The CAN communication card is used for the computer to communicate with other nodes as the master controller.
The CAN communication card is usually a PCl interface, which is plugged into the PCl slot of the computer, and the card is integrated with the CAN controller and the CAN interface chip. When using, it is necessary to compile control program, configure communication parameters through PCl interface, and send and receive data of CAN bus.
If you use a laptop without a PCI slot, you CAN choose the USB to CAN module, which has the same function as the CAN communication card.