dbus-serialbattery icon indicating copy to clipboard operation
dbus-serialbattery copied to clipboard

Seplos BMS

Open gerdluthe opened this issue 2 years ago • 2 comments

Would be very nice to have the seplos BMS supported here. The Seplos BMS got a CAN and two RS485 Ports, documentation is available at several places, can post if needed. SEPLOS CANBUS Protocol V1.0 www.seplos.comhttps://solaranzeige.de › phpBB3 › download › file

gerdluthe avatar Jun 18 '22 20:06 gerdluthe

https://us.v-cdn.net/6034073/uploads/OJ8IDWBXR179/seplos-bms-communication-protocol-v2-0.pdf

gerdluthe avatar Jun 18 '22 20:06 gerdluthe

Seplos supports connection to Victron out of the box via can bus, no need to support here.

SamuelBrucksch avatar Jul 26 '22 04:07 SamuelBrucksch

@Louisvdw I think this can be closed as per SamuelBrucksch's comment above.

pau1phi11ips avatar Aug 15 '22 13:08 pau1phi11ips

@Louisvdw I would like to re-open this item, looking at the results of Andy from the Off-Grid Garage: https://www.youtube.com/watch?v=EDM_acJyFxw

As Andy mentions, Victron takes the upper limit voltage of the BMS as charging target. As your FAQ mentions, MAX_CELL_VOLTAGE and MIN_CELL_VOLTAGE are in your case actually separately defined.

Planning to buy both Victron and Seplos, I would like to avoid that problem. Did not figure out yet if I can somehow adapt the VE.Can interpretation on the GX side, but otherwise your driver will be my alternative option (via RS485). When I actually get the HW, I may also be able to help you out on the implementation, but time is always a limiting factor.

Rimco avatar Jan 31 '23 21:01 Rimco

It also seems that the Seplos provides only limited information via can bus, no single cell voltages for example. They're available on RS485 though.

wollew avatar Mar 29 '23 15:03 wollew

@Rimco Agreed with you, seems the only viable solution would be to have Seplos supported with dbus-serialbattery I believe it would be based on the RS485 protocol as it exposes everything. Any tentative yet?

cheers

Lucifer06 avatar Sep 05 '23 13:09 Lucifer06

Check out the documentation, it is supported for quite a while now.

wollew avatar Sep 05 '23 14:09 wollew

Ha cool, I obviously looked at an outdated doc. Thx!

Lucifer06 avatar Sep 05 '23 17:09 Lucifer06

Do I need a separate RS485 cable/USB connection or does it also work through the CAN bus?

andreas-bulling avatar Sep 18 '23 21:09 andreas-bulling

You need a serial connection.

mr-manuel avatar Sep 19 '23 04:09 mr-manuel

the one with two wires connected only or with all? (sorry for using this issue to ask this but I don't know where else to ask)

andreas-bulling avatar Sep 19 '23 16:09 andreas-bulling

Please open a discussion for this.

mr-manuel avatar Sep 19 '23 22:09 mr-manuel