Victron energy Cerbo GX User manual

Cerbo GX Manual
Rev 25 - 10/2023
This manual is also available in HTML5.
ENGLISH

Table of Contents
1. Safety instructions ................................................................................................................... 1
2. Introduction ........................................................................................................................... 2
2.1. What is the Cerbo GX? ..................................................................................................... 2
2.2. What's in the box? ........................................................................................................... 2
3. Installation ............................................................................................................................. 3
3.1. Cerbo GX Overview of connections ....................................................................................... 3
3.2. Mounting options and accessories ........................................................................................ 4
3.3. Powering the Cerbo GX .................................................................................................... 5
3.4. GX Touch 50 & GX Touch 70 .............................................................................................. 6
3.5. Deactivating touch input control ........................................................................................... 8
3.6. Relay connections ........................................................................................................... 9
4. Connecting Victron products .................................................................................................... 10
4.1. VE.Bus Multis/Quattros/Inverters ........................................................................................ 10
4.2. AC load monitoring ........................................................................................................ 11
4.3. Battery Monitor SmartShunt, BMV-700 series; and MPPTs with a VE.Direct port ................................. 11
4.3.1. DC load monitor mode .......................................................................................... 12
4.4. VE.Can Devices ........................................................................................................... 13
4.5. VE.Can and BMS-Can Interfaces ....................................................................................... 13
4.6. Inverter RS, Multi RS and MPPT RS .................................................................................... 14
4.7. BMV-600 series ............................................................................................................ 14
4.8. DC Link Box ................................................................................................................ 14
4.9. VE.Can Resistive Tank Sender Adapter ................................................................................ 14
4.10. Connecting a GX Tank 140 ............................................................................................. 14
4.11. Connecting hardwired Victron temperature sensors ................................................................. 15
5. Connecting supported non-Victron products ................................................................................. 16
5.1. Connecting a PV Inverter ................................................................................................. 16
5.2. Connecting a USB GPS .................................................................................................. 16
5.3. Connecting a NMEA 2000 GPS ......................................................................................... 17
5.4. Connecting a Fischer Panda Generator ................................................................................ 17
5.5. Connecting Tank Level Sensors to the GX Tank Inputs ............................................................... 18
5.6. Increasing the number of tank inputs by using multiple GX devices ................................................ 19
5.6.1. Introduction ...................................................................................................... 19
5.6.2. Requirements .................................................................................................... 20
5.6.3. Configuration step-by-step ..................................................................................... 20
5.7. Connecting third-party NMEA 2000 tank senders ..................................................................... 21
5.8. Mopeka Pro Check LPG and Water Bluetooth Sensors .............................................................. 22
5.8.1. Installation ........................................................................................................ 22
5.8.2. Configuration .................................................................................................... 23
5.8.3. Tank level monitoring ........................................................................................... 24
5.9. Wakespeed WS500 alternator regulator support ...................................................................... 25
5.9.1. Introduction ...................................................................................................... 25
5.9.2. Requirements .................................................................................................... 25
5.9.3. Wiring the WS500 to VE.Can .................................................................................. 25
5.9.4. Wiring Example .................................................................................................. 26
5.9.5. GX device user interface for WS500 .......................................................................... 27
5.9.6. WS500 data on the VRM Portal ............................................................................... 27
5.9.7. Troubleshooting & FAQ ......................................................................................... 28
5.10. Wireless Bluetooth Ruuvi temperature sensors ...................................................................... 29
5.11. Connecting IMT Solar Irradiance, Temperature and Wind Speed Sensors ....................................... 31
5.11.1. Data Visualisation - VRM ..................................................................................... 34
5.12. Connecting a ComAp CM-Ethernet module .......................................................................... 34
5.12.1. Introduction ..................................................................................................... 34
5.12.2. Installation & Configuration ................................................................................... 35
6. Internet connectivity ............................................................................................................... 37
6.1. Ethernet LAN port ......................................................................................................... 37
6.2. WiFi ......................................................................................................................... 38
6.3. GX LTE 4G ................................................................................................................. 38
Cerbo GX Manual

6.4. Mobile (cellular) network using a 3G or 4G router ..................................................................... 38
6.5. USB tethering using a mobile phone .................................................................................... 39
6.6. Manual IP configuration ................................................................................................... 39
6.7. Multiple connections (failover) ........................................................................................... 39
6.8. Minimise internet traffic ................................................................................................... 39
6.9. More information about setting up an internet connection and VRM ................................................ 41
7. Accessing the GX device ......................................................................................................... 42
7.1. Using VictronConnect via Bluetooth ..................................................................................... 43
7.2. Accessing via built-in WiFi Access Point ............................................................................... 44
7.3. Accessing the Remote Console via local LAN/WiFi Network ........................................................ 45
7.3.1. Alternative methods to find the IP address for Remote Console .......................................... 45
7.4. Accessing via VRM ........................................................................................................ 46
7.5. The Remote Console menu .............................................................................................. 47
8. Configuration ....................................................................................................................... 48
8.1. Menu structure and configurable parameters .......................................................................... 48
8.2. Battery state of charge (SoC) ............................................................................................ 56
8.2.1. Which device should I use for SoC calculation? ............................................................. 56
8.2.2. The different solutions explained in detail .................................................................... 56
8.2.3. Notes on SoC .................................................................................................... 57
8.2.4. Selecting SoC source ........................................................................................... 57
8.2.5. Details on VE.Bus SOC ........................................................................................ 58
8.2.6. The System Status menu ...................................................................................... 58
8.3. Customise the logo on the Boat & Motorhome page .................................................................. 59
8.4. LEDs and Push-button .................................................................................................... 59
8.4.1. LEDs .............................................................................................................. 59
8.4.2. Small recessed button above the Power in terminal block ................................................. 59
8.5. Temperature relay configuration ......................................................................................... 60
9. Firmware updates .................................................................................................................. 62
9.1. Changelog .................................................................................................................. 62
9.2. Via internet or with microSD-card/USB-stick ........................................................................... 62
9.2.1. Direct download from the internet ............................................................................. 62
9.2.2. MicroSD-card or USB-stick .................................................................................... 63
9.3. Revert to a previous firmware version .................................................................................. 63
9.3.1. Stored firmware backup feature ............................................................................... 64
9.3.2. Install a specific firmware version from SD/USB ............................................................ 65
9.4. Venus OS Large image ................................................................................................... 65
10. VE.Bus Inverter/charger monitoring .......................................................................................... 66
10.1. Input current-limiter setting .............................................................................................. 66
10.2. Phase rotation warning .................................................................................................. 67
10.3. BMS connection lost alarm ............................................................................................. 67
10.4. Grid failure monitoring ................................................................................................... 68
10.5. Advanced menu .......................................................................................................... 68
10.6. Alarm status monitoring ................................................................................................. 69
10.7. VE.Bus alarm setup menu .............................................................................................. 69
10.8. Device menu .............................................................................................................. 69
10.9. Solar & Wind Priority .................................................................................................... 70
11. DVCC - Distributed Voltage and Current Control ........................................................................... 71
11.1. Introduction and features ................................................................................................ 71
11.2. DVCC Requirements .................................................................................................... 72
11.3. DVCC effects on the charge algorithm ................................................................................ 73
11.3.1. DVCC effects when there is more than one Multi/Quattro connected ................................... 73
11.4. DVCC features for all systems .......................................................................................... 74
11.4.1. Limit charge current ........................................................................................... 74
11.4.2. Limit managed battery charge voltage ...................................................................... 74
11.4.3. Shared Voltage Sense (SVS) ................................................................................. 75
11.4.4. Shared Temperature Sense (STS) ........................................................................... 75
11.4.5. Shared Current Sense (SCS) ................................................................................. 76
11.4.6. Controlling BMS ................................................................................................ 76
11.5. DVCC features when using CAN-bus BMS battery .................................................................. 77
11.6. DVCC for systems with the ESS Assistant ............................................................................ 78
Cerbo GX Manual

12. VRM Portal ......................................................................................................................... 79
12.1. VRM Portal introduction ................................................................................................. 79
12.2. Registering on VRM ..................................................................................................... 79
12.3. Datalogging to VRM ..................................................................................................... 79
12.4. Troubleshooting data logging ........................................................................................... 81
12.5. Analysing data offline, without VRM ................................................................................... 84
12.6. Remote Console on VRM - Setup ...................................................................................... 84
12.7. Remote Console on VRM - Troubleshooting ......................................................................... 85
13. Marine MFD integration by App ................................................................................................ 87
13.1. Introduction & requirements ............................................................................................ 87
13.2. Raymarine MFD Integration ............................................................................................ 88
13.2.1. Introduction ..................................................................................................... 88
13.2.2. Compatibility .................................................................................................... 88
13.2.3. Wiring ........................................................................................................... 88
13.2.4. GX device configuration ....................................................................................... 88
13.2.5. Configuring multiple battery measurements ................................................................ 89
13.2.6. Installation step-by-step ....................................................................................... 89
13.2.7. NMEA 2000 .................................................................................................... 90
13.2.8. Generic and supported PGNs ................................................................................ 90
13.2.9. Instancing requirements when using Raymarine ........................................................... 90
13.2.10. Before LightHouse 4.1.75 ................................................................................... 90
13.2.11. LightHouse 4.1.75 and newer ............................................................................... 91
13.3. Navico MFD Integration ................................................................................................. 91
13.3.1. Introduction ..................................................................................................... 91
13.3.2. Compatibility .................................................................................................... 91
13.3.3. Wiring ........................................................................................................... 92
13.3.4. GX device configuration ....................................................................................... 92
13.3.5. Configuring multiple battery measurements ................................................................ 92
13.3.6. Installation step-by-step ....................................................................................... 93
13.3.7. NMEA 2000 .................................................................................................... 93
13.3.8. Generic and supported PGNs ................................................................................ 93
13.3.9. Troubleshooting ................................................................................................ 93
13.4. Garmin MFD Integration ................................................................................................ 94
13.4.1. Introduction ..................................................................................................... 94
13.4.2. Compatibility .................................................................................................... 94
13.4.3. Wiring ........................................................................................................... 94
13.4.4. GX device configuration ....................................................................................... 94
13.4.5. Configuring multiple battery measurements ................................................................ 95
13.4.6. Installation step-by-step ....................................................................................... 95
13.4.7. NMEA 2000 .................................................................................................... 96
13.4.8. Generic and supported PGNs ................................................................................ 96
13.5. Furuno MFD Integration ................................................................................................. 96
13.5.1. Introduction ..................................................................................................... 96
13.5.2. Compatibility .................................................................................................... 96
13.5.3. Wiring ........................................................................................................... 97
13.5.4. Configuration ................................................................................................... 97
13.5.5. Configuring multiple battery measurements ................................................................ 98
13.5.6. NMEA 2000 .................................................................................................... 98
13.5.7. Generic and supported PGNs ................................................................................ 98
14. Marine MFD integration by NMEA 2000 ....................................................................................... 99
14.1. NMEA 2000 Introduction ................................................................................................ 99
14.2. Supported Devices / PGNs ............................................................................................. 99
14.3. NMEA 2000 Configuration ............................................................................................. 101
14.4. Configuring Multiple Tank Level Measurements (Raymarine) ..................................................... 101
14.5. Configuring Multiple Tank Level Measurements (Garmin) ......................................................... 102
14.6. Configuring Multiple Tank Level Measurements (Navico) .......................................................... 103
14.7. Configuring Multiple Tank Level Measurements (Furuno) .......................................................... 105
14.8. NMEA2000-out technical details ...................................................................................... 105
14.8.1. NMEA 2000 Glossary ........................................................................................ 105
14.8.2. NMEA 2000 Virtual-devices ................................................................................. 106
14.8.3. NMEA 2000 Classes and Functions ........................................................................ 106
14.8.4. NMEA 2000 Instances ....................................................................................... 106
14.8.5. NMEA 2000 Changing Instances ........................................................................... 107
14.8.6. PGN 60928 NAME Unique Identity Numbers ............................................................. 111
Cerbo GX Manual

15. RV-C Support ..................................................................................................................... 112
15.1. RV-C Introduction ....................................................................................................... 112
15.2. Limitations ............................................................................................................... 112
15.3. Supported Devices ...................................................................................................... 112
15.4. RV-C Configuration ..................................................................................................... 113
15.4.1. Configuration of RV-C out devices .......................................................................... 114
15.5. Garnet SeeLevel II 709-RVC & Victron GX device support ........................................................ 115
15.5.1. Wiring the Garnet SeeLevel II 709-RVC tank level sensor to a GX device ............................ 115
15.5.2. Installation and configuration ................................................................................ 115
16. Digital Inputs ..................................................................................................................... 116
16.1. Configuration ............................................................................................................ 116
16.2. Read-out of digital inputs via Modbus TCP .......................................................................... 117
17. GX - Generator auto start/stop ................................................................................................ 118
17.1. Generator auto start/stop introduction ................................................................................ 118
17.2. Wiring ..................................................................................................................... 118
17.3. Enabling the start/stop function ....................................................................................... 118
17.4. Generator start/stop menu ............................................................................................. 119
17.5. Settings menu ........................................................................................................... 119
17.5.1. Alarm when autostart function is disabled ................................................................. 120
17.5.2. Run time and service interval menu ........................................................................ 120
17.6. Conditions: User definable parameters that trigger an automatic generator start/stop ......................... 121
17.6.1. Stop generator when AC-input is available ................................................................ 121
17.6.2. Relays triggered by Battery SoC ............................................................................ 122
17.6.3. Relays triggered by Battery Current ........................................................................ 122
17.6.4. Relays triggered by Battery Voltage ........................................................................ 122
17.6.5. Relays triggered by AC load ................................................................................. 122
17.6.6. Relays triggered by Inverter High temperature ............................................................ 123
17.6.7. Relays triggered by Inverter overload ...................................................................... 123
17.6.8. Automatic periodic 'Test run' ................................................................................. 123
17.6.9. Manual Start Feature ......................................................................................... 123
17.6.10. Quiet hours ................................................................................................... 124
17.7. Troubleshooting ......................................................................................................... 125
18. Reset to factory defaults procedure ......................................................................................... 126
19. Troubleshooting ................................................................................................................. 127
19.1. Error Codes .............................................................................................................. 127
19.2. FAQ ....................................................................................................................... 128
19.2.1. Q1: I cannot switch my Multi/Quattro system on or off ................................................... 128
19.2.2. Q2: Do I need a BMV to see proper battery state of charge? ........................................... 129
19.2.3. Q3: I have no internet, where can I insert a SIM card? ................................................... 129
19.2.4. Q4: Can I connect both a GX Device and a VGR2/VER to a Multi/Inverter/Quattro? ................. 129
19.2.5. Q5: Can I connect multiple Cerbo GX to a Multi/Inverter/Quattro? ..................................... 129
19.2.6. Q6: I see incorrect current (amps) or power readings on my Cerbo GX ............................... 130
19.2.7. Q7: There is a menu entry named "Multi" instead of the VE.Bus product name ...................... 130
19.2.8. Q8: There is a menu entry named "Multi", while there is no Inverter, Multi or Quattro connected .. 130
19.2.9. Q9: When I type the IP address of the Cerbo GX into my browser, I see a web page
mentioning Hiawatha? ................................................................................................ 131
19.2.10. Q10: I have multiple Solar chargers MPPT 150/70 running in parallel. From which one will I
see the relay status in the Cerbo GX menu? ....................................................................... 131
19.2.11. Q11: How long should an automatic update take? ...................................................... 131
19.2.12. Q12: I have a VGR with IO Extender, how can I replace this with a Cerbo GX? .................... 131
19.2.13. Q13: Can I use Remote VEConfigure, as I was doing with the VGR2? ............................... 131
19.2.14. Q14: The Blue Power Panel could be powered through the VE.Net network, can I also do that
with a Cerbo GX? ...................................................................................................... 131
19.2.15. Q15: What type of networking is used by the Cerbo GX (TCP and UDP ports)? .................... 131
19.2.16. Q16: What is the functionality behind the menu item Remote support (SSH) in the Ethernet
menu? ................................................................................................................... 132
19.2.17. Q17: I don’t see support for VE.Net products in the list, is that still coming? ......................... 132
19.2.18. Q18: What is the data usage of the Cerbo GX? ......................................................... 132
19.2.19. Q19: How many AC Current Sensors can I connect in one VE.Bus system? ........................ 132
19.2.20. Q20: Issues with Multi not starting when Cerbo GX is connected / Caution when powering the
Cerbo GX from the AC-out terminal of a VE.Bus Inverter, Multi or Quattro ..................................... 132
19.2.21. Q21: I love Linux, programming, Victron and the Cerbo GX. Can I do more? ....................... 133
Cerbo GX Manual

19.2.22. Q22: How do I change the logo ............................................................................ 133
19.2.23. Q23: Multi restarts all the time (after every 10sec) ...................................................... 133
19.2.24. Q24: What is Error #42? .................................................................................... 133
19.2.25. Q25: My GX device reboots itself. What is causing this behavior? .................................... 133
19.2.26. GPL Note .................................................................................................... 134
20. Technical specifications ........................................................................................................ 135
20.1. Technical specifications ................................................................................................ 135
21. Appendix .......................................................................................................................... 137
21.1. RV-C ...................................................................................................................... 137
21.1.1. Supported DGNs .............................................................................................. 137
21.1.2. RV-C out ....................................................................................................... 137
21.1.3. DGN 60928 Unique Identity Numbers ...................................................................... 143
21.1.4. RV-C in ......................................................................................................... 143
21.1.5. Device Classes ............................................................................................... 143
21.1.6. Instance Translation .......................................................................................... 144
21.1.7. RV-C Fault and Error Handling .............................................................................. 144
21.1.8. RV-C Device Priority .......................................................................................... 145
21.2. Cerbo GX Dimensions .................................................................................................. 146
21.3. Modbus holding registers for the ComAp CM-Ethernet module ................................................... 146
Cerbo GX Manual

1. Safety instructions
SAVE THESE INSTRUCTIONS – This manual contains important instructions that shall be followed
during installation, setup, operation and maintenance.
• Please read this manual carefully before the product is installed and put into use
• Make sure you have the latest version of the manual. The most recent version can be downloaded from the product page.
• Install the product in a heatproof environment. Ensure therefore that there are no chemicals, plastic parts, curtains or other
textiles, etc. in the immediate vicinity of the equipment.
• Ensure that the equipment is used under the correct operating conditions. Never operate it in a wet environment.
• Never use the product at sites where gas or dust explosions could occur
• This device is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or instruction.
Cerbo GX Manual
Page 1 Safety instructions

2. Introduction
2.1. What is the Cerbo GX?
The Cerbo GX is a powerful member of the GX product family with extensive communication ports and the option to add a
touchscreen display (GX Touch 50 & GX Touch 70) for extended functionality.
GX products are Victron's state-of-the-art monitoring and control solution that run our Venus OS operating system. It sits at the
heart of your energy installation. All the other system-components such as inverter/chargers, solar chargers, and batteries are
connected to it. The Cerbo GX ensures that they all work in harmony.
To monitor and control your system, you can simply access it remotely via our Victron Remote Management (VRM) portal from
anywhere in the world using an internet connection. Or access it directly, using the optional GX Touch screen, a web browser, a
Multi-Functional Display (MFD) [87] or our VictronConnect app.
The Remote Console [42] serves as the primary control center for monitoring, controlling and managing your system.
The Cerbo GX also provides VRM: Remote firmware updates and allows settings to be changed remotely.
Note that all the information in this manual refers to the latest software. You can check your device has the latest version in
the firmware menu (see the Firmware updates [62] chapter) when the GX device is connected to the internet. For installations
without internet, you can find the latest version in Victron Professional.
2.2. What's in the box?
Cerbo GX
Power cable with inline fuse and M8 terminal eyes for
battery or DC busbar-attachment.
VE.Can terminators (2 pcs)
Terminal blocks for all the connectors on each side: 3x
4-pin, 2x 3-pin, 1x 2-pin
Please also watch this video for an unboxing and overview of the interfaces:
Cerbo GX Manual
Page 2 Introduction

3. Installation
3.1. Cerbo GX Overview of connections
Communication ports IO Other
3x VE.Direct 4x Digital Inputs MicroSD Card Slot
(max. 32GB)
1x VE.Can (non-isolated) and 1x BMS-Can 4x Resistive Tank Level Inputs Power in port (8 -
70VDC)
1x VE.Bus 4x Temperature Sense Inputs HDMI port
Ethernet
2x Programmable Relay (NO, COM, NC -
current limit: DC up to 30VDC: 6A / DC up to
70VDC: 1A / AC: 6A, 125VAC
WiFi 2.4GHz (802.11 b/g/n) incl. WiFi Access
Point
Bluetooth Smart
2x USB Host ports + 1x USB Power only port
Cerbo GX Manual
Page 3 Installation

3.2. Mounting options and accessories
The following mounting options and accessories are available for purchase:
•GX Touch 50 & GX Touch 70 displays
•GX Touch wall mount available in 5" and 7"
•GX Touch 50 adapter for CCGX cut-out
•DIN35 rail mount adapter
•Temperature sensor Quattro, MultiPlus and GX Device
Please watch this video for all mounting options:
Cerbo GX Manual
Page 4 Installation

3.3. Powering the Cerbo GX
The device is powered by using the Power in V+ connector. It accepts 8 to 70V DC. The device will not power itself from any of
the other connections (eg network). The supplied DC power cable includes an inline 3.15A slow blow fuse.
If the DC voltage exceeds 60V, the Cerbo GX is classified as a “built-in product”. Installation should be in such a way the user
cannot touch the terminals.
When the Cerbo GX is used in an installation with a VE.Bus BMS, connect the Power in V+ on the Cerbo GX to the terminal
labelled 'Load disconnect' on the VE.Bus BMS. Connect both negative leads to the negative stub of a common battery.
A cautionary word about powering from the AC-out terminal of a VE.Bus Inverter, Multi or Quattro:
If you power the Cerbo GX from an AC adaptor connected to the AC-out port of any VE.Bus product (Inverter, Multi or Quattro),
then a deadlock will occur after the VE.Bus products are powered-down for any reason (after any operational fault or during
a black start). The VE.Bus devices will not boot-up until the Cerbo GX has power …but the Cerbo GX will not boot-up until it
has power. This deadlock can be rectified by briefly unplugging the Cerbo GX VE.Bus cable at which point you will observe the
VE.Bus products will immediately begin to boot-up.
Or a modification can be done to the RJ45 cabling. See FAQ Q20 [132] for more information about this.
Note that both with or without above modification, powering the monitoring equipment with the AC-out of an inverter/charger (of
course) has the disadvantage that all monitoring is shut down when there is a problem that causes the inverter/charger to shut
down. Examples are inverter overload, high temperature or low battery voltage. It is therefore recommended to power the GX
device from the battery.
Isolation
Because the Cerbo GX is connected to many different products, please ensure that proper care is taken with isolation to prevent
ground loops. In 99% of installations this will not be a problem.
• VE.Bus ports are isolated
• VE.Direct ports are isolated
• VE.Can ports are not isolated.
• USB ports are not isolated. Connecting a WiFi Dongle or GPS Dongle will not create a problem as it is not connected
to another power supply. Even though there will be ground loop when you mount a separately-powered USB hub, during
extensive testing we have not found that it caused any issues.
• The Ethernet port is isolated, except for the shield: use unshielded UTP cables for the Ethernet network.
Extending USB ports by use of a self-powered USB hub
Although the number of USB ports can be extended by using a hub, there is a limit to the amount of power that the onboard USB
port can provide. When extending the number of USB ports, we recommend you always use powered USB hubs. And to minimize
the chance of issues, be sure to use good-quality USB hubs. As Victron also offers a VE.Direct to USB adapter, you can use this
arrangement to increase the number of VE.Direct devices you can connect to your system, please see this document for the limit
of how many devices can be attached to various different GX devices.
Cerbo GX Manual
Page 5 Installation

3.4. GX Touch 50 & GX Touch 70
230 W
67
814 W
240 W
230 W
67
814 W
240 W
230 W
67
814 W
240 W
The GX Touch 50 & GX Touch 70 are display accessories for our Cerbo GX. The five inch and seven inch touchscreen displays
give an instant overview of your system and allow to adjust settings in the blink of an eye. Their super-slim waterproof design,
top-mountable setup and simple installation bring a lot of flexibility when creating a crisp and clean dashboard.
No configuration is required. When the screen is connected, the device will automatically display the GX overview and menu
controls.
Display options are available in the Settings → Display & Language menu. You can set a time before the display turns off, or
enable adaptive brightness.
The screen is controlled by a finger tip. You can swipe to scroll up and down through the menus, and tap to make selections. Text
and number input is entered via an onscreen keyboard.
Mounting options
It is possible to mount the GX Touch in several different ways:
• using the included bracket frames
• using the optional GX Touch Wall Mount
• or the optional GX Touch 50 adapter for CCGX cut-out (GX Touch 50 only)
• The supplied (from serial number HQ2242, can be ordered separately - see the datasheet for details) protection cover prevents
damage from UV light during prolonged exposure to the sun
Connecting the GX Touch 50 or GX Touch 70
Note that the GX Touch must be connected to the Cerbo GX before powering it on. The best way to do this is
to unplug the power connector from the Cerbo GX prior to installation.
The touchscreen is connected to the device with a single cable, which has an HDMI connector and a USB connector at one end.
1. Mount the touchscreen in a convenient location
2. Connect the HDMI connector into the HDMI port of the Cerbo GX.
3. Connect the USB connector to the USB port that is right next to the HDMI port (this USB port is only used for the power
supply of the touchscreen and has no other function)
4. Plug the power cable into the Power in port via its 2-pin connector block and power the Cerbo up. After the Cerbo boots
up, the Remote Console appears on the touchscreen. Familiarise yourself with the operation of the touch display and then
configure the touchscreen settings.
Cerbo GX Manual
Page 6 Installation

+VDC
2 3
4
Cerbo GX Manual
Page 7 Installation

3.5. Deactivating touch input control
In order to restrict access to the GX system, it is possible to disable touch input control for the attached GX Touch 50 or 70
touchscreen. This allows mounting the GX Touch where it is visible by the operator of the system; and at the same time prevent
them from using that to elevate their access level.
Note that this feature only disables touch/mouse control. On the Remote Console you are still able to control the device with
keyboard input.
There are two ways to disable the touch function of the display:
1. Using a momentary-push button wired to one of the digital inputs
2. By using an external USB keyboard connected to the Cerbo GX; The touch function can then be toggled on and off by
pressing the Pause/Break key.
If you want to use this function, make sure that the USB ports and the USB keyboard are not accessible.
Deactivating touch input control using a momentary-push button
1. Go to Settings → IO → Digital inputs → Digital input [number of the digital input]
2. Scroll down the submenu until you see the Touch input control option
3. Press the spacebar or click/tap to enable Touch input control
4. Wire a momentary-push button between the appropriate top and bottom pins of the associated digital input
Pushing the button once will activate (disable) touch. Touch entries are no longer possible. The display switches off after the
time set under Display off time (see menu Display & Language). Touching the screen activates the last page set. Pushing the
button again will deactivate (enable) touch. Note that this pulls the gpio pin to ground. Do not apply voltage to the gpio pins.
Deactivating touch input control using an external USB keyboard
1. Connect an external USB keyboard to one of the USB ports on the Cerbo GX
2. Press the Pause/Break key to toggle touch input control on/off.
For keyboards without Pause/Break key use one of the substitute key combinations mentioned in this Wikipedia article.
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Page 8 Installation

3.6. Relay connections
The Cerbo GX has potential-free Normally Open (NO) and Normally Closed (NC) relay functionality. The function of the relays can
be set via the GX menu, Settings → Relay → Function.
Relay 1 is of particular importance because, in addition to manual and temperature [60]-related triggering (also applies to relay
2), it can also be used as an alarm [48], generator start/stop [118] or tank pump [48] relay.
If the relay function is configured as an Alarm relay, it is possible to reverse the polarity of the relay via an additional menu. The
default setting is Normally open. Please note that reversing the polarity to Normally closed will result in a slightly higher current
consumption of the GX device.
Observe the voltage and current limits of the relays, which are: DC up to 30VDC: 6A - DC up to 70VDC: 1A - AC: 6A, 125VAC
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4. Connecting Victron products
4.1. VE.Bus Multis/Quattros/Inverters
In order to keep this document short we are going to refer to all Multis, Quattros and Inverters as VE.Bus products.
The earliest version of VE.Bus devices that can be connected using the Products: Product_Acronym is 19xx111, where the first 2
digits represent the microprocessor and the last 3 digits represent the VE.Bus firmware version.
VE.Bus device microprocessor GX device support
18xxxxxx No
19xx111 Yes
20xx111 Yes
26xxxxx Yes
27xxxxx Yes
Note that for Multis, Quattros and EasySolars, it is not possible to use the Remote On/Off (header on the VE.Bus control PCB) in
combination with a Cerbo GX. There should be a wire between the left and middle terminal, as it is when shipped from the factory.
In case a wired switch that disables the system is required, use the Safety Switch Assistant instead.
This limitation does not apply to the next generation of VE.Bus inverter/chargers: when using a MultiPlus-II, Quattro-II or
EasySolar-II, the Remote on/off terminal header *can* be used in combination with Cerbo GX.
Before connecting any VE.Bus product, be very careful not to confuse the GX device VE.Bus ports
with the Ethernet or VE.Can/BMS-Can port!
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 Cerbo GX. 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 Cerbo GX. Use a standard RJ45
UTP cable, see our pricelist.
VE.Bus systems with Lithium batteries and a VE.Bus BMS
• The following only applies to the VE.Bus BMS v1, not to be confused with its successor VE.Bus BMS V2.
• Connect the Cerbo GX 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 Cerbo GX
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 Cerbo GX in case of a low battery, make sure the Cerbo GX is powered via the VE.Bus
BMS: connect Power in V+ on the Cerbo GX to Load disconnect on the VE.Bus BMS. And connect both negative leads to the
negative stub of a common Battery.
Combining the Cerbo GX with a Digital Multi Control
It is possible to connect both a Cerbo GX 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 Cerbo GX 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 Cerbo GX will not be possible.
Connecting multiple VE.Bus systems to a single Cerbo GX
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Page 10 Connecting Victron products

Only one VE.Bus system can be connected to the VE.Bus ports on the back of the Cerbo GX. The professional way to to monitor
more systems is to add a second Cerbo GX
If you do require to connect more than one system to the same Cerbo GX, 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.
• Only the Multi/Quattro (which can be a single device, or multiple together configured for three-/split-phase as well as parallel)
connected to the VE.Bus port will be controlled via DVCC. Additional systems, connected to the GX device using an MK3-USB,
are not controlled by DVCC and will charge and discharge according to the configuration made in those units.
• 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.
Alternatively the VE.Bus to VE.Can interface (ASS030520105) can be used. Add one for each additional system. Note that we
advise against it; this interface is a deprecated product. Make sure that the VE.Can network is terminated and powered. For
powering the VE.Can network, see Q17 in our data communication whitepaper.
Additional features provided by a GX device to VE.Bus products
An internet connected GX device allows for remote configuration via the VRM Portal. Please read the Remote VE.Configure
manual for more information, system requirements and specific steps to access this feature.
The internet connected GX device also allows remotely updating the firmware of VE.Bus products. For details see the Remote
VE.Bus firmware updates manual.
4.2. AC load monitoring
All energy meter types can be assigned the AC meter role. This is done in Settings → Energy meters → [your_energy_meter]
→ Role menu where you choose between Grid, PV Inverter, Generator and AC meter. With AC meter selected, the load will be
shown in the Device list and on VRM in the advanced widgets.
Please note that such metered loads are not used in any calculations, just monitoring.
4.3. Battery Monitor SmartShunt, BMV-700 series; and MPPTs with a VE.Direct
port
Direct connection via a VE.Direct cable is limited to the number of VE.Direct ports on the device (see Overview of
Connections [3]). There are two types of VE.Direct cables available:
1. Straight VE.Direct cables, ASS030530xxx
2. VE.Direct cables with an angled connector on one end. These are designed to minimise the required depth behind a panel,
ASS030531xxx
VE.Direct cables have a maximum length of 10 metres. It is not possible to extend them. If longer lengths are required, use a
VE.Direct to USB interface with an active USB extension cable.
It is also possible to use the VE.Direct to VE.Can interface, but note that this only works for BMV-700 and BMV-702. Not for the
BMV-712, MPPT solar chargers and Inverters with a VE.Direct port. See next paragraph for more information on that VE.Can
interface.
Connecting more VE.Direct devices to your Cerbo GX than number of VE.Direct Ports
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Page 11 Connecting Victron products

First of all, note that the maximum of VE.Direct devices that can be connected is GX device specific, and constrained by the CPU
power. It may also be reduced for very complex systems, such as many AC PV inverters or synchronised inverter chargers, etc.
So always allow some additional headroom in the design. How they are connected, whether via VE.Direct, via USB or USB hub,
does not change this maximum. See the Victron GX product range for the maximum limit on all GX devices.
For the Cerbo GX, this limit is 15.
Options to connect more VE.Direct products than available VE.Direct ports:
1. Use the VE.Direct to USB interface. The Cerbo GX has built-in USB ports. Use a USB-hub when additional USB ports are
required.
2. (Only!) the BMV-700 and BMV-702 can also be connected using the VE.Direct to VE.Can interface (deprecated). Note that
the BMV-712, MPPTs and VE.Direct Inverters cannot be connected using this CAN-bus interface as it does not translate
their data into CAN-bus messages. When using the VE.Direct to VE.Can interface, make sure that the VE.Can network is
terminated, and also powered. For powering the VE.Can network, see Q17 in our data communication whitepaper. Lastly,
note that this CAN-bus interface is deprecated.
Notes about older VE.Direct MPPTs
• An MPPT 70/15 needs to be from year/week 1308 or later. Earlier 70/15s are not compatible with the Cerbo GX , and
unfortunately upgrading the MPPT firmware will not help. To find the year/week number of your model, look for the serial
number which is printed on a label on its back. For example number HQ1309DER4F means 2013, week 09.
4.3.1. DC load monitor mode
If you wish to use a SmartShunt or BMV-712 to monitor individual DC circuits, rather than as a whole-of-system battery monitor,
you can change the Monitor mode setting from Battery Monitor to DC Energy Meter in VictronConnect.
If DC meter is selected, you can then select the following types (also in VictronConnect):
Solar charger, Wind charger, Shaft generator, Alternator, Fuel cell, Water generator, DC-DC charger, AC charger, Generic source,
Generic load, Electric drive, Fridge, Water pump, Bilge pump, DC system, Inverter, Water heater
Once connected to the Cerbo GX, the type and the amps and power of the DC load is shown in the user interfaces and available
on the VRM Portal.
When configured as type “DC System”, the Cerbo GX does more than just recording and visualisation:
1. The power shown in the DC system box is the sum of power reported by all SmartShunts configured as such. Allowing
multiple meters is done to accommodate for example a catamaran, so you can measure the DC Systems on Port hull and on
Starboard hull.
2. The DC system current is being compensated for when setting DVCC charge current limits to Multis, Quattros and Solar
Chargers. For example when a load of 50A is being measured, and CCL by the battery is 25A, the limit given to the Multis &
Solar Chargers is 75A. An improvement for systems with significant DC loads such as Yachts, Coaches and RVs.
Notes and limitations:
• This feature is available for SmartShunts and BMV-712. Not for BMV-700 or BMV-702.
• Setting the meter mode is done with VictronConnect, in the BMV/SmartShunt itself. For details see the BMV-712 or SmartShunt
product manual on the Battery Monitor product page.
• The NMEA2000-out feature does not support these new types, for example when using a SmartShunt to measure output of an
alternator, that data is not made available on NMEA 2000.
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Page 12 Connecting Victron products

4.4. VE.Can Devices
To connect a product with a VE.Can port, use a standard RJ45 UTP cable (available with straight and elbow connectors).
Don't forget to terminate the VE.Can network at both ends using a VE.Can terminator. A bag with two terminators is supplied with
each VE.Can product. They are also available separately.
Other notes:
1. In order to work with the Cerbo GX, an MPPT 150/70 must be running firmware v2.00 or newer.
2. You can combine a Skylla-i control panel with a Cerbo GX.
3. You can combine a Ion Control panel with a Cerbo GX.
4. All VE.Can devices power the VE.Can network, so it won't be necessary to power the VE.Can network separately in these
circumstances. All the protocol converters, for example the VE.Bus to VE.Can interface and the BMV to VE.Can interface, do
not power the VE.Can network.
The following VE.Can products also support VictronConnect-Remote (VC-R) – Configuration and monitoring via VRM. Please
read the VictronConnect manual for further details.
VE.Can product VC-R Remarks
Lynx Shunt VE.Can Yes -
Lynx Smart BMS Yes -
Inverter RS, Multi RS and MPPT RS Yes They also have VE.Direct but must be connected via VE.Can for
VC-R
Blue/Smart Solar VE.Can MPPTs [1] Yes Tr and MC4 models
Skylla-i and Skylla-IP44/-IP65 Yes Requires firmware v1.11
[1] All VE.Can solar chargers except the very old (big rectangular case with display) BlueSolar MPPT VE.Can 150/70 and
150/85
4.5. VE.Can and BMS-Can Interfaces
The Cerbo GX has two CANbus interfaces. They are independent from a data and connected device perspective. They are not
electrically isolated. One is labelled VE.Can, the other is labeled BMS-Can, with a screen print on the top side of the unit when
it is facing towards you. These each correspond to the VE.Can port and BMS-Can port listed in the services menu of the GX
remote console.
VE.Can is intended to be used for Victron (and Victron compatible) VE.Can products, such as the VE.Can MPPTs, Skylla-IP65,
Lynx Shunt VE.Can and Lynx Smart BMS. You can string these VE.Can 250 kbit/s devices together along this bus. It must be
terminated at both ends with the included VE.Can terminators.
BMS-Can is intended to be used with compatible managed battery systems, such as Pylontech, BYD, Freedomwon and many
more. These must be terminated at the Victron end (on the Cerbo GX) with the included terminator (same one as used with
VE.Can). It may or may not be necessary to terminate at the managed battery, BMS or BMU - this will be documented in the
specific Victron Compatible managed battery instructions for that battery. Some batteries automatically terminate.
VE.Can and BMS-Can cannot be combined on the same bus. If you wish to use both, they require a GX device with two separate
buses, each with 2 RJ45 ports - 4 CANbus ports in total.
It is not possible to set the BMS-Can port to anything other than 500 kbit/s or disabled.
You can set the VE.Can port from 250 kbit/s to be 500 kbit/s (or one of several other CANbus speeds for other CANbus
applications).
By default; VE.Can is set to 250 kbit/s & BMS-Can (if present) to 500 kbit/s.
Other types of Batteries and BMS may claim compatibility with BMS-Can or VE.Can, but if they are not on the battery
compatibility list, then they have not been tested and confirmed to work by Victron.
One extra element of possible confusion is that there are some BMS products on the market that use a CANbus-BMS profile
at 250 kbit/s. These BMS products can only be connected to the VE.Can port, and it must also be set to match this (VE.Can &
CAN-bus BMS (250 kbit/s)) in the services menu for the VE.Can port. They can be used in the same cable daisy chain as other
Victron VE.Can devices.
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Page 13 Connecting Victron products

4.6. Inverter RS, Multi RS and MPPT RS
The Inverter RS, Inverter RS Solar and Multi RS have both VE.Direct and VE.Can interfaces. For these specific products, it
is only possible to connect a GX device via the VE.Can interface. It is not possible to connect a GX device via the VE.Direct
interface.
The VE.Direct interface on these specific products is only used for connection of a VE.Direct to USB adapter for programming.
This restriction does not apply to the MPPT RS, which can be connected to a GX device via either VE.Direct or VE.Can.
4.7. BMV-600 series
• Connect the BMV-600 using the VE.Direct to BMV-60xS cable. (ASS0305322xx).
4.8. DC Link Box
• Connect the DC Link Box with the supplied RJ12 cable. Then connect the BMV-700 to the Cerbo GX.
4.9. VE.Can Resistive Tank Sender Adapter
See the VE.Can resistive tank sender adapter product page for details about the adapter.
• To connect a product with a VE.Can port, use a standard RJ45 UTP cable
• Don't forget to terminate the VE.Can network on both ends using a VE.Can terminator. A bag with two terminators is supplied
with each VE.Can product. They are also available separately (ASS030700000). (Available with straight or elbow connectors).
• Make sure that the CAN-bus is powered, see the Power chapter in the Tank Sender Adapter manual for details.
4.10. Connecting a GX Tank 140
The GX Tank 140 is an accessory for our range of GX system monitoring products.
It takes readings from up to four tank level sensors.
Tank levels can be read-out locally in the system, as well remotely through our VRM Portal.
The GX Tank 140 is compatible with current senders (4 to 20mA) as well as voltage senders (0 to 10V). The connection to the GX
device is via USB, which is also how the GX Tank is powered: no additional power wires required.
To make wiring the tank sender as simple as possible, two of the four inputs provide a 24V power supply, to power the sender.
Using the other two channels requires an external power supply, and there is a power in terminal together with fused outputs to
facilitate that.
Upper and lower limits are configurable, to allow using senders that provide only part of the scale, for example 0 to 5V.
For marine applications, the GX device can transmit these tank levels on the NMEA 2000 network to be picked up by other
displays such as an MFD.
The GX Tank 140 product page links to the complete documentation of this product.
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Page 14 Connecting Victron products