; // Boolean Wert\n//msg.payload = 0; //Integerwert/Binaerwert\n}\nelse\n{\nmsg.payload = true; // Boolean Wert\n//msg.payload = 1; //Integerwert/Binaerwert\n}\nreturn msg;","outputs":1,"noerr":0,"x":710,"y":988,"wires":[["8706c33.a5797c"]]},{"id":"6d590582.38d554","type":"inject","z":"de87f48f.fcaa78","name":"SW Temperatudiffernz VL<-->RL","topic":"","payload":"10","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":168,"y":1080,"wires":[["9672b859.1c6458"]]},{"id":"9672b859.1c6458","type":"change","z":"de87f48f.fcaa78","name":"SW Temp_Differenz","rules":[{"t":"set","p":"SW_dt","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":480,"y":1080,"wires":[object Object]}]
Ich habe es zum besseren Verständnis versucht so einfach wie möglich zu halten. Die ersten beiden inject-Nodes musst Du durch deine MQTT-Input Nodes ersetzen und im dritten inject Node kannst Du die gewünschte Temperaturdifferenz einstellen. Im Moment stehen dort die gewünschten 10K.
An dem Strang kannst Du dann auch jederzeit ein Dashboard numeric Input Node anschließen.
