On 2023/05/10 at 6:23 AM, Murariu said:

hello again Coulomb, I opened the display and tried to take a picture of the processor,

Ah. It's good to know that you have the GigaDevice processor in the removable display, but for MPPT problems, it's all about the DSP chip inside the inverter's case.

From the Chipset Chatter post:

8 hours ago, Murariu said:

thank you! please send me the download link…

Sorry, there are many variants and they are scattered throughout this 17 page thread. You'll have to do some reading to figure out what version you want. Remember that 90.06 and its patched variants will only work if you have a '2809 DSP. Unfortunately, I can't tell from your present main firmware (46.08) whether you have a '2809 or '28066 DSP. Please post the results if you do decide to open up your case and check.

Edited May 11, 20233 yr by Coulomb

Acum 12 ore, Coulomb a spus:

Ne pare rău, există multe variante și sunt împrăștiate în acest fir de 17 pagini. Va trebui să citiți puțin pentru a vă da seama ce versiune. Aminți-vă că 90.06 și variantele corectate vor funcționa numai dacă există un DSP '2809. Din păcate, nu pot spune din firmware-ul principal actual (46.08) dacă există un DSP „2809 sau „28066”. Vă rugăm să postați rezultatele decideți să deschideți cazul și să verificați.

Salutare. s-a deschis ca sa vad varianta ta DSP, voi incerca sa incarc niste poze. Cu siguranta voi posta pentru ca sunt multe altele ca si in cazul meu. mulțumesc!

Edited May 11, 20233 yr by Murariu

 

17 hours ago, Coulomb said:

Ah. E bine de știut că ai procesorul GigaDevice în display-ul detașabil, dar pentru probleme MPPT, totul ține de cipul DSP din interiorul carcasei invertorului.

Din postarea Chipset Chatter :

hello again CouLomb!

I opened it and I have version 2809 at DSP,so it should work,

what do you say?
 

thank you very much!

Edited May 11, 20233 yr by Murariu

Acum 2 minute, Murariu a spus:

 

buna din nou CouLomb!

L-am deschis și am versiunea 2809 la DSP, așa că ar trebui să funcționeze,

ce zici?
 

mulțumesc foarte mult!

 

Edited May 11, 20233 yr by Murariu

19 hours ago, Murariu said:

I opened it and I have version 2809 at DSP,so it should work,

what do you say?

Sorry for the delay, it's been a busy day patching King firmware.

Yes, you could try any of the patches in this thread that are based on 90.06. I would suggest the very first patched firmware in the very first post, unless you have particularly low PV voltage (e.g. few panels), in which case try the 100 V MPPT version a few posts later. If you are more interested in shade management, there is a separate thread on that.

Thanks for convincingly confirming that 46.xx is for the '2809.

has anybody tested the 72.68 version? mppsolar has not yet released this version on their website, so for now only on the voltronic sever can be found. because of a recently failed update on a sv4 (error 32) I'm afraid to be the first one to try it (PS: I see some fellow Romanians here  )

confusion increasing....

So, the 72.68 was first released on 2th May, with the name MAX_HV_8k 72.68.7z, containing the file "MAX_HV8K 72.68.inv"

 and now 5th May, another 72.68 was released, with the name "MAX8K_DSP_7268.7z". Inside we have the "MAX8K_7268.inv" file and a pdf named "MAX DSP 28066 Firmware Upgrade SOP via RS232.pdf". 

Made a diff and the files are not the same.

@Coulomb as you are the expert, can you shed some lights with this?

I'm currently on the 72.66 version... so which one from above should I choose? Why the firmware's are different?

 

MAX8K_DSP_7268.7z MAX_HV_8k 72.68.7z

Edited May 15, 20233 yr by djp3k05

Salve, anch'io ho questa microspia da 90V su Voltronic Axpert Max I 8Kw di Solarpower24.

Il mio firmware è:

Versione firmware CPU principale: 46.08

Versione firmware CPU secondaria: 112.15

È stata creata una patch del firmware per me? Grazie.

Edited May 15, 20233 yr by Eruca

On 2023/05/16 at 12:58 AM, djp3k05 said:

I'm currently on the 72.66 version... so which one from above should I choose?

The later one (MAX8K...) is missing 6 commands including QBMS and PBMS, seems to be missing a fix compared to 72.66 in the QPIGS command, is missing the "m" option in the PE command, but it has some additional code in the Sci (serial comms) task. This new code doesn't seem to be "useful" code to me, poking about for "AAAA" tags and the like.

It will take me some time to understand the differences in detail.

So I'd go with the earlier one (MAXHV...)

[ Edit: I have changed my mind! I now believe that the older one (with HV in the name) is a debugging version, and the 6 commands mentioned may not be ready for production. So my suggestion is now to use the later version (MAX8K_DSP_72.68.7z . ]

Quote

Why the firmware's are different?

Good question. Maybe different engineers did the compiles, one hasn't checked in all their changes...  But missing 6 commands is difficult to understand.

Edited August 24, 20232 yr by Coulomb

12 hours ago, Eruca said:

Il mio firmware è:

Versione firmware CPU principale: 46.08

È stata creata una patch del firmware per me?

User BGD has an inverter that came with main firmware version 46.08, and they were able to successfully use the firmwares based on 90.06:

So you should be able to use these, or the shade management ones that are also based on 90.06.

Edited May 16, 20233 yr by Coulomb

1 hour ago, Coulomb said:

The later one (MAX_8K...) is missing 6 commands including QBMS and PBMS, seems to be missing a fix compared to 72.66 in the QPIGS command, is missing the "m" option in the PE command, but it has some additional code in the Sci (serial comms) task. This new code doesn't seem to be "useful" code to me, poking about for "AAAA" tags and the like.

It will take me some time to understand the differences in detail.

So I'd go with the earlier one (MAX_HV...)

Good question. Maybe different engineers did the compiles, one hasn't checked in all their changes...  But missing 6 commands is difficult to understand.

thanks. I will test the earlier version and I will return with feedback. I will compare the graph's to see it there is any improvements. 

23 minutes ago, Coulomb said:

L'utente BGD ha un inverter fornito con la versione firmware principale 46.08 ed è stato in grado di utilizzare correttamente i firmware basati su 90.06:

Quindi dovresti essere in grado di utilizzare questi, o quelli di gestione dell'ombra che si basano anche su 90.06.

Grazie mille. 👍

On 16/5/2023 at 10:07, Coulomb said:

L'utente BGD ha un inverter fornito con la versione firmware principale 46.08 ed è stato in grado di utilizzare correttamente i firmware basati su 90.06:

Quindi dovresti essere in grado di utilizzare questi, o quelli di gestione dell'ombra che si basano anche su 90.06.

Hi, before being able to update the firmware, I was wondering if this operation is reversible to go back to the original 46.08 version.. if so, where could I find the original version? Thank you

16 hours ago, Eruca said:

I was wondering if this operation is reversible to go back to the original 46.08 version.

In this case, no, it's not reversible, because no 46.xx firmware update file has been found. [ Edit: Not true! See next post. ] My patched firmwares always include the original firmware file so the user can easily go back to the unpatched factory firmware. But in this case, it was determined that 90.06 firmware is compatible with 46.08 firmware, and the patch was based on 90.06 firmware. So the best you could do, should you want to go back to factory firmware, would be to go to factory firmware version 90.06. We just don't know what's in 46.08. It might be better or worse than 90.06, or it might be better in some areas of operation and worse in others.

16 hours ago, Eruca said:

If so, where could I find the original version?

If it's publicly available, it usually turns up somewhere on this forum. Otherwise, you have to ask for it from your supplier, and they will only get an update from Voltronic if you have a genuine need. Wanting to have the latest firmware doesn't seem to qualify as a good enough reason, sadly.

Edited May 21, 20233 yr by Coulomb

5 hours ago, Coulomb said:

In this case, no, it's not reversible, because no 46.xx firmware update file has been found.

There is now an original 46.71 on the MPP Solar website:

https://www.mppsolar.com/v3/8048maxmppt/

On 5/21/2023 at 7:00 AM, birdibird said:

There is now an original 46.71 on the MPP Solar website

Thanks for that. It supposedly fixes the stuck at 90 V problem.

[ Edit: That was my interpretation of the "MPPT freeze issue" mentioned in the notes. I now suspect that they fixed something other than the "stuck at 90 V" problem. ]

[ Edit 2: Now I think that it was one of the first firmwares to actually fix the "stuck at 90 V" problem. ]

[ Edit 3 Jan 2025: I now realise that there are several variants of what I have been thinking of as the "presumed good" MPPT logic. The plot thickens. ]

It has the same MPPT control logic as 90.06, except it has the added PV voltage control constant that varies with actual PV current that we've seen in some other recent firmwares.

Edit: The above link no longer works.

This is factory firmware version 46.71 for the Axpert Max E 8 kW '2809 non-Twin. Do not use with any other model. This firmware has the "presumed good" MPPT logic, meaning that it basically solves the "stuck at 90V" issue. Patched firmware may perform slightly better in some circumstances. Use at your own risk. The hex file is dated 2023-Feb-08.

Firmware upload instructions for models with a removable display.

8K MAX - PV voltage stuck at 90v_DSP_4671-20230521T034350Z-001.zip

Edited January 1, 20251 yr by Coulomb
As noted.

I performed the firmware update, I am attaching two images.. thank you very much

Il 2023/02/07 alle 11:09, Coulomb ha detto:

Dang. Non ho un 52.xx da cui lavorare. La mia ipotesi è che sia l'altra versione DSP del firmware 56.xx. 56.xx è per il processore '28066.

Modifica: Se riesci a trovare un file di aggiornamento del firmware per il tuo modello (52.xx), avrei un'idea di patcharlo. Sarei incuriosito nel conoscere il risultato.

hi, I got the original firmware of dala SolarPower24 , I talked to them and they sent me the original firmware , could you modify it with range mppt from 200v to 250v do you remember that I use it with a 3.5kw wind turbine and I use 4 inverters in parallel on 3 inverters I connected photovoltaic panels and to one wind turbine

InfiniSolarVII5K52.29P.rar

5 hours ago, bubu_bubu said:

I got the original firmware of dala SolarPower24

I compared this firmware, version 52.29 dated 23/Jun/2021 with the one I patched earlier, version 52.31 dated 7/Jan/2023, and I find that they are essentially the same with the exception of the largest of the interrupt routines. 52.29's large interrupt routine is actually 247 words (14%) larger than that of 52.31. So if they did something to make it work worse, it seems that they chopped out too much code. Unusual.

My time it tight again at the moment.

Ho 4 inverter in parallelo e tutti hanno 52,29, solo su uno voglio cambiare la gamma mppt da 200v a 250 o 260v, come al solito sarò attento con il caffè, il tempo è prezioso per tutti

so I can't put 52.31 because they are in parallel, the others have 52.29 and they can't see each other anymore, they must all have the same firmware

hello Colombo, can you change the firmware with the panel voltage with a minimum of 200v to 260v ?

23 hours ago, bubu_bubu said:

can you change the firmware with the panel voltage with a minimum of 200v to 260v ?

I probably can, but not for a while.

Is it not possible to run 52.31 on all of them? I think you could run stock 52.31 on most and patched 52.31 one one of them, if that's what you want to do. The firmwares don't have to be identical to parallel them; they just have to have the same core firmware so that they agree about bit patterns in CAN commands and the like. Variations in MPPT voltage (as far as I know) should not affect paralleling ability.