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Examples Example1: The following model will detect CAN Bus communication fault: We will Enable CAN Bus RxWatchdog in CAN_setup block. Please see parameters settings in "CAN_setup" block below: So if we don't send out data frame with CAN ID=234 from external CAN Bus device, we will get value 1 from Display block (Communication fault). However, if we send out data frame with CAN ID=234 and Data1=0 (first byte in data field: RxWatchdog counter) and DLC=1 every 330ms from external CAN Bus device, we will get value 0 from Display block (Communication normal). Please open "your CAN Controller library folder"/examples/example1_CAN_ComFault.slx (You must change USB serial Port number in CAN_setup block according to your physical USB port number)