Victron energy Venus GX Manual page 25

Single VE.Bus products
To connect a single VE.Bus product, connect it to one of the VE.Bus sockets on the back of the CCGX.
Both sockets are identical, use either one. Use a standard RJ45 UTP cable, see our pricelist.
Parallel, split- and three-phase VE.Bus systems
To connect multiple VE.Bus products, configured as a parallel, split-phase or three phase VE.Bus
system, connect either the first or the last VE.Bus product in the chain to either one of the VE.Bus
sockets on the back of the CCGX. Use a standard RJ45 UTP cable, see our pricelist.
Systems consisting of five or more VE.Bus products, connected to a CCGX with serial number HQ1628
or earlier require the 'CCGX dongle for large VE.Bus systems (Product Number: BPP900300100).
VE.Bus systems with Lithium batteries and a VE.Bus BMS
Connect the CCGX to the socket labelled 'MultiPlus/Quattro', or to one of the Multis/Quattros in
the system. Do not connect it to the Remote panel socket on the VE.Bus BMS.
Note that it will not be possible to control the On/Off/Charger Only switch. This option is
automatically disabled in the CCGX menu when a VE.Bus BMS is used. The only way to control a
Multi or Quattro when used with a VE.Bus BMS is to add a Digital Multi Control to the system.
Setting the input current limit is possible in systems with a VE.Bus BMS.
Combining MultiPlus/Quattro with a VE.Bus BMS and a Digital Multi Control is possible. Simply
connect the Digital Multi Control to the RJ-45 socket on the VE.Bus BMS labelled Remote panel.
To allow auto-power-down in the CCGX in case of a low battery, make sure the CCGX is powered
via the VE.Bus BMS: connect Power in V+ on the CCGX to Load disconnect on the VE.Bus BMS.
And connect both negative leads to the negative stub of a common Battery.
Combining the CCGX with a Digital Multi Control
It is possible to connect both a CCGX and a Digital Multi control to a VE.Bus system. The ability to
switch the product On, Off or set it to Charger Only via the CCGX will be disabled. The same applies to
the input current limit: when there is a Digital Multi Control in the system, the input current limit
which is set at that control panel will be the master-setting, and changing it on the CCGX will not be
possible.
Connecting multiple VE.Bus systems to a single CCGX
Only one VE.Bus system can be connected to the VE.Bus ports on the back of the CCGX. The
professional way to to monitor more systems is to add a second CCGX.
If you do require to connect more than one system to the same CCGX, use an MK3-USB. Functionality
will be limited:
Only the system connected to the built-in VE.Bus ports is used to generate the data on the
Overview pages.
All connected systems will be visible on the Device-list
All connected systems will be taken into account for Energy consumption and distribution
calculations (kWh graphs on VRM)
Only the system connected to the built-in VE.Bus ports is used for the Generator start/stop logic
The CCGX will not send proper data to VRM any more. The Venus GX does send information of
both systems to VRM: its therefor better to use a Venus GX for systems like this.
In case of an ESS system, only the system connected to the built-in VE.Bus ports is used in the
ESS mechanisms. The other one is displayed in the device list only.