4.3 CAN - VBOX 3i RTK

The Racelogic CAN bus connection (CAN port by default) can be used to connect Racelogic modules (i.e. TC8, FIM03 etc), and displays such as VBOX Manager and Multi-Function Display. This port will allow the VBOX 3i to log up to a maximum of 32 Racelogic module channels.

Note: For the Racelogic CAN port, it is recommended that the CAN Termination resistor is on.

Note: VBOX 3i has an additional channel limit of 64. Additional channels consist of VCI channels (up to 16), RL CAN channels (up to 32) and any other channels that fall outside the channels on the Standard tab in VBOX Setup, such as AD inputs, IMU KF channels, Twin antennas channels, ADAS channels and so on.

CAN channel availability – Multi-Function Display

A Multi-Function Display (RLDSP03) can display any channel that is present on the Racelogic CAN bus, and in the first 32 CAN channel ordering. 

First 32 CAN channel ordering priority goes to any external data source. Therefore if there are 32 external channels set to log by the VBOX 3i, no internal module channel will be present for selection on the MFD.

CAN channel availability – send over serial

Same as the MFD, a data channel must be in the first 32 CAN channel ordering for the VBOX 3i to send out data over serial to a ‘live data window’ on VBOX Test Suite.

First 32 CAN channel ordering priority goes to any external data source. Therefore if there are 32 external channels set to log by the VBOX 3i, no internal module channel will be present for selection to send over serial.

The Vehicle CAN bus (VCI) connection (SER port by default) can be used to connect to a vehicle CAN or a sensor CAN bus. This port will allow VBOX 3i to log up to a maximum of 16 channels.

Note: For the VCI CAN port, it is recommended that the CAN Termination resistor is off when connected to a vehicle's CAN bus.
 

Configuration is performed using the Internal CAN Input tab of the Channel Configuration menu in VBOX Setup. You can manually enter CAN signal parameters or import them directly from a CAN database (.dbc) file if available.

Racelogic supplies a free, encrypted vehicle CAN database. This gives you the ability to log basic CAN data from a large number of current vehicles from a broad selection of manufacturers.

You can also download all of the CAN database files for vehicles we have reverse-engineered from our website. To access these files you will need to use the username and password that you set up when you registered your VBOX unit. If you have not registered it yet, or have forgotten your credentials, you can register (or re-register) your VBOX unit here.

You can output channel data from the Racelogic CAN bus (i.e. Racelogic modules such as TC8) on the isolated customer VCI bus. You can configure output data (in VBOX Setup) using channels from the available channels dropdown list, and configure the identifier as required.

Example application:
A Racelogic IMU connected to the Racelogic CAN bus to use IMU yaw rate for improved dual antenna slip translation data. The same IMU data is transmitted from the customer VCI bus to be logged by third-party CAN logging equipment.

The VBOX 3i RTK can output up to 6 user-configured CAN messages and up to 12 CAN channels over the customer VCI bus.

Be aware of checking the CAN pass-through channel selection when you are re-entering VBOX Setup. If the VBOX unit is logging many external CAN channels, you can re-adjust the dropdown channel selection. When you exit VBOX Setup, the adjusted CAN channels will be applied.

Note: If you are loading VBOX configuration settings from a previously saved .RCF file, and there were external modules connected during the save, the selected CAN pass-through channels may not be loaded correctly. You should always check and configure the channels directly in the VBOX Setup software.