CAN Vehicle Toolbox - How to read errors?

Hello, Does anyone know how to get error status at each CAN message send, using the Vehicle Network Toolbox communication blocks? Thanks, Gerard B.

Answer 1

[Harimurali]

Hi Gerard,

The CAN Receive and CAN Unpack blocks can be used to get the error status of each message. Follow the steps mentioned below to do the same:

• Connect the "CAN Msg" port of the "CAN Receive" block to the input port of the "CAN Unpack" block.
• Open the block parameters of the "CAN Unpack" and enable the "Ouput error" option.
• The above step will result in a new "Error" output port for the "CAN Unpack" block.
• This port outputs the error status of the message received. Ouput value 1 implies that the incoming message is an error frame, and 0 implies that there is no error.

Refer to the following documentation for information about "CAN Unpack" block: https://www.mathworks.com/help/releases/R2023b/vnt/ug/canunpack.html