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Venus GX manual

In many ways the Venus GX and the Color Control GX are the same device. They share a lot of hardware, and they run on identical software - our 'Venus OS' - therefore firmware numbering is the same; and new version releases always apply to both devices at the same time.

Venus GX/CCGX comparison table

Use the Venus GX / CCGX comparison table in Paragraph 4. below below to see the similarities and differences between the two devices at-a-glance.

(This manual refers to the latest firmware version. A device connected to the internet will perform new-version updates automatically. Check the latest firmware version here.)

1. What's in the Box?

  • Venus GX
  • VE.Can terminator (2 pcs).
  • Power cable with inline fuse and M8 terminal eyes for battery- or DC busbar-attachment.
  • Terminal Blocks for all the connectors on each side.
  • Label showing wifi key and product details.

1.1 Overview of connections

2. Accessing the device

Because the Venus GX has no visual display or buttons, it is accessed for setting-up and monitoring by using the 'Remote Console' feature. You can do this through VRM, using the built-in WiFi Access Point, or by using the local LAN/WiFi network.

2.1 Accessing 'Remote Console' via VRM

Connect the Venus GX to the internet by plugging it into a working Ethernet network which as a DHCP server (most networks do). It will immediately connect to VRM.

Go to and follow the instructions to add the device. More information about this is available in the VRM Manual.

When you've done that, click the 'Remote Console' link to open the window, like this:

More information about 'Remote Console' on VRM is explained here.

2.2 Accessing 'Remote Console' via the built-in WiFi Access Point


  1. Make sure you are no further than a few metres away from the Venus GX
  2. Go to the WiFi settings on your phone / tablet / laptop.
  3. After searching, it will show up in the list:
  4. Connect to WiFi using the 'WiFi key' which you will find printed on the side of the box …and also on a card in the plastic bag - which you should keep in a safe place.
  5. Once connected, navigate to

Note that for added security it is possible to disable the WiFi Access Point. See Settings → Wi-Fi → Create access point.

Caution: Once WiFi Access is disabled the only way to get it back is by using 'Remote Console' on VRM -which requires a working internet connection; or via 'Remote Console' on LAN which requires a working network connection (but no internet).

2.3 Finding the IP address

If you've accidentally disabled Remote Console on VRM, the only way to re-enable it is via Remote Console on LAN. And to do that you'll need to find the IP address of the Venus GX. There are several ways of finding it:

IP Address on VRM

On VRM, you'll find the IP address on the Device List page of the installation. Note that this does require the Venus GX to be connected to the internet.

Network (on Microsoft Windows)

In a local network, for example at home, you can also find the Venus GX in the Windows 'Network' overview:

Double-clicking the icon will open up Remote Console on LAN.

Open the 'Properties' window to see the IP address.

This uses Universal plug-and-play broadcast technology.

3. LEDs and Push-button - explanation

3.1 LEDs


On the side of the Venus GX, there is an LED. During power-up it it goes through these states:

  • Stage 1: Both green and red illuminate briefly and faintly (it's hard to see the green) for approximately 1 second.
  • Stage 2: Red illuminates for approximately 1 second.
  • Stage 3: Green illuminates for approximately 0.5 seconds.
  • Stage 4: Both green and red illuminate briefly and faintly (it's hard to see the green) for approximately 1 second.

After that the LED will be blinking green continually.

Factory re-install

During a forced factory re-install - a very uncommon operation - the LED has these definitions:

  • Off: No action is being taken.
  • Red blinking: Re-install in progress.
  • Green illuminated: Re-install complete.
  • Red illuminated: Error.

3.2 Small button located to the right of the green 14-Terminal Connector Block

This button has no function allocated at present.

4. Digital Inputs

The Venus GX has five digital inputs. The channels are accessible via the RJ-12 socket on the side. This is available for self-wiring by the user/installer.

4.1. Hardware implementation

The inputs are non-isolated. They operate at 3V3 levels, and can withstand up to 5V input. Each input has an internal 10k pull-up resistor to 3V3. We recommend wiring it to a potential free relay or otherwise open collector/optocoupler output.

RJ12 pinout Input
pin1 input1
pin2 input2
pin3 input3
pin4 input4
pin5 gnd
pin6 input5

4.2. Software implementation

Each of the digital inputs can be configured as a pulse meter, or as one of a number of predefined sensors that can also be configured as alarms.

The possible configurable functions are:

Function States
Pulse meter N/A
Door alarm Open/Closed
Bilge pump On/Off
Bilge alarm Ok/Alarm
Burglar alarm Ok/Alarm
Smoke alarm Ok/Alarm
Fire alarm Ok/Alarm
CO2 alarm Ok/Alarm
Generator Running/Stopped

The function of each input can be configured in the GUI under Settings → I/O → Digital Inputs.

Once the input is configured for its intended purpose, it will show up with other devices.

Other parameters related to that function can be configured by entering the device menu and selecting Setup. For pulse meters, you can configure the unit, the multiplier (the volume represented by each pulse) and reset the counter.

For other sensors and alarms, you can decide whether the input should be treated as an alarm condition, and whether the sense should be inverted. If a logical low input (0V on the input) represents a positive condition, you should configure the input as inverted.

4.3. ModbusTCP

The values/states of the digital inputs are available on ModbusTCP. For more details about this, please download a copy of the document “Modbus-TCP register list” from our website.

5. How does the VenusGX compare with the CCGX?

This section explains all the differences between the two devices.

If you are familiar with the CCGX you will see at a glance how it compares to the Venus GX.

User interface CCGX Venus GX
LCD Display & 7 buttons yes no
Remote Console yes yes
Victron comm. ports CCGX Venus GX
VE.Direct 2 dedicated ports - isolated (1)
VE.Can 2 paralleled RJ45 sockets – isolated
VE.Bus 2 paralleled RJ45 sockets – isolated
Non Victron-products CCGX Venus GX
Canbus-BMS batteries Many battery brands. See here for details
Fronius PV Inverters See here for details
Communication CCGX Venus GX
USB 2 USB Host ports – not isolated
Ethernet 10/100 RJ45 socket - isolated except shield
WiFi optional (2) built-in, but see (3)
Bluetooth Smart no future function (4)
Micro SDcard slot SDHC cards up to max. of 32GB. (5)
Second CAN-bus port no future function (6)
Programmable relay (7) 1x NO 1x NO / NC (8)
Resistive tank level inputs no 3 (9)
Temperature measurements no 2 (10)
Digital Inputs no 5
Other CCGX Venus GX
Outer dimensions ( h x w x d ) 130 x 120 x 28 mm 45 x 143 x 96 mm
Operating temperature -20 to +50°C
Standards CCGX Venus GX
Safety EN 60950
EMC EN 61000-6-3, EN 55014-1, EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive E4-10R-053535 In progress


  1. The maximum number of VE.Direct devices on a CCGX is 5 (2 normal and 3 via USB). The maximum number of VE.Direct devices on a Venus GX is 6 (2 normal, and 4 via USB).
  2. Though the CCGX has no built-in WiFi it can easily be added by attaching a USB-WiFi dongle. See CCGX Manual, section 1.4.2 for details.
  3. The built-in WiFi in the Venus GX has a very low signal strength - unfortunately. The strength is sufficient for connecting to a phone, tablet or laptop in order to access setup and monitoring. But to connect the Venus GX to the internet either use the built-in Ethernet port or add a USB-WiFi dongle. See CCGX Manual, section 1.4.2 for details. Make sure the Venus GX is running v2.06 or later - the first shipment of Venus GX units ran v2.05.
  4. The hardware of the Venus GX contains a Bluetooth Smart chipset - but there is no function for it in software yet.
  5. Larger SD memory cards (SDXC) are not supported. SD cards can be used for two purposes:
  6. The second CANbus port is accessible via the GND, CAN-H and CAN-L terminals on the left of the product. This port is available for future developments and has no functionality at present.
  7. The programmable relay can be set to act as an alarm relay, automatic genset start stop, or an on/off switch, and is controlled via the GUI and/or ModbusTCP.
  8. In the Venus GX hardware there are two relays - at present only one of them is available for use.
  9. The tank level inputs are resistive and should be connected to a resistive tank sender. Victron does not supply tank senders. The tank level ports can each be configured to work with either European (0 - 180 Ohm); or US tank senders (240 - 30 Ohm).
  10. The Venus GX has two temperature terminals which can be used to measure & monitor all kinds of temperature-inputs. Temperature senders are not included. The required sensor is ASS000001000 - Temperature Sensor QUA/PMP/Venus GX. (Note that this is not the same as the BMV temperature accessory.)

6. More information

DISQUS Comments

venus-gx/start.txt · Last modified: 2018-03-05 12:09 by justin_tyers_live_a_c