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Deye + Narada BMS comms

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On 2024/01/08 at 10:43 PM, Ahsan said:

Dear @SolarConvert, @Jay-Dee et. al, I were able to communicate my Narada 48NPFC100 with Deye 8KW hybrid inverter. But there is slight problem, After getting the BMS data on inverter screen, the SOC reading drops to 1 % and then revert back to actual value. Firstly I thought, could be because of my cable connections, so I changed the cable but the problem persists. Then I assumed that the inverter might be mis-interpreting the data because my battery was 100 % charge and its the problem of rounding off the decimal point i.e. 100 -> 1.00 so I discharged my battery to any other value but still the SOC BMS readings were going back and forth.

At this point, I assumed, the problem is my battery BMS or my inverter. so I asked another guy to test these combination ( given below) and he had the same exact problem. Can you please guide me which combinations should I try more since you have grabbed the BMS data by logger and analysed it. 

 

inverter pin 1 (white orange)--> battery side pin 6 (solid green)

inverter pin 2 (solid orange)--> battery side pin 7 (white brown)

BMS mode 16

Port: CAN

thanks in advance,

Should port not be RS485 ? Dont think narada supports CAN.

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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

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