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Venus OS

Reading more standard NMEA2000 devices

Do anyone can explain how we can read more standard NMEA2000 PGNs on Venus OS?

For example this device:

The device outputs all power parameters Voltage, Current, Hz, Power, Power factor, etc., and can be connected to a generator or shore power and possibly displayed on Venus to be monitored if one does not have Victron Inverter.

I don't understand why the system will not read more PGNs. How difficult will that be as it is already reading and writing from the NMEA2000 bus?

The PGNs that AOS AC Monitor device outputs are

PGN 127744 AC Power / Current - Phase A
PGN 127747 AC Voltage / Frequency-Phase A

There is another device that can be used for alternator current monitoring:

this one outputs PGN 127508 for current

These AOS devices also have WiFi connectivity and can be connect to the WiFi network and provide data over the network for integration with AOS.

There must be a way to add more devices to Venus OS
Can someone please explain?

seamaster asked

0 Answers

Node-RED - unavailable from VRM


I'm using Node Red on Cerbo GX.

Now is Node Red unavailable from VRM Venus OS Large.
The system reported: "Too many sessions for site 166223".
Now it doesn't report anything anymore, it just loads the page.

I restarted the computer and the router, nothing helps.

Any advice?


martin-modr asked
martin-modr answered ·

4 Answers

Possible to remote start generator with bluetooth on Cerbo GX? Honda Eu70is BLE remote starter.


I have a 2020 model Honda Eu70is generator, which is equipped with a bluetooth BLE remote starter. Since the Cerbo has a built-in bluetooth module, I was thinking that some smart guys here might have some experience with the bluetooth capabilities.

I already have my cerbo connected to ruuvi BLE temperature sensors, so the cerbo should be able to pair with the Honda as well. How to start to look at this, any suggestions?

I can't find any way to search for bluetooth devices in the Cerbo Gx console.

haavard asked
edsey commented ·

0 Answers

Alternator disconnect alarm on Venus OS to prevent load dump

I have setup 4 X 300AH LiFePo4 batteries with 4 X JK BMS connected and talking to Venus OS thanks to dbus-serialbattery on RPI. This battery bank is located on a boat, but the same potential issue exists on VAN installations. Here it is:
There is a major concern if at any point the battery BMSs disconnect due to high voltage or another reason while the alternator is running, there will over voltage of way over 100V that is going to spike through the system (aka load dump) and possibly fry other equipment on the boat. In this setup I'm using WS-500 smart alternator regulator that could stop the alternator charging when the BMS is about to disconnect due to hight voltage. Even if the WS-500 executes stops charging, the alternator require about 500mS to stop generating to prevent the load dump. Right now Venus OS alarm and relay triggers ant the exact time the BMS issues disconnect command to it's MOSFETs. Obviously there is not enough time for the alternator to shutdown.

The question is can I trick JK BMS or Venus OS to trigger an alarm before any FET disconnect command is issued and is it possible to delay the FET disconnect let's say by 2sec just to be on the safe side? I'm thinking of setting the alternator stop change if possible for 50mV lower setting then the BMS disconnect voltage is set for e.g.

BMS cell over voltage protection: 3.600V

Alarm to be triggered (to stop any charging): 3.550V

Not sure if that could be currently set on Venus OS. Any thoughts?

seamaster asked

0 Answers

2nd Smart Shunt Disconnecting from Venus

I have a Raspberry Pi 3B running Venus running version v2.87

I also have 2 SmartShunts 500A/50mV on two separate USB ports. One is to monitor the coach batteries and one is to monitor the chassis battery. Both have been reporting fine but sometimes the coach battery or Chassis battery drops off the VE network. When I'm at the RV I'm able to connect via bluetooth and reset the connection but now the RV is in storage for a couple of weeks and the the coach batteries are loosing the connection. Eventually I will be adding solar to the RV. I really appreciate this ability! I will also be adding an additional Pi running Home Assistant and looking to get the data using the modbus interface.

I just updated to Venus 2.89 and was wondering if this may have been addressed.

sungunner asked
sungunner answered ·

3 Answers

Cerbo GX starting generator although SOC is above threshold

The Cerbo GX is repeatedly starting the generator with the reason given as "Low SOC" although the SOC is not lower than the start threshold and the grid is connected. After the minimum run time the generator shuts off to restart again. The SOC generator start threshold is set at 40% and it should recharge to 96%. To resolve the issue I finally turned off autostart.


This has happened before on another system and both times the generator was manually shut down the day before the event. It almost seems like the generator is try to recharge to 96% although the system is no longer below the threshold, although it's not clear why this happens hours after the manual shutdown. Is this a known bug?

This behaviour generates lots of errors as because the grid is connected, the generator is not detected. Needless to say, the user doesn't understand what is going on.

kw4np asked
kw4np commented ·

1 Answer

Synchronized Charging issues / VenusOS device throwing #66 Incompatible Device

Pulling my hair out trying to find the "correct way" to setup synchronized charging between two of my MPPT Charge Controllers. My setup:

  • SmartSolar Charger MPPT 150/100 rev2, A059, running v1.61 (latest)
  • SmartSolar MPPT VE.Can 250/85 rev2, A116, running v3.13 (latest)
  • SmartShunt 500A, A389, running v4.08 (latest)
  • MultiPlus-II 48/5000/70-48, 2623, running v500
  • Generic Venus Device (rpi), C003, running v3.00~14 (all devices connected via VE-Direct)

All of my devices are connected to my RaspberryPi running VenusOS.

The two MPPT Chrage Controllers have identical charge settings. I have reviewed this multiple times. In all of the literature I've read for synchronization I was told they need to be connected via the VE Smart Network together, I have successfully done that and there are no other devices connected to the VE Smart Network.

On my VenusOS remote console though, I get an error notification daily #66 Incompatible Device for the SmartSolar Charger MPPT 150/100 rev2, but I have no idea why! My VenusOS device has DVCC enabled if that makes any difference.

My 150/100 rev 2 shows as `standalone` in the Network Operation view, whereas my 250/85 rev 2 shows as Slave



Why am I seeing the Incompatible Device error?

hummingbear asked
JohnC commented ·

2 Answers

Installed VE.Bus Smart Dongle but Multiplus does not show up

I have a Raspberry PI setup that runs Venus OS and connects to my Ruuvi sensors and MPPT charge controllers (via Bluetooth and, respectively). I have a MultiPlus 12/3000/120-50 120V that I want to connect to the system so I bought a Victron VE.Bus Smart Dongle.

I just ran a standard UTP RJ45 from my engine room where the MultiPlus is located and connected the ethernet cable to the Dongle and the Dongle to the battery bank directly. The Victron Connect app on my phone allowed me to add the device to the network as a Smart Dongle but the Inverter doesn't show up in the system. VRM online doesn't show any devices. Venus.local doesn't show the device.

One other note: Firmware was updated from 1.07 (I think) to 1.13. I am transmitting battery voltage and temperature.

I was under the impression that I would use the Smart Dongle to see and control the inverter. Please let me know what I need to do to make that happen. Thank you.

sailorzach asked
sailorzach answered ·

1 Answer

Can I add more switches to controls on the dashboard.

I would like to add some more virtual relay/switches to the controls on the dashboard. The controls is a convenient connection to ‘Venus OS Lage/node red’.

claus asked

0 Answers

Pepwave / Victron Venus OS integration?

The Pepwave router's admin program has an open API. Has anyone done anything to integrate it with the Victron Venus OS? I would love to be able to make basic changes from the GX Touch. One example would be the fact I have two WIFi connections, one for work and one for personal. When I don't have a strong connection I like to turn off the personal WiFi so I don't have to run around turning off WiFi on all those devices.

I am a programmer, so I can write something, but I figured I would see if anyone has a starting point.

sam-carleton asked

0 Answers

New fronius Gen24 product support

Does anyone know if victron are supporting the new Symo/Primo Gen24 models?

Anybody know if they are detected and read by the VenusOS?

alan asked
cristimv edited ·

2 Answers

how feltch data PF and other parameter from ET112 to build node red dashboard

Dear team

I attempted to build my Node-red dashboard using the System parameters, however, I was unable to locate the ET112 parameter alongside other options like PF and MD.

Please give the solution for build own node-red dashboard

Dilip Kumar TD asked
Alistair Warburton commented ·

0 Answers

VE.Direct to USB , How many to do this ?

Hi , I have set up a Venos OS Raspberry Pi and the VRM portal , and connected my 100/20 smart controller via a to usb , But I have just put on order a , Smart shunt , a 150/35 smart controller and a Phoenix inverter.

I know I need one for the inverter because it doesn't have any Bluetooth and needs to cable , BUT can I make a smart network and include the 150/35 controller and the smart stunt .

Can I let the 100/20 controller pass all of the devices on smart network via the cable to the VRM , OR do I need a cable for each and every device ?

peter-3 asked
coofe951 answered ·

3 Answers

ESS - Multiplus status - VenusOS 2.92

I've just updated my system to Venus OS v2.92 and I've noticed that the status of the Multiplus is now showing "External Control" not "Bulk" as it was on the previous version.

After update I've set the system exactly the same as it used to be. Anyone else have the same issue? Is it a bug or I've missed something?

Any suggestions welcome.


mysik asked
jualom answered ·

4 Answers

Enabling forced Export to grid with 3 phase Mutliplus 2. UK

I am considering installing a 3 x 48/5000/70-50 multiplus 2 in 3 phase configuration (UK) with a large battery to enable profitable export to grid at times of high income. My understanding that this is difficult without NodeRed, but possible with NodeRed. Am I correct in this assumption? Further, does the NodeRed flow work with a 3 phase setup? I currently use NodeRed, but cannot play with the Victron flows as you need a physical inverter connected to the VenusOS to progress. Thanks in anticipation.

brookydave asked
Jason - UK answered ·

1 Answer

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