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Cerbo GX - internal Wifi password


The Cerbo GX can both connect to my home WIFI and it has its own Wifi Hotspot (SSID=venus-HQ2128MP2RW-ea5). Side of my box has no QR Code or password. I have a PN & SN.1) What is the Cerbo's password?
2) How do I change the Cerbo's password?
3) How do I change the Cerbo's SSID?

mje asked
mje edited ·

0 Answers

Cerbo GX ESS Mode 2 Intermittent Code 2 "Connection Error"

I have a Multiplus-II, SmartSolar MPPT, with a Cerbo GX for the brains. I've written an ESS mode 2 control program that runs on a dedicated Raspberry Pi. The program queries the Cerbo on a one-minute cycle using Modbus TCP, sleeping between queries, and gets an intermittent code 2 (Connection Error) communicating with the Cerbo several times over the course of a 24-hour day.

The error has shown up at all times of day and generally lasts for 10 minutes or less. I know the Raspberry Pi is still online because that's how I access it during the error. I know the Cerbo is still online because I can see it on the router. I suspect the Cerbo is not locked up or rebooting because it still feeds data to the VRM portal while the code 2 is going on. My program has code to retry querying the Cerbo up to four times over the course of 12.5 minutes -- all the retry loop does is reissue the "read register" request, it doesn't close or open the connection.

Any ideas? All firmware is current as of this date.

jm0278 asked
lifeingalicia answered ·

1 Answer

Cerbo GX and large TV screen with HDMI port.

As the Cerbo GX has an HDMI port, I'm pretty sure it can also be displayed on a large screen TV with an HDMI port. Has anyone done this?

Thank you in advance for your reply.

have s nice day,

Yonas Kiflom

yoki asked
wkirby commented ·

2 Answers

Cerbo GX stopped seeing smart shunt

My boat has been sitting idle for a couple of months. At some point over the last few weeks, the Cerbo GX suddenly was not longer able to see the smart shunt connected via a VE Direct cable (it has worked flawlessly for 1.5 years). I checked everything including reconnecting the VE cable on each end, updated all firmware on cerbo and smart shunt and testing out the shunt via bluetooth. I was not able to reset the shunt (by removing the red power cable) yet and not sure if that will help. Is there any other suggestion?

crholliday asked
crholliday commented ·

1 Answer

On the calculation of the power values


My Victron system uses two power meters and has a fronius PV with AC-1-out coupled.

The first power meter is on the handover point to the grid, hence its configured as role gridmeter. Needless to say that the fronius is configurd as inverter. Now comes the tricky part. Before the Victron System came I had an AC-coupled Varta Element 6 battery. This battery I still have. I wired it like the Fronius - so its coupled to AC-1-out but with the second power meter which has the role "AC Loads".

I know this is already a bit odd. Yet I have four questions, which I hope somebody can enlighten me.

How does the Cerbo calculate the values I see on the remote console? The values for PV and grid seem to be valid, but AC loads is always always 0 .. 200 and "Critical Loads" seems to be all what is pulled from AC-out (of the inverter).

Can the Cerbo distinguish between loads on AC1-out and loads on AC2-out? I ask because "Critical Loads" seem to be both for. Regardless if I draw power from AC1/2-out, all seems to end under "Critical Loads".

Obvious question: I know the Varta Element 6 is odd man out, especially AC-out coupled, but is "AC Loads" a good role for this? Or should I go for somthing else?

I tried setting the Varta Battery Meter to role "PV Inverter", yes, it added to the Fronius, but I still had "AC Loads" in the diagram. What actually is the meaning of "AC Loads", compared to "Critical Loads"?

Odd questions, for an odd system...

sesshoumaru asked
sesshoumaru edited ·

1 Answer

SOC abhängiges Relais

Hallo zusammen,

ist es möglich im Cerbo GX einen der Relaisausgänge abhängig vom SOC der Batterie ein und aus zu schalten?

chris280580 asked
Martin answered ·

2 Answers

Cerbo GX with Digital Multi Control - any benefit of having both?


I am installing a Multiplus II on my boat. I already have installed two MPPT solar chargers and a Smart Shunt. I have bought both a Cerbo GX with the 50 touch display and a Digital Multi Control for the Multiplus II. I realize that some of the Cerbo touch functions are disabled and controlled by the Digital Multi Control if both are connected per section 2.4.1 of the Cerbo manual.

My question is this: Do I need the Digital Multi Control if I have the Cerbo GX with the 50 touch display? Is there anything that the Digital Multi Control can do that the Cerbo GX with the 50 touch display can not do?

Thank you,


ralphd asked
hjohnson answered ·

4 Answers

Can I mix MPPTs with VE.Direct and VE.Can connected to the Cerbo in ESS?


I am planning an ESS system with a Cerbo.

Can I mix MPPTs with VE.Direct and VE.Can ?

For example, one MPPT RS450 /200 (VE.Can) and several MPPT 150/45 (VE.Direct) connected to the Cerbo?

Thanks in advance!

oe5nvl asked
oe5nvl commented ·

1 Answer

Smartsolar MPPT 150/85 VE.Can rev2

Guten Abend,

über mein Cerbo GX wird der tägliche Verlauf nur für heute und gestern angezeigt. In der App direkt mit dem MPPT verbunden sind alle Tage seit Inbetriebnahme vorhanden. Firmware v3.10


dirkvongracefacrory asked
dirkvongracefacrory commented ·

0 Answers

Cannot connect to VRM Portal

Hello, About one day ago my Cerbo GX stopped communicating with the VRM Portal. I have reset the system, verified it is connected to the wifi hotspot, and it still does not connect. All else seems to be functioning nominally. I have included some screenshots of what I am seeing. Any ideas on how I should proceed to get things back online will be much appreciated.






All the communications errors listed below up until the most recent on 6.30.22 - were from driving through areas without cellular coverage. The error on 6.30 at 5:46 was the start of this problem but the RV was parked in my driveway and I was asleep when this error occurred so I have zero ideas on what has caused it.


snakesteve asked
snakesteve answered ·

1 Answer

monitoring a 2nd multi

I have one battery bank with a multi serving the house loads

I want to connect a 2nd multi to the same battery bank and ac in serving only the induction oven

They will both be individual, so no parallel, can I view the 2nd multi on the Gerbo?

jan-kees asked
Alistair Warburton answered ·

3 Answers

Dual MPPT connected to Cerbo GX via VE.Can results in almost zero output from second MPPT

My system consists of a Multiplus II, two MPPT 250/100, SmartShunt 500A and a Cerbo GX. The MPII is connected to Cerbo via VE.Bus. The SmartShunt is connected to Cerbo via VE.Direct. The two MPPT are daisy chained to the Cerbo via VE.Can with terminators at each end.

My problem is that when the two MPPT are connected to the Cerbo, only one of them produces normal output and the other one is near-zero output. As soon as I disconnect the VE.Can, both MPPT produce normally as confirmed via VictronConnect. Plug VE.Can back in and it goes back to near-zero. This happens whether VE.Smart networking is configured or removed.

I have tried every possible combination of wiring and configuration and the end result is always the same. Is this a bug in the software or am I missing some fundamental configuration problem? If I switch to using VE.Direct connections to the Cerbo will I still have the same problem?

akbast asked
trevor-bird answered ·

1 Answer

Grid feeding Problem

Hi to everybody willing to help me!

I have a Problem:

My setup:
Multiplus II
two Chargecontrollers connectetd VE Direct to a
Cerbo GX
EM24 Meter.

When I switch on the Grid power and the Multiplus starts feeding into the Grid, everything breaks down.
The Energy is flowing in every direction, back and forth from the battery and the MPII is jumping Power up and down. (If I am only drawing power from the grid everything is fine)

Also the LEDs on the chargecontrollers are blinking and it is switchin nonstop between Bulk and float mode.

If I disconnect one chargecontroller from the CerboGx everything is suddenly fine!
(Although the chargecontroller ist still delivering power and it is fed to the grid)

Where should I start looking? Everythink is updated and works great if
A) The grid is connected and the feed grid is disabeld
B) VE Direct cabel is not connected to the larger Chargecontroller.

Thank you!

testor90 asked
marekp commented ·

5 Answers

Cerbo GX and multiple battery banks

My sailboat has two battery banks. One is for my engine (it is an electric boat, so this would be a 48V 440A bank) and the other is for the house (12V 800A bank). Both have separate charge sources. Would one Cerbo GX handle this, or would each bank require a separate Cerbo GX? Also, would I require two GX Touch 50's?

ftlsailor asked
caver answered ·

3 Answers

Kohler 7.5 Quattro Cerbo GX With Load Sensing Gen Start

My genset is controlled "start/stop" by sensing the presence or absence of a load on the line. It also has a two wire start/stop. The two wire will not stop the genset if there's a load present. My question is, will the Quattro AC IN-1 contactor open and close as necessary for my genset when programmed with the gen start/stop features in the Quattro or Cerbo GX or do I need to add a external contactor?

Thank you

burnscraft asked
marc-heide answered ·

4 Answers


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