Hello, I have a TOMMATECH 11 kw solar inverter. It is currently with U1 57.01 firmware. Is there a newer software and what version is it? Thanks in advance.

This unlabelled firmware is actually 57.61 for Axpert Max 1 with '2809 DSP. It's in the 8 kW firmware thread, but it's definitely 11 kW firmware.

[ Edit: dsp.hex is dated 13/Jan/2023 ]

 

Edited February 23, 20233 yr by Coulomb

I have 57.05 factory firmware , as attached.

I don't know the changes, use at your own risk.

But believe the one above from @Coulomb  may be more recent

MAX_1_11kW_DSP_57.05_2809_old_processor.zip

2 hours ago, stakoz said:

I have 57.05 factory firmware...

But believe the one above from @Coulomb  may be more recent

Actually, dsp.hex in 57.05 is dated 17/Feb/2023, although all the files in the archive have that date. So I think it's been re-packaged to be "Mac friendly" somehow. The Mac folder is pretty weird, though, with nearly all files being 313 bytes in size. So I don't think that the Mac conversion was done properly.

So as to which is the latest, it will have to wait till I have time to compare them. And comparing binaries is a very slow process. Even then, how do you decide which is later? This one has 100 bytes more than that one... did they add functionality to one or delete unneeded code from the other? 95% of the time, changes make the code bigger, but it's knowing when you're in the 5% of cases that's the trick.

Hi @Coulomb,  this was received from Tommatech last week (actually from their reps. in Turkey which are https://www.cw-enerji.com/).

Yes I had it saved on my Mac from an email, unzipped it and then added to the zip the SOP provided by them on how to flash it, and zipped it again. So my Mac system could have added to the filing. As they provided a download link and the zipped file was around 18 MBs as it contained also other firmware, I am attaching herewith a link to that original zip file in my dropbox, in case you would like to investigate the individual files properties , time stamps etc: https://www.dropbox.com/t/way2yTuTytM40BZA

I judged that the one you had above is newer just by the version numbering.

FYI in that zip file I got also the latest firmware for Max1 7.2kw both old and new processors and I added the latter yesterday to the Download section. 

I don't know about any changes, these were just provided as being latest with cwi-enerji 

 

Edited February 23, 20233 yr by stakoz

7 hours ago, stakoz said:

I am attaching herewith a link to that original zip file in my dropbox, in case you would like to investigate the individual files properties , time stamps etc: https://www.dropbox.com/t/way2yTuTytM40BZA

Thanks.  But the time stamps are all the same there anyway.

However, there are 2 new firmwares that I have not seen. Even if they're not the latest, it's sometimes good to be able to compare.

 

Thank you @Coulomb glad to have been of help. 

I know this thread is not on this but any chance you could please patch the Max1 7.2kW with the new processor for the float and mppt voltage freeze? 

Your work and support is greatly appreciated and I will repeat my previous donation and sure there will be others who will benefit from this.

Many thanks in advance for your kind consideration.

Does somebody has newer Firmware for Voltronic Axpert MAX 11kW then 91.70?
Thank You in advnace!...

5 hours ago, aamilev said:

Does somebody have newer Firmware for Voltronic Axpert MAX 11kW then 91.70?

I've not seen any. The flurry of Axpert Max firmware updates seems to have slowed down of late.

Hi all, I just now came across this for the 11kw Max 1 (from MPP Solar) FW upgrades v 73.63 and 57.61 (from mid April) for both new and old chips versions, claims to "to address MPPT freeze issue found on some units due to the chip performance variation."

https://www.mppsolar.com/v3/11kmax-fw-update/ 

I have not tried it. 

@Coulomb could you please if possible and time permitting identify any changes in the FW and do you think it is worth upgrading further your patched FW for this model, namely (2)91.70?

I see some EEPROM errors displayed on some monitoring software (e.g. MultiSIBControl 1.7) with (2)91.70 but otherwise inverter seems to work ok.

Thank you in advance

Kind regards 

17 hours ago, stakoz said:

could you please if possible and time permitting identify any changes in the FW and do you think it is worth upgrading further your patched FW for this model, namely (2)91.70?

There are scattered changes. it was a bit of a pain to compare them. 73.63 does seem to be an evolution from 91.70.

The major change seems to be with the MPPT control code. 73.63 has some logic I don't recall seeing before, so it's possible that they've finally nailed the stuck at 90V issue. Though it seems to be to be a mishmash of ideas that they have already tried, so I'm not super confident.

As for whether it's worth patching, I think it's worth trying as is first. If it still doesn't solve the stuck at 90 V problem, I can reduce the current threshold as I have for earlier patches.

17 hours ago, stakoz said:

I see some EEPROM errors displayed on some monitoring software (e.g. MultiSIBControl 1.7) with (2)91.70 but otherwise inverter seems to work ok.

Huh. One of the changes is to avoid emitting a warning for EEPROM errors in 91.70, in the case of another warning to do with the I²C hardware. That avoidance code is missing in 73.63. But there are also initialisations of the I²C hardware missing; perhaps 73.63 uses software emulation of I²C (something that they seem to have to do with the GigaDevice display chips), and maybe this actually works more reliably than the hardware in the DSP. Hard to imagine, but possible I suppose. At least, there IS a difference with respect to EEPROM warnings, so that alone may make it worth using 73.63, patched or not.

Thank you @Coulomb in case i upgrade to the new 73.63 "as is" above but it does not work for the mppt sticking at 90v in gloomy days and/or the battery premature float bugs - would it be possible to downgrade then back to the patched (2)91.70, or should you then need to patch again the new 73.63 to be re-applied in the inverter?

Many thanks again .

4 hours ago, stakoz said:

would it be possible to downgrade then back to the patched (2)91.70,

Yes, there is no problem going backwards in firmware version. Of course, you then lose any improvements that the new firmware brought.

For 11kv (ISOLAR if it matters) can you tell me where to download U1 firmware 67.07 or a newer version. The inverter is from the newer version, which has two outputs (I attach a photo)

2 hours ago, GES said:

can you tell me where to download U1 firmware 67.07 or a newer version.

Sorry, no. There are so many variants; for 11 kW twin I have seen 75.00, 78.04, and now 67.07. Is yours a II (with the round display) or an E (with the removable display)?

Edit: But I don't have any of these 11 kW twin firmwares; just seen mention of them.

Edited May 24, 20233 yr by Coulomb

On 2023/05/21 at 12:34 AM, stakoz said:

I see some EEPROM errors displayed on some monitoring software (e.g. MultiSIBControl 1.7) with (2)91.70 but otherwise inverter seems to work ok.

One more issue which I found with verion 91.70 is that from MultiSIBControl 1.7 cannot be Save Parameter "Max. Utility Charging Curent (A)".
"Max. Utility Charging Curent (A)" can be set Locally or from WatchPower only.
Also, I observe a jump at about 150W which is equal or about 97V.

Edited May 25, 20233 yr by aamilev

 

.deleted

Edited July 21, 20232 yr by Solar RO

Hello everyone, hello Coulomb.

I have two Tommatech 11kw inverters. One is with 28066 and 73.02, the other is with 2809 and 57.61. They are bound to work in parallel and for that I want them to have the same firmware. Is it possible?

On 2024/09/23 at 5:13 AM, Vector_ said:

One is with 28066 and 73.02, the other is with 2809 and 57.61. They are bound to work in parallel and for that I want them to have the same firmware. Is it possible?

It's not possible to have the same exact numeric firmware version, no. But the 73.xx (for Max E 11 kW non-twin) and the 57.xx are probably compiled from the same source code, just compiled with different flags, so that the '28066 version calls the calibrate function in special read-only memory. For reasons I don't understand, possibly just habit, they always compile the '28066 firmwares with optimisation turned on, and the '2809s with optimisation turned off. So the code looks different (the hex files have different sizes; the'28066 is some 17% smaller), but it's basically the same functionality. Fault code 71 (firmwares not compatible) won't turn up, because they both use paralleling constant 118, the same as ancient 5 kVA firmwares! Voltronic thus don't help you prevent subtle errors, so you have to make sure that the firmwares are from about the same time, and preferably with the same minor version number (the xx of 57.xx).

Usually you would just update to the latest firmwares of both, but in this case it's Jan 2024 for 73.68, and early Sep 2023 for 57.07. So I suggest 57.07 (which happens to be the latest I know of for that series) and 73.07 (late July 2023). The fact that the minor version numbers (07) agree is also encouraging.

These were both shared by a kind user in this post: https://forums.aeva.asn.au/viewtopic.php?p=101220#p101220

The fact that they were supplied together is further indication of their compatibility.

Edited October 4, 20241 yr by Coulomb