Need cable network selection help CCGX, Multiplus II, eg4 ll 24v

Have a news van that has an APD 24v aux alternator installed. Plan to add eg4 ll v2 battery with a TE contactor LEV200A5NAA, MultiPlus II 24v 3000, BMV-712. The van was setup with a color control gx and a fancy panel for mounting and display and either had a Quattro or multiplus in it. I’m not quite sure how the communication between the MP, CCGX, and the eg4 battery is supposed to work. Should I just use the bmv-712 to monitor the battery? The eg4 has can capable communication and I have seen people make cables and plug them into cerbos but no one with ccgx. I understand it’s not supported any longer but hoping to make this work. The contactor is rated for 500A and the alternator has max output of 300A, the battery has 200A charge capability. I think the relay on any of the bmv, MP, or the ccgx should be able to control the contactor if the charging exceeds the battery capability. Cheers, J

CCGX does not have CAN capability.XXX<< correction one port with 2 sockets.

MP <> CCGX is VE-bus, uses UTP type cable.

BMV-712.<> CCGX is VE direct - special cable needed.

Yes with proper configuration.

Perhaps you need to upgrade to a Cerbo?

The ccgx has two rj45 VE Can ports on the back, which are nmea2000 3rd party connections allowed, according to a data communications with ve products pdf. On the ccgx diagram in the packaging it shows skyalla-i or mppt 150/70 or mppt 150/85 being able to connect to it. Is it only for solar chargers or is this information conflicting?

If I were to get a cerbo, could I use the ccgx as a display and secondary device?

Sorry, the CCGX does have one VE-can bus, the Cerbo has two.

see Victron GX product range [Victron Energy]

@drfrisker

See topic below for info on connecting multiple GX devices. The CCGX is older and may struggle. This is not in the manual.

Okay so I ended up with the following devices. Got sick this winter and couldn’t work on it much but diving into it now. Drew up a diagram on how I intend for it to work. The BMV-712 should likely control the solid state relay.

1 Is it possible I still need a cerbo device to replace the ccgx?
2 If I wanted to add 200w or 400w of solar, what would be the easiest way or would it be possible?
3 Would I need a buffer battery on the 24v line before the solidstate relay?

Victron products
MultiPlus II 24v 3000 70-50
BMV-712 with shunt thing
Color Control GX
battery temp sensor salvaged from the van

Battery
EG4 LL V2 24v 5kw

Vehicle generator/alternator (this is a secondary unit)
American power 24V 300amp High Output 55i-300ACT-28J

Relay
Power Gate RY30036BB-0010A Solid State Uni Directional Relay 24V 300A

The can connection from the EG4 should go to the ccgx as the MP II doesn’t have can

Definitely it is recommended, or an Ekrano if you want an integrated display.
The CCGX is end of life, it is restricted to Venus version 3.55 due to the limited resources it has, so will not see new features or fixes.
I would not be deploying any new system or major upgrade using a CCGX (if the budget permits).

Made some progress tonight -
got the LG4 ll communicating to the CCGX just fine over VECan/canbus. I did use a CAN terminator in the other port of the CCGX but I’m not sure if it’s needed
the MP II communicates with the CCGX over VE.Bus ok.
connected the victron app to the BMV712 using bluetooth. Can program the relay to turn on/off with over voltage but not charge current. the BMV is connected to the smart shunt and the ccgx with victron direct

The MK3-USB VE.Bus to USB-C adapter I bought isn’t working, the victron app doesnt find the ccgx - I will try another ethernet cable tomorrow. Is this product supposed to work with the CCGX? Maybe with a firmware update ( but not too new of a firmware so as to break some functionality ) or older version of the victron app? Is there another item that would work?

The mk3 isn’t for that. It is to talk to the vebus inverters only. If you use the VRM tab of VC app then it should see the install.
Don’t connect the mk3 and CCGX to the inverters at the same time.

You need a terminator in the other port.

of the VE bus or the VE can?

VRM tab of VC app then it should see the install

thank you

CAN bus.
Vebus does not require any.