Take a look at https://github.com/smaksimowicz/esphome-jbd-bms
JiaBaiDa UP Series BMS (Parallel Packs)
- Thread starter jyauxi
- Start date
Wuerzburger
New Member
Here are the docs I collected regarding JBD SW and Hardware - maybe you can find the info you are looking for ...
I checked with my BMS, but it doesn't work, unfortunately
Debugging looks like this https://monosnap.com/file/Slgrr3uWLeiwBPd7ZImzWUypOfxzUG
I'm using MAX485 UART-RS485 converter and ESP32 (also checked with Wemos d1 esp8266)
This converter works correctly for reading telemetries from the Deye Inverter.
p.s. On PC it works with bms tools application v2.7 only, not with higher version or else bms tools (converter RS485 with CP2102).
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From logs it seams that BMS is not responding for proper command. I'm using UART TTL to RS485 CIA00485T module. I'm powering this module with 3.3V direcly from esp32 board. Plase check also dip swith configuration - you have to set them all to 0 according to logs.I checked with my BMS, but it doesn't work, unfortunately
Debugging looks like this https://monosnap.com/file/Slgrr3uWLeiwBPd7ZImzWUypOfxzUG
I'm using MAX485 UART-RS485 converter and ESP32 (also checked with Wemos d1 esp8266)
This converter works correctly for reading telemetries from the Deye Inverter.
p.s. On PC it works with bms tools application v2.7 only, not with higher version or else bms tools (converter RS485 with CP2102).
monosnap.com
Monosnap screenshot tool for Mac and PC with own cloud storage. Take screenshots, record videos and upload files directly to the cloud. Just in one click.
Also check your esp32 uart connections - they must be conected straight rx(esp)->rx(rs485 module) tx(exp)->tx(rs485 module)
Last edited:
Got it, thanks.
I think that my problem is related to flow control, and I should use
Code:
flow_control_pinAnyway, I ordered the same converter with auto-flow direction control.
--- UPDATE ---
Yeah, it works with a flow control pin. It's weird why the original author decided to skip this option
very thanks for the git link @arH1983
Last edited:
ledz0
New Member
Hello guys!
I have 2 items these BMS and I want connect parallel.
I have issue with parallel connection.
There was connected 2 BMS RS485(Parallel port) - RS485(Parallel port), for slave BMS i put address (1000).
I can't connect to slave BMS via master BMS from PC.
And LCD dispay wrote in menu PackPara->"This content is not settable"
Can you share diagram how to configure parallel connection?
I have 2 items these BMS and I want connect parallel.
I have issue with parallel connection.
There was connected 2 BMS RS485(Parallel port) - RS485(Parallel port), for slave BMS i put address (1000).
I can't connect to slave BMS via master BMS from PC.
And LCD dispay wrote in menu PackPara->"This content is not settable"
Can you share diagram how to configure parallel connection?
ledz0
New Member
Also, I tried to use binary address 0001(1), but it doesn't work.
for parallel connection I use default RJ45-RJ45.
When I connect from PC to master or slave from PC, it works good.
But when I want to connect from PC to slave via master (parallel connection), there is no connection
ledz0
New Member
Right, MJBDTools V2.7-20230306
If your esp code is not supporting JBD UP series it will not work. A couple of commands differs to all the other series. Look at my previous post. Here is a pythonlib you can check for protocoll changes.Got it, thanks.
I think that my problem is related to flow control, and I should useif I'm using MAX485, but I can't see this in the config of this component. I will try to check the source code and maybe I can create a local component with a flow control pin.Code:flow_control_pin
Anyway, I ordered the same converter with auto-flow direction control.
--- UPDATE ---
Yeah, it works with a flow control pin. It's weird why the original author decided to skip this option
very thanks for the git link @arH1983
If you connect a second battery in parallel, whose voltage differs from the first one, the current flow between them will be limited to 20A
BenTheSprinter906
New Member
- Joined
- Jul 15, 2021
- Messages
- 2
Hi Hermann, can you elaborate a bit how you connected (hardware) the BMS with the RasPi? I assume you are running Venus on the RasPi. I am really struggling to connect the JBD UP16S010 (200Amps version) with the RasPi Venus. With the BMS I also go the USB>UART cable. I can connect with this cable using the JBD Tools on my PC. Then I tried using this cable to connect the RasPi with the BMS (on RS485 port of the JBD) but the BMS doesn’t show up on the Device List in Venus. Also tried the CAN port right next to the RS485 but also there, no success. Maybe the USB>UART cable supplied by JBD is only good for the PC connecting via JBD tools?
Thanks in advance, Norman
NM just got official word from jbd, this bms does work with srne
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