How many parts does ISO 11898 consist of ?

ISO 11898 is a technical standard that defines the requirements and parameters for the Controller Area Network (CAN) bus system. The CAN bus system is widely used in various industries for reliable communication between electronic control units (ECUs), such as those found in automobiles, industrial automation systems, and other devices.

ISO 11898 consists of four parts that cover the different aspects of the CAN protocol. These parts include:

The Physical Layer

The Data Link Layer

The Network Layer

The Transport Layer

The Physical Layer outlines the electrical specifications, such as voltage levels, signaling rate, and connector pin assignments, that ensure reliable data transmission across the network.

The Data Link Layer deals with frame formatting, error detection, and acknowledgement mechanisms that establish the rules for message transmission, reception, and arbitration, enabling multiple ECUs to communicate effectively and avoid data collisions.

ISO 11898 also introduces concepts like bit stuffing and acknowledgment fields, which facilitate reliable and efficient data transfer.

ISO 11898 is widely recognized and respected in the industry as the benchmark for the design and implementation of CAN systems. Its standardization provides a clear and standardized framework for the development of CAN systems, ensuring interoperability and facilitating the integration of different electronic control systems.