IDM Wärmepumpe in evcc einbinden

[tomac01]

Hallo zusammen,

ich würde gerne meine IDM WP bei EVCC einbinden. Die WP kann bei PV-Überschuss sich eigenständig z.B. für die Warmwassererzeugung einschalten. Dazu müssen die Überschusswerte per MQTT der WP mitgeteilt werden.

Hat das schon mal jemand gemacht?

VG

[VolkerK62]

Dazu müssen die Überschusswerte per MQTT der WP mitgeteilt werden.

Das wäre also der Wert vom GridMeter. Topic evcc/site/gridPower

Liefert die WP auch Daten per MQTT? Dann könnte man die als AUX einrichten https://docs.evcc.io/docs/reference/configuration/site#metersaux

[tomac01]

Sorry, hab mich vertan: Die Einbindung muss per Modbus TCP erfolgen. Aber dann geht senden wie auch lesen.

[tomac01]

Ok, ein paar Daten zum Modbus/TCP habe ich auch gefunden:

Übertragung von PV Produktion (IO Adresse 78)
Übertragen von PV Überschuss (IO Adresse 74)
Wert schreiben mit Analogaktor: Befehl: 16 - Preset multiple registers Datentyp: 32-bit floating point

So'n Modbus-Protokoll ist aber irgendwie ganz schön verwirrend....

Das Modbus-Datenblatt habe ich von hier: https://www.sps-forum.de/threads/idm-navigator-2-0-modbus-tcp-auslesen.99799/

[premultiply]

Naja wie immer einfaches custom-Meter bauen:

type: custom
power:
  source: modbus
  uri: <IP>:502
  id: 1
  register:
    address: 1422
    type: holding # richtig? oder Input? Die Dokumentation sagt nix dazu.
    decode: float32 # oder float32s
  scale: 0.001 # kW -> W

[tomac01]

Super, das hilft weiter!
Hatte schon rumprobiert, aber irgendwie passte es nicht bei mir. Danke für die Vorlage.

[tomac01]

ok, falls es jemand benötigt hier der yaml-Eintag als Meter zum Auslesen der aktuellen Leistungsaufnahme der IDM mit Navigator 2.0:

- type: custom
  name: idm
  power:
    source: modbus
    uri: 10.10.40.10:502
    id: 1
    register:
      address: 4122
      type: input
      decode: float32s
    scale: 1000

[bastelfrieder]

Halo tmac01,

kannst du mir bitte deine komplette yaml mal einfügen?
Ich habe auch eine IDM Wärmepumpe, scheitere aber dass ich die Wärmepumpe als Anzeige bekomme!
Ich bekomme bei der prüfen keinen Fehler, aber es zeigt halt nichts an.

Danke und Gruß
Lars

[dubtec]

Schließe mich dem Gesagten an, @tomac01 , mich würde deine Konfiguration ebenfalls sehr interessieren. Auch bei mir erscheint der meter nicht in der EVCC Oberfläche, dass die Wärmepumpen-Daten (ebenfalls IDM) prinzipiell bei EVCC ankommen, kann ich aber anhand der Logs nachvollziehen.

@bastelfrieder Wenn Du's in der Zwischenzeit lösen konntest, würde mich das natürlich auch interessieren.

[Soph]

Hi tomac01,

ich hab etwas gebaut, dass die Überschusswerte an meine IDM reported. Da du danach initial gefragt hast, vielleicht hilft dir das ja auch: https://github.com/Soph/evcc-to-idm

[tomac01]

Hi, vielen Dank!
Probiere ich direkt mal aus.
Aktuell habe ich das über Red-Node gelöst i.V.m. Home Assistant. Da läuft auch mein evcc 😎.
Vg

[Soph]

Kannst du das eventuell auch teilen? Das habe ich auch überlegt, aber hatte NodeRed noch nicht aufgesetzt.

Und ansonsten, falls nicht gesehen, guck mal in der Readme unten, es gibt undokumentierte Modbus Register für Batterie und Hausverbrauch.

[tomac01]

Ja, klar.

Kurz zur Erklärung:
Ich habe mir einen Prozess erstellt, der meine Daten aus der Powerwall nimmt (lese ich über HomeAssistant aus) und an die Wärmepumpe (IDM) übergibt. Die Daten werden zwischendurch umgerechnet und in Float32s umgewandelt, damit sie dann über Modbus geschrieben werden.

Funktioniert bei mir ganz prima.

Hier der Flow als Bild:

Der Code zum importieren in Node-Red:
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Muss man sich natürlich auf seine Belange anpassen.

Die Modbus-Codes kann man auch in der IDM im Fachmann-Modus unter GLT Monitor einsehen. Das war mir eine recht große Hilfe, da je nach IDM-WP scheinbar mal was unterstützt wird und mal nicht. Auch kann man da direkt dir geschriebenen Werte dann kontrollieren.

[putini]

@Soph dürfte ich dich was zu deinem Projekt https://github.com/Soph/evcc-to-idm fragen.
Ich hänge am Setup Punkt fest.

Setup

clone the repository (wohin muss ich es kopieren und was genau)
run bundle install (mit welchem befehl)
set MODBUS_HOST, MODBUS_PORT and MQTT_URL to your values in evcc-to-idm.rb 
run bundle exec ruby evcc-to-idm.rb

Könntest du mir diese Schritte bitte einwenig einfacher erklären?

Danke