Cerbo GX Installation
Table Of Contents
- Cerbo GX Manual
- Table of Contents
- 1. Introduction
- 2. Installation
- 2.1. Overview of connections
- 2.2. Power
- 2.3. Connecting Victron products
- 2.3.1. Multis/Quattros/Inverters (VE.Bus products)
- 2.3.2. Battery Monitor BMV-700 series; and MPPTs with a VE.Direct port
- 2.3.3. Skylla-i, Lynx Shunt VE.Can, Lynx Ion + Shunt and MPPTs with a VE.Can port
- 2.3.4. VE.Can and BMS-Can Interfaces
- 2.3.5. BMV-600 series
- 2.3.6. DC Link box
- 2.3.7. VE.Can Resistive Tank Sender Adapter
- 2.4. Connecting a PV Inverter
- 2.5. Connecting a USB GPS
- 2.6. Connecting a Fischer Panda Generator
- 2.7. Connecting Tank Level Sensors
- 2.8. Connecting third-party NMEA 2000 tank senders
- 2.9. Connecting Temperature Sensors
- 2.10. Connecting IMT Solar Irradiance, Temperature and Wind Speed Sensors
- 3. Internet connectivity
- 3.1. Ethernet LAN port
- 3.2. Wi-Fi
- 3.3. GX GSM
- 3.4. Mobile (cellular) network using a 3G or 4G router
- 3.5. USB tethering using a mobile phone
- 3.6. IP Configuration
- 3.7. Connecting both Ethernet and Wi-Fi (failover)
- 3.8. Minimize internet traffic
- 3.9. More information about setting up an internet connection and VRM
- 4. Accessing the GX device
- 5. Configuration
- 6. GX - How to update firmware
- 7. VE.Bus Inverter/charger monitoring
- 8. DVCC - Distributed Voltage and Current Control
- 9. VRM Portal
- 10. Marine MFD integration by App
- 11. Marine MFD integration by NMEA2000
- 12. Digital Inputs
- 13. GX - Generator auto start/stop
- 14. Error Codes
- 15. FAQ
- 15.1. Q1: I cannot switch my Multi/Quattro system on or off
- 15.2. Q2: Do I need a BMV to see proper battery state of charge?
- 15.3. Q3: I have no internet, where can I insert a sim-card?
- 15.4. Q4: Can I connect both a GX Device and a VGR2/VER to a Multi/Inverter/Quattro?
- 15.5. Q5: Can I connect multiple Cerbo GX to a Multi/Inverter/Quattro?
- 15.6. Q6: I see incorrect current (amps) or power readings on my Cerbo GX
- 15.7. Q7: There is a menu entry named "Multi" instead of the VE.Bus product name
- 15.8. Q8: There is a menu entry named "Multi", while there is no Inverter, Multi or Quattro connected
- 15.9. Q9: When I type the ip-address of the Cerbo GX into my browser, I see a web page mentioning Hiawatha?
- 15.10. 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?
- 15.11. Q11: How long should an automatic update take?
- 15.12. Q12: I have a VGR with IO Extender, how can I replace this with a Cerbo GX?
- 15.13. Q13: Can I use Remote VEConfigure, as I was doing with the VGR2?
- 15.14. Q14: The Blue Power Panel could be powered through the VE.Net network, can I also do that with a Cerbo GX?
- 15.15. Q15: What type of networking is used by the Cerbo GX (TCP and UDP ports)?
- 15.16. Q16: What is the functionality behind the menu item Remote support (SSH), in the Ethernet menu?
- 15.17. Q17: I don’t see support for VE.Net products in the list, is that still coming?
- 15.18. Q18: What is the data usage of the Cerbo GX?
- 15.19. Q19: How many AC Current Sensors can I connect in one VE.Bus system?
- 15.20. 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
- 15.21. Q21: I love Linux, programming, Victron and the Cerbo GX. Can I do more?
- 15.22. Q22: How do I change the logo
- 15.23. Q23: Multi restarts all the time (after every 10sec)
- 15.24. Q24: What is Error #42?
- 15.25. GPL Note
- 16. More information
Check 'Last contact'. If this shows dashes, the GX device has not been able to contact the VRM Portal since power up. If it shows
a time, but still an error is shown, then the GX device has been able to send data, but has since lost contact.
The 'Buffered items' indicates the number of logs that it has stored to send later. If this is larger than 0, it means that the Cerbo
GX can not connect to the VRM Portal. All data is sent using the First in First out principle: the VRM Portal will only show the most
up to date information after all old data has been sent.
9.5. Analysing data offline, without VRM
In certain cases, for example for very remote sites where there is no internet available, it can be useful to be able to analyse the
data without first having to upload it to the VRM Portal.
1. Install VictronConnect on a Windows or Apple laptop
2. Insert the storage device containing the log file(s)In Victron
3. Connect, use the GX Log Converter feature to convert them to Excel sheets.
9.6. Remote Console on VRM - Trouble shooting
Follow these steps to trouble shoot Remote Console on VRM
1. Make sure that Logging to the VRM portal works, see chapter 5.4. Without this; Remote Console on VRM will not work.
2. After enabling the Remote Console feature, make sure to set (or disable) the password.
3. Also make sure to restart the Cerbo GX after setting (or disabling) the password.
4. Make sure to update the Cerbo GX to the latest firmware version. The last stability improvement for Remote Console was
made in version v2.30.
5. After the restart, check the Remote Console on VRM status shows online or a port number. In case it says offline, or port
number 0, the Cerbo GX was unable to connect to the Remote Console server. This is normally caused by a (company)
firewall, blocking the connection. The solution is then to configure an exception rule in the firewall.
6. -Verify that your web browser, on which you're using VRM, can access both of below URLs. Click both of the links, to check
them. Note that seeing an Error means that all is OK. The good error is 'Error response, Error code 405, Method Not Allowed'.
If you get a timeout or another (browser) error, there may be a firewall blocking the connection. https://
vncrelay.victronenergy.com & https://vncrelay2.victronenergy.com/
Technical background
To have Remote Console on VRM working, your web browser and the GX Device need to have a connection between them. This
connection is designed such that it doesn't need any special configuration or opening up of firewalls in almost all situations. The
0.1% of situations where it doesn't work out of the box are, for example, large corporate networks with special security, or long
range expensive satellite or radio supported networks, such as seen in rural areas of Africa and other remote areas.
When Remote Console on VRM is enabled, the GX Device will open and maintain a connection to any of the servers pointed to
by supporthosts.victronenergy.com. Which currently resolves to multiple IP addresses (84.22.108.49, 84.22.107.120,
3.25.10.245, 13.244.154.199 or 35.165.124.40, depending on where you are), and likely more in the future. The technology used
is SSH, and it will try to connect using port 22, 80 and 443, only one of them needs to work. The reason for it to try all three is that
on most networks at least one of them will be allowed by the local firewall.
Once connected to one the the supporthost servers, that reverse SSH tunnel is waiting to be connected from someone needing
the connection. Which can be your browser, or a Victron engineer since this same technology is used for the Remote Support
functionality; for more information see above.
Cerbo GX Manual
Page 51 VRM Portal