Hey, I just read in the Manual that one can connect Multiple Cerbo Devices like a Cerbo GX and a Ekrano or another CerboGX over Ve.Can and use the second Cerbo for more tank Inputs. This is written on Page 19 of the Cerbo Manual.
Well I bought an Ekrano GX and already installed it into my RV, now I have to route 2 Ve.Direct, 2 Can and multiple resistive sensors to the Location where the Ekrano is installed.
This leads me to the Question if I could also just buy a CerboGX, install it close to my MPPT, OrionXS DC/DC and the Battery(CAN), connect everything to the Cerbo and just run one CAN Wire to the Ekrano, Yes this would be a little more expensive but I would save a lot of cables and it would make it easier to connect other stuff later on.
Can Someone test or does someone know if all the Informations of connected Devices like Ve.Direct Devices are broadcasted over Ve.Can or just the Tank Inputs?
The manual is fairly explicit (as a stock set up)- it sends tank information over VE CAN.
But I do have a way to test the bms and ve direct idea anyway from cerbo to ekrano. So might try that tomorrow.
Out of curiosity though why do you need to run two can? You know can can be daisy chained so for that you would only need one cable across. Unless they need different speeds?
Hello,
I’ve use to link various devices together like 1 homemade Beaglebone alias Venux, 1 Cerbo GX and 1 Ekrano… liked thru network and CAN BUS. (test switchin RVC, or CAN …)
It works OK, a bit disturbing and some feature/function are not reported…
But globally this is OK…
Xavier
Well You are right, there are no other CAN devices in my Network.
I would need to run
2x Ve.Direct(MPPT and OrionXS)
1x CAN for the BMS
1x Ve.Bus for the Multiplus 3000
1x Resistive Input for Fresh Water (Supersense with the adapter to get resistive Values)
If the Idea with the separate Cerbo GX would work out I could use a spare cable thats already there for the CAN and put the Cerbo where all the other electronics are located under the “Sofa” and I would just need to run a single CAN cable from the Cerbo to the BMS which is close by and there is a piece of floor that has some space under it to run that Cable. parallel to the 00 AWG Cable that connects the Battery to the Multiplus
Btw. I’m replacing a CBE 180 with the CBE 300 Fuse/Relais box with the Setup, I already figured out the Pinout of the 16pin CBE Cable far enough to control the Relais in the Fusebox with my Ekrano, thats also why I can not just throw new cables to that place, that would require me to take the whole RV Apart.
Though I could now unpin a few of the wires (4-6 in total) from the CBE Fusebox Cable that are not needed anymore, like the Waste Water Tank level, Freshwater Tank Level and Ignition and Shore Power cables cause I can account for that by looking at the Input of the Multiplus and Orion XS, the Wasterwater tank had just an On/Off State sensor when it was full, it now has a Mopeka BT Sensor.
Awesome, thanks for the Info, I will try to get an Cerbo GX as fast as possible to confirm that it works, I mean I could maybe implement some workarounds with MQTT and NodeRED if needed but I would like to have it as stock as possible just to make sure I could resell the RV without any hesitations
Have you already had a chance to test it?
Oh gosh i totally forgot. I am going to pull out the kit now.
[Edited] i am definitely going to have to do it on a fresh brain. Its not working i must be missing something small. (But an too knackered to work it out)
I’m not able to show you now, I will try to do something this evening/tomorrow …
1 Cerbo + 1 Ekrano All data availble one Tablet with Node Red or all on the Ekrano …
Xavier.
ere one example with my Cerbo and Ekrano devices connected via CAN ports.
The Cerbo, handleling the Truck batteries and cabin evironement. (Temp., Position, and further other parameters…)
Composed of :
- one Smart shunt 712 500A
- one MPPT 100/20
- One Smart Orion 24/24 400W
- 2 cable temp sensors
- 1 RUUVI BT temp sensor
- 1 Fuel tank level sensor
The Ekrano handleling the LIFE / HOMECAR side.
- 1 Smart shunt 500A
- 1 Inverter 24/1200 (will be replaced by a Multiplus 24/3000 as soon possible
- 1 ET112 when Shore is connected
- X2 12/150AH batteries + Load balancer
- RUUVI sensors
Can bus on the Cerbo Unque ID 2
Can Bus Settings on the Ekrano unique ID 1
…
From the Ekrano screen :
clicking on the Battery, now I can see both batteries system
from the solar charger
level of tanks: now I can see the Main fuel (truck fuel tank)
after that you can tune the system to see information on the VRM
here first draw…
From Victron connect, you can see al the devices… but not manage them… (in grey)
Xavier
Awesome, looks like it works as I was intending to use it! Thats great. Gonna order one now 
Awesome contribution @Xabi