I want to connect with Rasbery Pi to this inverter i have https://www.aliexpress.com/item/1005002328132162.html

 

It works  with provided  WiFi Dongle and SmartESS application but Solar Assistant does see incorrectly the devices when connecting both usb and rs242 cables together or independently.

when plugging in the inverter via USB it's showing up as a "Exar Corp. XR21V1410" serial device which is different from normal.  This USB device is also not accepting connections.

 

I want to find what other known inverter models are identical to this one and that have known protocols. Maybe it is GEN II from the name ?

A video with exact SMG II components can be downloaded with high resolution from here (not preview)  : https://drive.google.com/file/d/1vTVmUU79kyTTm4LnIqdnN-FFFqlcMHiT/view?usp=sharing

 

The EASuns are clones. So who knows what protocol they support, what quality of parts are in them, etc.

Edit November 2022: It seems that EASuns are no longer clones.

Edited November 16, 20222 yr by Coulomb

4 minutes ago, Coulomb said:

The EASuns are clones. So who knows what protocol they support, what quality of parts are in them, etc.

 

can you open the video and see all components maybe we find who produces the inverter and the protocol used because it is a modbus device.

Edited January 26, 20223 yr by IsolarSMGII

I think what @Coulombis trying to say is, you have a clone/copy/fake of the real thing.  If it doesn't work with the software they provide or software of the company they ripped off, you are probably out of luck.  Not many people are going to want to create software for a clone.  Partly because it is disgusting that they rip-off another company but mostly because the clones have bad build quality.  So most people with clones end up needing to replace them soon anyway.  You aren't paying much less and you are getting a worse product.  So not worth buying the fake.

You probably didn't know you bought a fake, so it may be worth seeing if you can get a refund and buy the real thing.

Edited January 26, 20223 yr by Gnome

1 hour ago, Gnome said:

I think what @Coulombis trying to say is, you have a clone/copy/fake of the real thing.  If it doesn't work with the software they provide or software of the company they ripped off, you are probably out of luck.  Not many people are going to want to create software for a clone.  Partly because it is disgusting that they rip-off another company but mostly because the clones have bad build quality.  So most people with clones end up needing to replace them soon anyway.  You aren't paying much less and you are getting a worse product.  So not worth buying the fake.

You probably didn't know you bought a fake, so it may be worth seeing if you can get a refund and buy the real thing.

Easun inverters are manufactured and assembled in Voltronic factory.

Wat makes you tell that if the same factory rpoduces the same inverters labeled as MPP, Easun, Apex and many others that put just  alabel on them, makes one the original and the others a copy ?

Just asking for a clear understanding on your lack on information that make you think that if you pay $1000 for one inverter and $600 for another one produced in exactly the same factory make you tell others that if you pay more mone for the more expensive label you get better quality ?!

 

Do you understand how OEM factories from China work, they offer OEM products.

 

Cheers everyone

 

 

On 2022/01/27 at 3:11 AM, IsolarSMGII said:

Easun inverters are manufactured and assembled in Voltronic factory.

Not according to the link I provided. Many of the EASuns look significantly different from the Voltronic originals. I'll admit that not all look different, and for a while I believed that they were genuine too.

It's possible, though unlikely, that some EASuns are clones and others are genuine. I suspect that of Synapse labelled inverters, for example. I wish that Voltronic would provide a way that customers could easily tell. Just a list of genuine brands would do me, though keeping that list up to date would be a hassle.

On 2022/01/28 at 10:14 AM, Coulomb said:

Not according to the link I provided. Many of the EASuns look significantly different from the Voltronic originals. I'll admit that not all look different, and for a while I believed that they were genuine too.

It's possible, though unlikely, that some EASuns are clones and others are genuine. I suspect that of Synapse labelled inverters, for example. I wish that Voltronic would provide a way that customers could easily tell. Just a list of genuine brands would do me, though keeping that list up to date would be a hassle.

I opened 2 of them from MPP and Easun and they have identical components and identical Voltronic numbers, so I want you to post pictures for identical models and prove components are different and that it is being used another factory.

Your article does not provide pictures from components and just make assumptions without knowing that Voltronic is producing batches as OEM products with the label each order wants (Apex, MPP, Easun, PowLand, Axpert, SMKSolar, Mecer, RCT, Kodak and another 20 more OEM labels, all produced by teh same factory with OEM license and they apply your label, with your brand.

 

So we have at least 30 brands and also 27 different models with different characteristics, but all are int he same factory produced, not clones as you claim without in depth components analysis. Also last year because of semiconductors variations you will see the components being changed more often becase they could not find supply for big numbers of what they have been using.

 

 

Otherwise it is just another way for an expensive label for a product produced in exactly the same big factory, Voltronic !

 

Edited January 30, 20223 yr by IsolarSMGII

19 minutes ago, IsolarSMGII said:

I opened 2 of them from MPP and Easun and they have identical components and identical Voltronic numbers, so I want you to post pictures for identical models and prove components are different and that it is being used another factory.

Your article does not provide pictures...

Well, that's certainly more than I have done, so thanks for the update.

I might point out that it's not my article, I just linked to one that I had pretty good reason to believe. It would also be nice to see some of your photos.

21 minutes ago, IsolarSMGII said:

Voltronic is producing batches as OEM products with the label each order wants (Apex, MPP, Easun, PowLand, Axpert, SMKSolar, Mecer, RCT, Kodak and another 20 more OEM labels, all produced by teh same factory

I'm quite aware of Voltronic's Original Design Manufacturer philosophy. I'm still fairly certain that at least some of Powland's offerings are in fact clones, even if some are genuine.

1 hour ago, IsolarSMGII said:

I opened 2 of them from MPP and Easun

Did they look the same on the outside, ignoring reseller's logos etc? Here is a comparison of a photo of yours, versus the latest Axpert MKS II manual I could find [ edit: from 2018 unfortunately ] (the equivalent PIP-5048MG seems to be considered obsolete on the MppSolar site; they often have more up-to-date manuals than Voltronic themselves). Not conclusive, I'll be the first to admit:

As you can see, the comms board and main switch are in different positions, the switch markedly so. Maybe Voltronic revised the layout and didn't update the manuals; that would not be the first time. But I don't think that they bothered to revise this now fairly old model. All the 5+ kW models have the removable display now, and there is a new series beyond that with the round look.

That's the sort of thing that suggests to me that your Easun is not a genuine Voltronic. But one photo of an MPPSolar PIP-5048MG (their name for an Axpert MKS II) with the revised layout would put all my doubts to rest.

Edited January 30, 20223 yr by Coulomb

Hello guys,

 

i have same inverters. It's any news with finding communication protocol?

 

Thank

Also I´m looking for some compatible software.

I belive the protocol is described in the attached pdf.
If someone find out something let me know please.

 

Thanks

Protocolo_SMG II 5KPRS232 V1.0.pdf

14 hours ago, Henrique said:

I believe the protocol is described in the attached pdf.

Wow. That's very different to Axperts.

Strange that they don't specify the bit rate, parity, etc.

53 minutes ago, Coulomb said:

Wow. That's very different to Axperts.

Strange that they don't specify the bit rate, parity, etc.

Maybe it is a standard configuration...
I confess I do not know how it works but will try to find those values on web.

Interesting, that looks very similar to my Fivestar 5kW inverter. The screen and buttons are identical, and the wording "Hybrid solar inverter". Mine also came with a wifi dongle and a QR code linking to the SmartESS app. I registered on the app and added my inverter as a device, but it is not showing in the device list. If anyone has any tips for using the app, I'd appreciate them.  

21 hours ago, Beckett said:

Interesting, that looks very similar to my Fivestar 5kW inverter. The screen and buttons are identical, and the wording "Hybrid solar inverter". Mine also came with a wifi dongle and a QR code linking to the SmartESS app. I registered on the app and added my inverter as a device, but it is not showing in the device list. If anyone has any tips for using the app, I'd appreciate them.  

First you need to configure wifi dongle to your home network typing SSIS and access pw, then create a new account on Smartess with the dongle SN (you can use QR code), after that login and your device should be visible. It looks easy but it´s not, I also tryed a few time before succeed, more, I have been trying to register in SmartClient app with no success up to this date.

 

Edit: Very diferent from Fivestar I guess...

 

 

 

 

Edited July 20, 20222 yr by Henrique
Smaller images

It was Confirmed by software developer that ONLY SmartEss can be used, SmartClient do NOT work.

On 2022/01/26 at 11:52 AM, Coulomb said:

The EASuns are clones. So who knows what protocol they support, what quality of parts are in them, etc.

Modbus they say

 

 

SMG II 5KPRS232 V1.0.pdf

Hello all,

 

In case is not too late and you didn't abandon the project I can confirm that the above protocol is the one used.

After many nights spent to reverse-engineering I was able to attach it to my Home Assistant and indeed it does use modbus protocol.

I wish I knew the protocol before starting to sniff the data send between the dongle and the invertor. Like that I didn't had to spend that many nights to discover what they "talk". Anyway I'm happy I was able to add it to my HA instance and now I can control it like it is with his own dongle. I was using a MAX3232 and an ESP8266 flashed with Tasmota (custom version to support ModBus). 

Also during the time I was sniffing the communication I also discovered that even the WiFi Dongle use the same ESP8266 chip. Now their dongle is flashed with that custom Tasmota firmware and I read the data via modbus-rtu with Home assistant.

With tasmota firmware you have two options:

      - one is just to read and show directly the needed values but this is just read only (at least this is what I was able to do).

     - the other one is to make it work with same tasmota via modbus-rtu over the network and the values you read directly with Home Assistant and this allowed me also  to change the modbus registers and this way can be controlled like with the original software/dongle.

Also after many days spent then I also find who made this model of inverter (from them I did get same file for protocol like the above). My finding (at least at that time) was that it is produced by JSD-Solar model Glory M5000 HHP-48. Now I don't see anymore on their website but if you search for the model name you can find it.

Mine is also from Easun but they didn't want to help me with the protocol.

Also on Easun it looks like that the model that have SMG in the name are the one with modbus protocol comunication. I did look in the manual of the new version (5.6KW) and I see is the same like mine and at the menu 25 is the parameter for the modbus Node ID the same like the older version at 5Kw.

 

B.R.

 

 

Hi, good job ! Can you tell us more about the flashing of this original wifi module? I'm intrigued ^^ I took it out of the drawer right away ^^ I myself have an easun smxII 5.6kw inverter but the modbus protocol is not the same as the document above. I am in the process of decoding the reception and sending frames to integrate it into my red node. I will soon see the end of the tunnel!

Hello,

Also I'm looking for easun SMX II 5.6 kW protocol.

Edit: I found that SMX II 5.6 is compatible with SRNE inverters protocol.

I tried https://github.com/shakthisachintha/SRNE-Hybrid-Inverter-Monitor

and it works. I tested with a raspberry pi connected to USB port.

I'm going to use Modbus protocol on EspHome on a ESP32(m5stack atom rs485) and add all needed registers and integrate into Home Assistant 

Regards

 

Edited November 20, 20222 yr by pongo
Found protocol

Hello,

thank you very much, I have just compared with the data that I had already found, it is indeed the correct protocol.
I searched for two weeks without finding, congratulations to you !

On 2022/11/17 at 1:18 AM, gazzzzton said:

Hi, good job ! Can you tell us more about the flashing of this original wifi module? I'm intrigued ^^ I took it out of the drawer right away ^^ I myself have an easun smxII 5.6kw inverter but the modbus protocol is not the same as the document above. I am in the process of decoding the reception and sending frames to integrate it into my red node. I will soon see the end of the tunnel!

In the picture you can see the inside of my WiFi module.

You can open it up and see if is same like mine because I see are different types, don't know how they are inside.

The chip used in mine is esp07, so you can find on internet the pinouts and front there you can make it further like on any esp model..... you even have exposed the pins for Rx and Tx, with a flasher for an esp01 or other adapter for USB to TTL you can flash it easy.

In the first photo you can see the software used to find the registers, that I was using to see the registers until I got the protocol used.

On 2022/11/19 at 1:13 AM, pongo said:

......

I'm going to use Modbus protocol on EspHome on a ESP32(m5stack atom rs485) and add all needed registers and integrate into Home Assistant 

Regards

 

If you plan to use esphome then definitely you can try to flash the dongle if you have one, but is a lot of work to do it in esphome. You can back up the content in case you want to but I think after you get it work you will not want to go back.

In my case like I din used tasmota and the dongle became a true gate to have modbus over the Ethernet (modbus-rtu) and everything happens in HA where I created all the sensors accordingly. 

As bonus I even used the build in LED  for statuses.

 

 

LE:

 

I forgot to tell you that my dongle have implemented inside something that it make it restart after a 1 minute. Probably is waiting for an output from the esp but I didn't know witch one so I bypass the power supply with a wire 🙂

Edited November 20, 20222 yr by burleanu

I already have an atom rs485. In my opinion implementing ModBus on ESPHOME is not so hard

Edited November 21, 20222 yr by pongo