tausendsassa avatar image
tausendsassa asked

VE.Direct Multiplus II GX - to Raspberry with Venus (German/English)

Hallo an alle hier im Forum,

ich bin neu hier und habe schon sehr viel gelesen. Ich hoffe in Zukunft weitere Infos zu finden und anderen Mitgliedern ggf. auch mit Rat und Tat zu Seite stehen zu können.

Aktuell rüste ich meine bestehende PV Anlage auf (Bestehend: Fronius Symo WR on Grid mit 9,3kwp – Erweiterung: 3x Multiplus II + Speicher + MPPT…)
Da noch nicht alle Komponenten vor Ort sind und ich auf den Elektriker warten muss, habe ich bis jetzt nur den Mulitplus II GX probeweise angeklemmt und ein Raspberry PI mit Touchscreen montiert, um die Kommunikation vorab zu testen.

Nach erfolgreicher Installation und konfiguration der Raspberry kann ich meinen Symo Wechselrichter sehen, aber den, über VE.Direct angeschlossenen Multiplus II GX, sehe ich nicht.
In der Online Konsole sowie im VRM sehe ich mein Raspi und auch den Multiplus.

VE.Direct am MP II GX:
Hier habe ich getestet ob 5V zu messen sind, zwischen den äußeren PINs -> keine Spannung

Kann es sein, dass man das GX Modul erst aktivieren muss? Ich kann im Netz und in der Anleitung nichts dazu finden.

Viele Grüße


Hello to all here in the forum,

I am new here and have already read a lot. I hope in the future to find more information and other members may also be able to help with words and deeds.

Currently I am upgrading my existing PV system (Existing: Fronius Symo Inverter on Grid with 9.3kwp - Extension: 3x Multiplus II + storage + MPPT...).
Since not all components are on site and I have to wait for the electrician, I have so far only the Mulitplus II GX test connected and a Raspberry PI with touchscreen mounted to test the communication in advance.

After successful installation and configuration of the Raspberry, I can see my Symo inverter, but I do not see the Multiplus II GX connected via VE.Direct.
In the online console as well as in the VRM I see my Raspi and also the Multiplus.

VE.Direct on the MP II GX:
Here I tested if 5V can be measured, between the outer PINs -> no voltage.

Can it be that you have to activate the GX module first? I can't find anything about this on the net or in the manual.

Many greetings

Multiplus-IIRaspberry PiVE.Direct
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3 Answers
gazza avatar image
gazza answered ·

I am assuming you are running Venus on the RPI..? You can't run 2 GX devices at the same time, within the same installation. The Multiplus 2 GX will have its own WiFi access point when unboxed, which will allow you to find out the VRM ID for that GX device from the local console.

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wkirby avatar image
wkirby answered ·

The VE.Direct port on the MultiPlus II GX is for connecting MPPT or BMV / SmartShunt. You cannot connect another GX device here (in this case your RaspberryPi), it is not designed for that.
You need to use the GX device within the MultiPlus II GX for this system. You RaspberryPi has no place to go here, maybe you could use it for a separate system.

You would not measuer 5V on the outer pins of the VE.Direct port of the MultiPlus II GX because it is isolated. Power for this side of the isolator is derrived from the MPPT or BMV / SmartShunt.

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tausendsassa avatar image
tausendsassa answered ·

thank you very much for the answers.
Now I understand it.

Is there a way to connect a touchpanel local to the Multiplus II GX? Unfortunately, the Multiplus does not have HDMI output.
Actually I just want a monitoring in the house to see if everything is running properly.

On my iphone I can't see the bottom line running VectronConnect App and when I log in to the VRM portal I regularly get the error message that an unwarranted error has occurred and that I should try later.

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wkirby avatar image wkirby ♦♦ commented ·

If you want to see the console in the house, then you simply need to browse to the LAN IP address of the GX device. Then you get a full console via web page:


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