Introduction The Controller Area Network (CAN bus) is a robust serial communication bus originally developed for automotive applications in the 1980s. It allows microcontrollers and electronic control units (ECUs) in a vehicle or machine to communicate with each other without a central host computer. Since its inception, CAN bus has…
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Enhancing CAN: Higher-Layer Protocols for Advanced Networking
By Wilfried Voss on March 11, 2025
This article is part of our comprehensive SAE J1939 online documentation. While highly effective in automobiles and small-scale applications, the Controller Area Network (CAN) alone is not ideal for machine automation due to its limitation of only 8 bytes per message. To address this, higher-layer protocols such as CANopen for…
