CAN Vehicle Toolbox - How to read errors?

Question

Gerard Benenyan 2011-10-25

回答： Harimurali 2024-2-7

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 2024-2-7

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