question

Tom avatar image
Tom asked

Connecting multiple MPPT to VRM

I have 7 MPPT and a BMV-712 connected in parallel and working well.

I can access these in the app through bluetooth but I would also like to be able to access them trough VRM. I had planned to use an Octo GX to connect them as this has 10 ve.direct ports. When I try to purchase the Octo GX I'm told it is discontinued.

So my questions are:
Is the Octo GX permanently discontinued?
Is there an alternative with 8 or more ve.direct ports?
I see the Maxi GX has what looks like a USB to 12 x ve.direct inside it, is this available to purchase?

MPPT ControllersVRM
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2 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

You could use a Cerbo, a USB hub and VE.direct to USB cables. Some of the bigger MPPTs have VE.Can which can be daisy chained.

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Tom avatar image
Tom answered ·

These MPPTs only have the single ve.direct port so CAN is not an option in this instance. As you say a Cerbo with multiple ve.direct to USB would work but having 5 of them hanging out of a hub seems a bit messy, these units in the Maxi GX seem Ideal. I wonder if they would share the schematic. maxi-gx-open.png


maxi-gx-open.png (977.6 KiB)
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