CAN
What is a CAN?
Definition
The Controller Area Network (CAN) protocol is an international standard defined by ISO 11898. It is a robust communication standard that is used to allow different sensors, machines, or controllers to communicate with one another.
The CAN interface is popularly used in industrial automation, home automation, and automobiles.
CAN FD
CAN FD (Controller Area Network Flexible Data-Rate) is an extension of the CAN protocol, with the primary difference being the flexible data. Using CAN FD, sensors can change data rates with larger or smaller payload, and the data rate is 5x faster than the classic CAN. The faster data speed and larger payload capacity result in many system-level operating advantages.
CAN Controllers and Transceivers
CAN communication consists of two main components: the CAN controller and the CAN transceiver.
A single CAN node.
The CAN controller handles the data link layer of CAN communication, and the CAN transceiver handles the physical layer. CAN transceivers provide the differential physical layer interface between the data layer link, hardware protocol, and the physical wiring of the CAN bus.