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Hallo
I have an ESS system with a Multiplus-ll 48/3000 / 35-32 on L1
and would like to set one more in parallel or on L2.
I have a 48/3000 / 35-32 GX
I want to hear if the two devices can run together or if a brand new one can run together with the old one I have.
They have the following number.
Multiplus-ll (it is running today with a Cerbo GX)
PN: PMP482305010
SN: HQ1933WREV4
hw rev 12
Multiplus-ll GX (the one I would like to add)
PN: PMP482306000
SN: HQ201572K91
hw rev 05
In general, yes you can use a MultiPlus GX with a MultiPlus.
To be sure, it is best to compare the VE.Bus firmware versions of the two devices and make sure they are the same.
Check on the vertical logic PCB and you can see a firmware number next to the PIC like in my picture. If the first four digits are the same (for example 2629xxx), then you can connect the two units in a multi phase system or parallel or whatever you want to do.
I had this problem last year and described it in here together with the solution:
https://community.victronenergy.com/questions/91403/how-to-balance-2-mp-iis-in-parallel.html
