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Steve Mitchell avatar image
Steve Mitchell asked

Is the Digital Multi Control still required with a CCGX+MultiPlus?

When I built a Victron system on my boat about 2 years ago with a MultiPlus, Victron LiFePO4 battery and VE.Bus BMS, you had to have a DMC connected as well if you wanted to set shore side power limits, as the CCGX would not allow you to do so.


I thought I remembered seeing that this was ONLY the case with the VE.Bus BMS, which I am not using in a new install, and potentially not required at all anymore with a recent CCGX firmware upgrade. Can anyone confirm this?


To be clear, the components I would be installing Victron-wise are:

  • MultiPlus 12v / 110vac / 3000w / 120a charge
  • CCGX
  • BMV-712
MultiPlus Quattro Inverter ChargerCCGX Color ControlDigital Multi Control
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mrdias avatar image mrdias commented ·

i am also very confused with this. I have a multiplus, BMS and color control. I cant edit the input power limit or turn off the inverter without going where its intalled. The color control says i cant because i have a BMS.

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Mark avatar image Mark ♦♦ mrdias commented ·

Yes that's correct. The feature is disabled on the CCGX if you use a VE.Bus BMS or a CCGX.

Extract from CCGX manual below;

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mrdias avatar image mrdias Mark ♦♦ commented ·

thank you, how do i add a multi control if both rj45 ports are taken by the BMS and CCGX

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Mark avatar image Mark ♦♦ mrdias commented ·

Plug it into the 'Remote Panel' port on the VE.Bus BMS.

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mrdias avatar image mrdias Mark ♦♦ commented ·

wow, so obvious lol, thanks so much.

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Mark avatar image
Mark answered ·

You can set the input current limit directly from the settings on the CCGX.

If you have both a CCGX & a DMC then the related setting in the CCGX are disabled (current limit & Multi 'charger only'/'off'/'on' control), as the DMC becomes the master.

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Steve Mitchell avatar image Steve Mitchell commented ·

Thanks @Mark for the great answer along with the accompanying details.

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stavarda avatar image stavarda commented ·

@Mark has this issue been addressed for the Canvu gx or Cerbo units ? in any update or will it remain as a conflict between parts?

thx

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Mark avatar image Mark ♦♦ stavarda commented ·

Hi Stavarda, this limitation is unrelated to the exact GX device used. The issue is that the DMC has a physical switch (for on/off/charger only) and a physical knob (for input current limit) - so it is not really possible/practical for software to 'over rule' the physical settings.

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