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Deye + Narada BMS comms

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Sorry, if this confuses things more or not... I have lost track on what is or is not working in this thread.

I have just finished setting up my SunSynk 5k Hybrid and manage to get it to talk to my Narada 48npfc100 but with different pin configs to above. Perhaps it is a Sunsynk vs Deye thing or it could be the cause of my 1 remaining issue. My Inverter is seeing only one of my two batteries

image.thumb.jpeg.d41ce1d67e76013fb46ae12302f96371.jpeg

 

From my side the wiring is as follows

Inverter side is Pin 1 & 2 which goes to Pin 6 & 7 on the battery side respectively... This is the only combination I can get that works. Pin 7 & 8 also work perfectly when using an RS485 to USB adapter when connecting to ICC / ICM or Solar assist.

My batteries dip switch are 000000 (Master / Pack 1) and 100000 (Slave / Pack 2). I know the batteries are talking to each other as when I look at them in ICM, I can see full details for both batteries. I have tried plugging the inverted into any and all of the RS485 ports on the two batteries and it still only reads which ever battery it is plugged into.

My Inverter is running COMM:e420 - MCU:3370... I know there is newer firmware but not sure if this is this issue. Either way, I am going to request an upgrade tomorrow.


Anyone else have it running on a Sunsynk? With multiple batteries? Can you see all the batteries?

Thanks in advance

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  • Here is the software for Narada equipped with a Shinwa LM-M01A BMS. You will need : - battery dip switch set to ID 0 (all down) or first battery ID 0, second battery ID 1, etc if you have mu

  • Sorry, doesn't work. RS485 works with the 2/3 battery side - 7/8 inverter side cable. Doesn't work with battery set to ID 0 though, need to set to ID 1.  

  • @WannabeSolarSparky & @SolarConvert So some great news 🥳.   I got a bee in my bonnet and re-ordered the hardware RS232 splitter (https://www.takealot.com/mt-viki-1-to-4-serial-port-splitter/P

Posted Images

Weird cable pins config as the Narada manual says pins 6 & 7 are not used for RS485, but if that works ...

You may try to change your dip switches to 100000 (master, connected to the inverter) & 010000 (slave). 

 

3 hours ago, zivva said:

Weird cable pins config as the Narada manual says pins 6 & 7 are not used for RS485, but if that works ...

You may try to change your dip switches to 100000 (master, connected to the inverter) & 010000 (slave). 

 

I know, but the image in the manual is as odd as the findings

Will give it a try tomorrow and let you know

17 hours ago, Jay-Dee said:

Sorry, if this confuses things more or not... I have lost track on what is or is not working in this thread.

I have just finished setting up my SunSynk 5k Hybrid and manage to get it to talk to my Narada 48npfc100 but with different pin configs to above. Perhaps it is a Sunsynk vs Deye thing or it could be the cause of my 1 remaining issue. My Inverter is seeing only one of my two batteries

image.thumb.jpeg.d41ce1d67e76013fb46ae12302f96371.jpeg

 

From my side the wiring is as follows

Inverter side is Pin 1 & 2 which goes to Pin 6 & 7 on the battery side respectively... This is the only combination I can get that works. Pin 7 & 8 also work perfectly when using an RS485 to USB adapter when connecting to ICC / ICM or Solar assist.

My batteries dip switch are 000000 (Master / Pack 1) and 100000 (Slave / Pack 2). I know the batteries are talking to each other as when I look at them in ICM, I can see full details for both batteries. I have tried plugging the inverted into any and all of the RS485 ports on the two batteries and it still only reads which ever battery it is plugged into.

My Inverter is running COMM:e420 - MCU:3370... I know there is newer firmware but not sure if this is this issue. Either way, I am going to request an upgrade tomorrow.


Anyone else have it running on a Sunsynk? With multiple batteries? Can you see all the batteries?

Thanks in advance

This is very interesting, and clearly it is working. RS485 is a version of RS232, serial communication that can handle longer distances. It only has Tx and RX lines. My logic then says to me that the standard network cables with pin through communication will then not work, connecting 2 receiving pins to each other. Logic tells me a "twisted pair" cable would be needed, like in the old days when we connected printers on serial ports. Would be interesting to try cables with 6 to 7 and 7 to 6 to 7 in order to connect Tx to Rx.

This is very interesting, and clearly it is working. RS485 is a version of RS232, serial communication that can handle longer distances. It only has Tx and RX lines. My logic then says to me that the standard network cables with pin through communication will then not work, connecting 2 receiving pins to each other. Logic tells me a "twisted pair" cable would be needed, like in the old days when we connected printers on serial ports. Would be interesting to try cables with 6 to 7 and 7 to 6 to 7 in order to connect Tx to Rx. ..... this would be for comms amongst the batteries....

20 hours ago, zivva said:

Weird cable pins config as the Narada manual says pins 6 & 7 are not used for RS485, but if that works ...

You may try to change your dip switches to 100000 (master, connected to the inverter) & 010000 (slave). 

 

Sooo... You are brilliant!!!! I was following the dip switch settings as per my manual but yours work and now I can see both batteries without an issue. Going to be very interesting to see if they balance themselves better with this setup (not that I had much of an issue before)

image.thumb.jpeg.12b4e62cad8a61e1535e6b94ec10438f.jpeg

 

7 hours ago, zivva said:

Ok, weird 🤔 100% sure of your cable ?

You can use the left or right RS485 port on the batteries, doesn't matter. I tried both ;)

100% sure... I made enough of them and tested enough times with my RS485 to USB to read the batteries first.

image.thumb.jpeg.964d74bde20b3cdfc75557590d414e72.jpeg
 Inverter Side

image.thumb.jpeg.2094e1c2f46e008169c0f3b5a1f63bd5.jpeg

Battery Side


To say that I am overly chuffed with myself is an understatement.... I was soo worried, I was going to have to continue to rely on a 3rd party software to link the Inverter and Batteries again was annoying me but happy days!!! Hopefully this can help others going forward too!!!

4 hours ago, CCSA10 said:

This is very interesting, and clearly it is working. RS485 is a version of RS232, serial communication that can handle longer distances. It only has Tx and RX lines. My logic then says to me that the standard network cables with pin through communication will then not work, connecting 2 receiving pins to each other. Logic tells me a "twisted pair" cable would be needed, like in the old days when we connected printers on serial ports. Would be interesting to try cables with 6 to 7 and 7 to 6 to 7 in order to connect Tx to Rx.

No need to try this but thanks for the suggestion... As you will see from my above reply, it was a dip switch setting... Once again manuals are not to be followed. 🤣

2 hours ago, LionKing said:

How is the performance of Narada batteries compared to Pylontech? I like that these support 1C discharge current, but think most people don't buy these?

I have a Pylontech (3000C) at my parents house which we purchased before my first Narada. I went with the Narada primarily as at the time, it was the same price as the Pylontech but gave 4.8kw vs 3.5kw. All the reviews at the time were positive and my personal experience over the last year and a bit has been excellent. The only advantage to me of the Pylontechs are that they are more supported off the shelf than Naradas are.

If I was purchasing again, I would go with them in half a heart beat as I still feel they are very good value for money and even more so now that their is the 7.2kw version for not much more

On 2022/06/11 at 5:47 PM, zivva said:

_IMG_000000_000000.jpg

Thanks! What kind of warranty is being offered on Narada in your country? I'm in Pakistan, and the ones we're getting have noticeably different front-end, makes me wonder if we're getting some cheap chinese box with Narada printed on it.

Narada Battery Lithium ion battrey 2022 with three year warranty 0

14 minutes ago, LionKing said:

Thanks! What kind of warranty is being offered on Narada in your country? I'm in Pakistan, and the ones we're getting have noticeably different front-end, makes me wonder if we're getting some cheap chinese box with Narada printed on it.

Narada Battery Lithium ion battrey 2022 with three year warranty 0

3 year warranty in South Africa / from the supplier I purchased mine from

6 hours ago, LionKing said:

Thanks! What kind of warranty is being offered on Narada in your country? I'm in Pakistan, and the ones we're getting have noticeably different front-end, makes me wonder if we're getting some cheap chinese box with Narada printed on it.

Narada Battery Lithium ion battrey 2022 with three year warranty 0

I'm afraid they are all made in China : Narada is a Chinese company, as ALL batteries manufacturers :)

Mine have been manufactured in 2020, yours is probably the newest model.

I have zero warranty on those, that's second hand sold by telecom operators. Bought for very cheap (80ah @ 300usd ...) here in Indonesia. Still the BMS software says they are like new : less than 10 cycles 🤟

5 hours ago, zivva said:

I have zero warranty on those, that's second hand sold by telecom operators. Bought for very cheap (80ah @ 300usd ...) here in Indonesia. Still the BMS software says they are like new : less than 10 cycles 🤟

 

That's my concern with these. Officially they claim 3000 cycles but official warranty is only 3 years in Pakistan as well. Makes you wonder if they'll even last 4-5 years? and if its worth going with pylontech - which comes with 7 year warranty.

On 2022/06/13 at 7:10 PM, Jay-Dee said:

Going to be very interesting to see if they balance themselves better with this setup (not that I had much of an issue before)

 

Got a small unbalance issue myself, 1st battery lagging a bit behind the second battery when charging & discharging ... 2 to 3% behind. Not so much of an issue untill batteries are set to reach full charge when the second battery then reaches 100% before the 1st and its BMS display an error (overcharging I guess ...).

Got the same issue ?

All wires are same length, looks like I will need to connect both batteries to a bus bar rather than the simplest parallel connection ...

2 minutes ago, zivva said:

Got a small unbalance issue myself, 1st battery lagging a bit behind the second battery when charging & discharging ... 2 to 3% behind. Not so much of an issue untill batteries are set to reach full charge when the second battery then reaches 100% before the 1st and its BMS display an error (overcharging I guess ...).

Got the same issue ?

All wires are same length, looks like I will need to connect both batteries to a bus bar rather than the simplest parallel connection ...

Mine are now balanced... Took about a full day to even out but is is much better.

My cables are all equal length and have always been, so that was never an issue for me

On 2022/06/22 at 12:05 AM, Jay-Dee said:

Mine are now balanced... Took about a full day to even out but is is much better.

My cables are all equal length and have always been, so that was never an issue for me

Ok same, racks now balanced. Just took a few more days ...

  • Author

I've been in contact with Deye and have received new information. The connection to Narada uses the CAN port now apparently with the latest firmware on the inverter, please see attached.

I have been unable to get the info on which Narada pins should be connected to the inverter CAN H/L pins despite asking several times.

image.thumb.png.f63644b37412eeaf056711cf10414a98.png

 

最新-Deye Approved Battery list(DY-LV48-0002)(1)..pdf

Might be just a typo :

- the former list of approved batteries, published the same day with the same revision number, says RS485 / protocol 16 for Narada ;

- Narada mentions only RS485 protocol in their various documents

Btw & for info, here is the fw version of my Deye 5k

- flash HMI : 0000-c356

- main : 0-3371-1515

It just works ...

Edited by zivva

  • Author

Yeah I thought it might be a typo but deep down I hoped it would work because lithium mode 16 on the inverter causes me to lose the ability to monitor the inverter via RS485.

I still haven’t gotten my Narada 48NPFC100 to work with the inverter RS485 port and lithium mode 16. I downloaded the Shinwa software you attached earlier and was able to read the BMS time but nothing else, so I think I have a BMS from a different manufacturer, but not sure how to find out without opening the battery and losing the warranty.

Edited by SolarConvert

2 hours ago, SolarConvert said:

Yeah I thought it might be a typo but deep down I hoped it would work because lithium mode 16 on the inverter causes me to lose the ability to monitor the inverter via RS485.

I still haven’t gotten my Narada 48NPFC100 to work with the inverter RS485 port and lithium mode 16. I downloaded the Shinwa software you attached earlier and was able to read the BMS time but nothing else, so I think I have a BMS from a different manufacturer, but not sure how to find out without opening the battery and closing the warranty.

Can you show picture of your battery's communication ports?

3 hours ago, SolarConvert said:

Yeah I thought it might be a typo but deep down I hoped it would work because lithium mode 16 on the inverter causes me to lose the ability to monitor the inverter via RS485.

I still haven’t gotten my Narada 48NPFC100 to work with the inverter RS485 port and lithium mode 16. I downloaded the Shinwa software you attached earlier and was able to read the BMS time but nothing else, so I think I have a BMS from a different manufacturer, but not sure how to find out without opening the battery and losing the warranty.

At least I am not the only one here... I tried to run both Solar Assist and ICM via the RS485 and BMS485 ports on my Sunsynk 5K but no config worked... Does mode 16 cause issues on the BMS485 port?

  • Author
1 hour ago, Jay-Dee said:

At least I am not the only one here... I tried to run both Solar Assist and ICM via the RS485 and BMS485 ports on my Sunsynk 5K but no config worked... Does mode 16 cause issues on the BMS485 port?

So both Solar Assistant and ICM should work with the BMS485 port for monitoring the inverter. The RS485 port (bottom right) doesn't work for that purpose or at least the pins are not known. I have a raspberry PI connected to the BMS485 port of my inverter and it works well. However, if I change the lithium mode from 0 to 16, then the BMS485 port changes its behaviour and does not return valid modbus responses when queried. So the predicament here is if eventually I do get BMS comms working from the inverter to the Narada battery, I will lose the BMS485 port to BMS comms, which will mean I need to use the RS232 port for monitoring (which works too) and then I lose the data logger. Or what got me excited from the previous response from Deye was that potentially BMS comms to the Narada battery can be achieved via the BMS CAN port of the inverter, but that is likely a typo as previously mentioned.

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