Cerbo GX Installation

Item Default Description
MQTT on LAN (SSL) On Enables MQTT on LAN - More information on MQTT is available
on Victron Community.
MQTT on LAN (Plaintext) Off This setting is required to be enabled when connecting an Marine
MFD
VE.Can port VE.Can CAN-bus profile (Disabled, VE.Can & Lynx Ion BMS 250 kbit/s,
VE.Can & Can-bus BMS 250 kbit/s, CAN-bus BMS 500 kbit/s,
Oceanvolt 250 kbit/s), Send data to VE.Can, Unique device
number for VE.Can, Check unique numbers
BMS-Can port - CAN-bus BMS (500 kbit/s)
CAN-bus CAN-bus profile, Send data to VE.Can, Unique device number
for VE.Can, Check unique numbers
I/O
Analog inputs On Available tank level sensors On/Off, Available Temperature
sensors On/Off
Digital inputs Off Available Digital inputs Off, Door alarm, Bilge pump, Bilge alarm,
Burglar alarm, Smoke alarm, Fire alarm, CO2 alarm, Generator
When using a VE.Bus system, it is possible to configure the severity of problems on the VE.Bus system that should cause a
notification to show up on the Cerbo GX (and make it beep):
• Disabled: The Cerbo GX will never beep or show a notification
• Alarm only: The Cerbo GX will only beep and show a notification when the VE.Bus system switched off in an alarm condition.
• Enabled (default): The Cerbo GX will beep and show a notification
When all done, don't forget to change the access level to user when required.
5.2. Battery State of Charge (SOC)
5.2.1. Which device should I use for SOC calculation?
There are three products types that calculate State Of Charge (SOC). The Cerbo GX itself does not calculate SOC, it only
retrieves it from the connected devices.
The three products that calculate SOC are:
1. Battery Monitors, such as the BMVs, the Lynx Shunt, or the Lynx Ion BMS
2. Multi and Quattro inverter/chargers
3. Batteries with built-in battery monitor and a (mostly BMS-Can) connection to the Cerbo GX.
When to use what?
If you have a battery with build-in battery monitor, such as a BYD or Freedomwon battery; its easy. Use that.
If not, then the options depend on the type of system:
1. If the MultiPlus or Quattro inverter/charger is the only source of charge to the batteries and the only draw then it can function
as a basic battery monitor because it counts what went in and counts what comes out. No need for a dedicated battery
monitor such as the BMV.
2. If the systems consists of an inverter/charger, MPPTs and a GX device, then there is still no need to add a dedicated battery
monitor.
3. For any other system types, such as a boat or vehicle with DC lights and other loads, a dedicated battery monitor will be
required.
5.2.2. The different solutions explained in detail
(A) Battery and Multi or Quattro (a typical backup system)
No battery monitor is required: the Multi or Quattro is the only product connected to the battery and has full control over all charge
and discharge currents. Therefore it can calculate the correct SOC itself.
Configuration:
1. Enable and configure the Battery Monitor in VEConfigure.
2. In the Cerbo GX , in Settings → System setup, verify the selected Battery Monitor. It should be set to the Multi or Quattro.
(B) Battery with Multi or Quattro and MPPT Solar Chargers -ALSO- An EasySolar with GX Device built-in
Cerbo GX Manual
Page 32 Configuration