odddsocks
January 26, 2026, 11:02pm
1
Hi
Looking to read SOC from Frogstar 32kW-48V battery with CCGX device, v3.55.
both CCGX + CERBO have VE.can port, believe CERBO has proven link to Frogstar battery.
Have PEAK-CAN bus dongle, can see CCGX sending PDO messages, 305h +307h at 500baud. device=CAN-bus BMS LV
But nothing from Frogstar / Selpos BMS, protocol=Victron-CAN
if Frogstar protocol set to Pylon.CAN, loads messages at 500baud, so wiring is correct.
Any more details on CERBO setting that work, so I could duplicate in CCGX ?
There might be Modbus-RS485 solution.
odddsocks
January 27, 2026, 8:34pm
2
Got it!
Set CCGX Victron-CAN, only 500k baus avaliable, sends messages in red box.
Set Frogstar to Pylon, know was also 500k from my peak device, BMS sends anyway - not in response to CCGX
one other issue, 3x MPPT stuck in float mode, till I deleted use BMS in each CCGX device connection tab.
must be one of 16 CAN meesages in yellow box, see 22% SOC on CCGX, maybe EV charge now has SOC.
Terminating resistor at both CCGX & BMS, cable wired as VE Canbus Type A
nickdb
January 28, 2026, 5:00am
3
VE CAN is for victron devices only.
Unfortunately that BMS and dongle are also unsupported, so will move this to the modifications section where there are almost certainly related topics worth searching for.
