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joagie avatar image
joagie asked

Multiplus 12/1600/70 with MK3 - How to use multiple devices with a single VE.bus port?

Hi all,

I want to use a raspberry as the venus device. I want to connect my MPPT 100-50, BMV712 with the VE-Bus and my Multiplus with the MK3 Interface.

But I want to use the normal remote control the digital multicontrol 200/200a too. Is there a way to connect all 3 devices (multiplus, multicontrol and MK3) at the same time ? As far as I know all three divices have only one RJ45 connector.

Thanks for help

Hoagie

Multiplus-IIRaspberry PiMK3Digital Multi Control
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joagie avatar image joagie commented ·

Hi all,

can I use a item like this ?

https://www.amazon.de/Equip-127603-RJ45-Y-Splitter-Stecker/dp/B000LRTEPY/ref=sr_1_7?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=2N787IHVK28VM&keywords=rj45+doppler&qid=1571508862&sprefix=rj45+d%2Caps%2C168&sr=8-7#customerReviewsRJ45 double

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Rob Duthie avatar image Rob Duthie commented ·

Hi

Yes you should be able to as it is a VE bus device if this connects to the Mulitplus then the mulitplus connects to the Raspi via the Mk USB device is should pick it up.

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2 Answers
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi @Joagie,

It is possible to use a straight through RJ45 splitter to increase the VE.Bus ports available on these smaller units (and the other devices that only have 1 VE.Bus port).

alt text

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joagie avatar image joagie commented ·

Great thanks a lot.

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esterill avatar image
esterill answered ·

Hi, I would like to do this with some Multiplus 12|800|35 units. Can you elaborate on the straight through RJ45 splitter? Which one is this and/or what is the schematic? I have tried some Lindy 1 into 2 splitters but they do not work.

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Guy Stewart (Victron Community Manager) avatar image Guy Stewart (Victron Community Manager) ♦♦ commented ·

Hi @esterill,

The recommended known working part is Victron Part number - ASS030065510 - RJ45-splitter 1xRJ45 male/15cm cable/2xRJ45 female

Your Victron dealer should be able to supply it.

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esterill avatar image esterill Guy Stewart (Victron Community Manager) ♦♦ commented ·

Thank you very much. I was unable to find this on the Victron website. I will order some now.

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Guy Stewart (Victron Community Manager) avatar image Guy Stewart (Victron Community Manager) ♦♦ esterill commented ·

Thanks to you too, I have asked the web team to update the website to include this product so others can find it in the future.

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carlrjohnson avatar image carlrjohnson Guy Stewart (Victron Community Manager) ♦♦ commented ·
I don't want to revive a dead thread, but in my case I have a DMC - Cerbo - MP - bluetooth MP adapter. Since the cerbo and the MP have two ports each I was able to daisy chain all of these devices. Since you answered his question with a 'use this 'part' and not a 'don't do this' I am sondering why I was told that I shouldn't run a DMC and a cerbo. Is there any reasoning behind this, or was it for redundancy?
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