field test

PV Modules

A real world comparison between Mono, Poly, PERC and Dual PV Modules.

Realtime data
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Installation date: 09-03-2020


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* This is a field test and the results are specific for this installation on this location, please research which is the best solution for your own situation as the results can be different based on environmental influences.

Venus OS v2.23 – VE.Bus error 11 details & more

Good morning,

Today we are releasing version 2.23 of Venus OS – the software which is at the heart of the Color Control GX, Venus GX, Octo GX and the CANvu GX. A nice page outlining those products and comparing them is available here. Also we will release VE.Bus version 455 today, for the MultiGrid and MultiPlus-II inverter/charger models.

Included in this update are various improvements; including that the user interface will not show details of VE.Bus Error 11.

VE.Bus Error 11

This error only applies to the MultiGrid and MultiPlus-II models: the inverter/chargers with a dual backfeed relay. For ESS systems, a grid-code is selected in VEConfigure, and then as part of grid-code compliance; the device verifies that its internal relays and measurement circuitry functions properly. When this test fails; Error 11 shows. Quite often, the error can be tracked down to an installation error (swapped Phase and Neutral wiring for example), but there were also some software issues; and the details of Error 11 not being visible was not helping. Today we are taking care of all that. A short list of related firmware releases:

  1. VE.Bus firmware 454 – February 8th – Adds detailed Error 11 reporting.
  2. Venus OS v2.23 – today – Adds detailed Error 11 reporting.
  3. VE.Bus firmware 455 – today – Fix false Error 11 of the type “AC0/AC1 mismatch” and “UMains error”.

Conclusion: if you have a VE.Bus Error 11 and have already double-checked the wiring, then update all to the firmware released today; which is likely to solve the issue. And if it doesn’t – then at least you will have far more information to help you resolve it.

Full changelog



Venus GX:


And then there are a few more improvements, enhancing system stability and robustness.

For those who were hoping to find the Marine MFD chartplotter integration, as explained here in a blog, I have to disappoint you, it’s not ready yet; so not in this release. We can report good progress on that project though; and I still expect to release it at the end of this quarter for Navico and Garmin. As mentioned during the announcement, Raymarine will follow a bit later.

How to update?

You can find information about how to install the new version of Venus OS here. For the full changelog, visit Victron Professional.

In conclusion, I wish you a good day!

Matthijs Vader

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