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gary bastin avatar image
gary bastin asked

Pylontech on 19 chipset multi with older mppts.

So my new pylontech up2500 arrived today..

Fitted them and now I'm getting GX error #48 with incompatible firmware error

My system comprises of:-

2 x multiplus 5kw 24v (19 chipset with v2.09 firmware)

5 x Ve Can mppts (150/70) firmware v2.89

Cerbo GX (Latest firmware)


Old mppts are on 250kbs ve can and pylontech batteries are on BMS can @500kbs


I have read on here that the older mppts are not supported, yet someone said that thiers were working fine on a cerbo, but would not work on my original CCGX as it only has 1 can bus.

Vrm says that DVCC is forced on (by pylontechs I assume) but I don't want to be seeing a big error message across my display all the time, I may get used to seeing it and miss an important one..

So I guess my question is... is it the mppts causing the issue, or is there a later firmware version I can run on the multis?

I did see a later version possibly.. but I only have a mk2 interface, and the firmware said it needs a mk3...

Already spent a lot of money on my system, now with new batteries and a cerbo.. really need to get to the bottom of this..


Anyone help ?

MPPT ControllersMultiPlus Quattro Inverter ChargerVE.Can
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Alexandra avatar image Alexandra ♦ commented ·
@Bazzo

By old how old are we talking?

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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

I'm pretty sure that error is coming because of the MultiPlus:

https://www.victronenergy.com/media/pg/CCGX/en/dvcc---distributed-voltage-and-current-control.html#UUID-137722ab-6d45-db8c-47f7-581403ef7d9a

Minimum VE.Bus Firmware is 422.

The MPPT firmware should be good.

All Victron VE.Can is 250kbit/s.

If the MPPT are the old ones in aluminum case like a mini MultiPlus than they are also not compatible

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gary bastin avatar image
gary bastin answered ·

Yes it is the older mppts (like a mini multi) and inhave 5 of them. Someone on the pylontech forum has similar setup but with just 2 if them and he has no issues..

I've been told my 19 chipset can be updated tonthe latest 59209 firmware with a mk3.. but you don't think that will solve it ?

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·
You are already on the latest version for the old CPU (209). DVCC needs at least 422, the current VE.Bus firmware is 497.

A 4XX firmware can't be installed on the old CPU.

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MPPT Product Page

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MPPT 150/60 up to 250/70 Manual