I cannot download ve.configure files from VRM.
This problem present itself after installing a Cerbo GX device instead of the built-in GX in the Multiplus II (because I need the CAN-BMS port). I installed the new Cerbo and migrated settings to it using the assistant in VRM interface.
Configuration:
Cerbo GX firmware 3.42 connected to:
Multiplus-II 48/5000 GX via VE.BUS.
Everything seems to work, except the ve.configure download.
Did you disconnect the internal GX?
Is two-way comms enabled on the new GX VRM settings?
Hi Nick,
I have not disconnected the internal GX, I would like to not open up the unit if I can avoid it. And yes, two-way communication is enabled.
I noticed that the Cerbo GX is a MK1 device, as per this: 4. Connecting Victron products
Could there be compatibility issues with a MK1 Cerbo and a newer MPII?
You can’t have two GX’s connected to an inverter, the internal one needs to be disconnected or powered off.
All right, thanks! I will disconnect the internal GX and see if it works.
Maybe you didnt know, but the multiplus 2 GX VE CAN port can be configured as BMS CAN port
That may not apply to much older models. There was some CAN restriction on older units, can’t exactly recall which.
I think you mean the old multiplus? as far as i know all multiplus 2 GX have that option, its not that old 
Nope, early 2020’s there was a hardware change where the internal GX went from a limited CAN port (fixed baud) to a more conventional, variable profile port.
Ah oke, Then youre right
Thanx for the info
One of mine is an early model (2020 wk15) that has can bms, so i thought you were talking about the older multiplus
Thanks Marc, I know this but then I cannot use the ports for VE.CAN any more, which I kind of need
And indeed it works now, after disconnecting internal GX.
Thanks!
I get it! 
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