I have Multiplus-II GX, Smart Solar MPPT 150/45, smart shunt, smart sense and battery with incompatible BMS. Autonomous system without grid connection. Both 24V and 230V loads.
Can I just connect all Victron devices into network via bluetooth to smart shunt as battery current sensor and smart sense as voltage/temperature sensors ?
Does connecting Multiplus and MPPT with VEdirect cable needed and gives any additional options?
In all honesty though unless you have terrible voltage drop (which should be fixed by installing better) and maybe the need to prevent charging under 5°C there is no need.
As i’m not using Multiplus as a charger, can I just connect smart sense and shunt to MPPT, to avoid charging with minus degrees (and prevent BMS trip); and then wire MPPT to Multiplus to transfer all data to VRM?
So only option I have, buy two VEdirect to USB wires, powered USB hub? And smart sence still can not be connected, as it has no VEdirect?
Or I can use ve bus to BT dongle, as LX wrote? But why do I need extra dongle if Multiplus already has bluetooth? What is functionality of this bluetooth?
Multis do not have bluetooth, they are vebus only.
Chargers are vedirect/CAN (with secondary BT).
Smartnetworking (Blueteeth) has limitations, have a read of the manual.
The GX enables better coordination and far more configuration options, including remote access, stats etc.
Smart sense is not designed for the gx system, only for standalone, you dont need it, smartshunt can do voltage, multiplus can do voltage and battery temp
My Multiplus II GX definetly has bluetooth.
What I find from on Victron GX product range [Victron Energy]
Late 2021 / early 2022, the hardware of the MultiPlus-II GX and EasySolar-II GX product range has been updated. The update adds Bluetooth and changes the CAN-communications port from a limited 500kbps BMS-Can only type to a full featured VE.Can port (non-isolated). Status per model, updated 2024-05-20:
MultiPlus-II GX 24 3kVA; per HQ2231. …
I’m looking for manual where this communication logics is explained, but multiplux GX is not covered there.
The GX is a combination of a multi and a built in GX (small version).
The latter has some bluetooth, the multi has none.
GX bluetooth, as per the manuals, is used for setup it is not used for system comms.
GX’s are intended for wired only configurations.
They support additional dongles for other purposes and connecting sensors like Ruuvi’s etc.
Information is spread across various guides:
The GX/cerbo manual
VE smart networking
The built in GX is very limited in capabilities/connectivity compared to a standalone Cerbo.
I’m not sure if I need to create new topic, but I have small question. According to the manual/technical datasheet zero load power of Multiplus II GX 24/3000 shall be 13W, but according data from VRM portal it’s aroun 40W with no AC loads connected.
The inverter load is 12w that is its self consumption. The rest is all the other components in the system.
Although, that could also be an ‘assumed’ amount if you are using the victron itself to get that figure on the vrm. It is always a pessimistic wattage.