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Connecting to my PACE BMS batteries

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Apologies, I've re-uploaded the zip file.

I was pulling it remotely from my neighbor's pc to my onedrive and think the onedrive wasn't fully synced yet when I downloaded the zip.

The download file should now be "BMS Tools V3.31 [ZWN]-20260731T110729Z-1-001.zip" and the files should now be in the folders that was empty.

Please check if it is working now, if not just let me know otherwise I'll need to re-pull it from his pc again.

On 2026/07/29 at 5:22 PM, Moffat said:

Any chance of you having a similar set up for FreedomWon eTower batteries? This is exactly what I've been asking Solis and FW to have natively.

That would be a negative.

  • Author
5 hours ago, Moffat said:

C'est la vie, but thanks. I like the way your dashboard looks, very nice.

FreedomWon eTower uses a PACE BMS as far as I am aware.

Would start by trying to connect to the battery using PBMSTools and see how far you get.

  • 2 weeks later...
On 2026/08/01 at 11:27 PM, Sc00bs said:

FreedomWon eTower uses a PACE BMS as far as I am aware.

Would start by trying to connect to the battery using PBMSTools and see how far you get.

I do connect to the batteries using PBMSTools, there's no issue there, it's getting a quick-view dashboard, that would be most ideal. FW was good enough to supply me with a USB-to-RS232 connector cable, so I do connect but it then is seldom especially when system "seems to be working" and life tugs from various 'other ports' (pun intended).🤣

Edited by Moffat

  • Author
4 hours ago, Moffat said:

I do connect to the batteries using PBMSTools, there's no issue there, it's getting a quick-view dashboard, that would be most ideal. FW was good enough to supply me with a USB-to-RS232 connector cable, so I do connect but it then is seldom especially when system "seems to be working" and life tugs from various 'other ports' (pun intended).🤣

Check what data protocol the BMS is outputting to the RS485 port.

My guess is that the Freedom One BMS is probably defaulting to a different protocol on the RS485 port and that is why it is not working.

You can either change the protocol using PBMSTools to PACE_MODBUS protocol or alternatively find an integration that understand the RS485 protocol your BMS is set for.

On 2026/08/14 at 5:57 PM, Sc00bs said:

Check what data protocol the BMS is outputting to the RS485 port.

My guess is that the Freedom One BMS is probably defaulting to a different protocol on the RS485 port and that is why it is not working.

You can either change the protocol using PBMSTools to PACE_MODBUS protocol or alternatively find an integration that understand the RS485 protocol your BMS is set for.

Much obliged @Sc00bs

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