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As the title says, everytime i chop and change my equipment selections for my upcoming RV build, im presented with more confusing aspects.
Do i need the DMC with the above mentioned components if im using a VE.Bus BMS or has that been removed now? Can i control the Charger only/On/Off portions with the GX Touch 50 or will i be required to install another component, that being the DMC???
System will also have MPPT, smartshunt, 2/3 x lifepo4, smart battery protect
Currently it is not possible to remotely switch the Multi using a GX device when a VE.Bus BMS is installed. Instead of the DMC you also could use the VE.Bus smart Dongle to control the Multi using the VictronConnect app.
@Matthias Lange - DE Will that work if I still have the VE.Bus BMS installed in the system? One VE.Bus port on the Multiplus would go to the Smart dongle, and the other VE.Bus port would go to the BMS?
I think im getting confused looking at some of the Victron Schematics that incorporate lithium batteries, ve.bus bms, multiplus and the CCGX.
Do i need to control the voltage or the charger only/on/off on the inverter? The inverter will be used as the charger, and then ofcourse an inverter when im not connected to mains power.
@Brent1982, I can't comment on the VE Bus Smart Dongle as I do not have one. If you want to control the Multiplus from the Cerbo, you can always wire the Charge Disconnect and Load Disconnect into the Aux Ports, and then use the 2 Wire BMS assistant on the Multiplus rather than VE.Bus Assistant. I tested this last night as I too am frustrated at the lack of support for VE.Bus BMS and Cerbo, and just do not have space to install a DMC.
If the VE.Bus Smart Dongle will control the MultiPlus then I have no idea why the Cerbo can't !
@Matthias Lange - DE, Could we at least get some direction from Victron if this will ever be addressed, as in it is just a software issue or is it broader than that and will never get addressed.
@Bathnm i know what you mean. As great as victron gear is, its very annoying to need multiple different components to do very similar things.
Im still no closer to understanding if i can use the ve.bus BMS and the ve.bus smart dongle in the same install and still control the settings of the multi. Or if i even need to control them. Was pretty much after a set and forget system and just have monitoring. And know that if i do go offgrid, the inverter will do what i need it to do when i need it to do it.
Maybe im just over thinking it all and over complicating it. It is only a caravan after all. And i will only have the need to use a couple of AC appliances occasionally whilst offgrid and maybe a little bit of Air conditioning. Otherwise most things will be 12v DC
@Brent1982 The BMS and the Cerbo GX are connected directly to the Multi and the DMC/VE.Bus Smart dongle will be connected to the BMS' remote port.
@Bathnm If I remember correctly I saw somewhere a comment that Victron is working on a solution, but I can't find it anymore.
Hi @Matthias Lange - DE, Do you mean this port that is circled.I keep hearing that there was a comment, but none can provide any details.
@Matthias Lange - DE, Been looking at getting the Smart Dongle and connecting it so at least I can control the Multiplus when a VE.Bus BMS is in use through my iPhone. However, looking at the manual (https://www.victronenergy.com/live/vebus_smart_dongle_manual) it clearly says that the "Input current limit and on/off/charger only control" is not supported when a VE.Bus BMS is installed. Is the manual now out of date?
