Interfacing (several) DALY BMS via RS485

[KaFun]

I built some 16S LiFePo4 200Ah batteries with a DALY 100A Smart BMS and want to interface them on the SAME RS485 bus. I managed to "contact" the BMS using a RasPi with a Waveshare RS485 HAT using Python.
However, in order to contact more than one BMS on the bus, I need to set the board number to different values. I can change the board number using the PC software via UART or RS485 (which is basically the same protocol just different physical layer). But it seems the BMS forgets its given board number after a few polls.
Does anyone has anything done in this direction but with slightly more success?

 

[KaFun]

Solved it with a little help from the DALY BMS store: I received a new Monitor Software (v1.2.5), had to flash the BMS with a new firmware and then assign each of them an individual board number. Now it works like a charm: Three BMS on the same monitoring software!

 

[Zwy]

Solved it with a little help from the DALY BMS store: I received a new Monitor Software (v1.2.5), had to flash the BMS with a new firmware and then assign each of them an individual board number. Now it works like a charm: Three BMS on the same monitoring software!

Can you upload the file in Resources? Which Smart BMS do you have?

 

[KaFun]

I have three 16S LiFePo4 DALY Smart BMS, one of them 80A and two 100A, none of them with fan.

 

[wgr]

KaFun, could you pls upload the new Daly Monitor Software and firmware to share it with us? Have exactly the same issues...

 

[KaFun]

It's there under resources ...

DALY BMS firmware to assign board numbers (DalyBmsApp_20210216B.s19)

DISCLAIMER: KNOW WHAT YOU DO! PLAYING WITH FIRMWARE CAN RENDER YOUR BMS USELESS. MAKE SURE; YOU DO NOT LOSE YOUR CONNECTION OR POWER DURING UPGRADE! I wanted to control three 16S LiFePo4 BMS with one Monitor Software (well actually via a...

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DALY BMS Monitor to monitor 8 boards

Using this version of DalyBMSMonitor, I was able to monitor three BMS on the same RS485 bus. To change the board number, connect each BMS SEPARATELY first, go the tab "Engineering model" and find on the right side "Read" next to "BoardNo:"...

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