CAN & CANopen
Browse all 7 articles in the CAN & CANopen category.
CANopen Explained: Object Dictionary, PDO, SDO, NMT
CANopen explained: the object dictionary at the centre of every device, SDO vs PDO, expedited and normal transfers, heartbeat and EMCY, and how device profiles work.
CANopen vs CAN Bus: What's the Difference? (Explained)
CANopen vs CAN bus explained: they are not competitors but two layers of the same stack. What CAN provides, what CANopen adds, and how to tell which one a device speaks.
CAN FD Explained: Bigger Frames, Faster Data Phase
CAN FD explained: how the data phase switches to a faster bit rate, 64-byte payloads, BRS and ESI bits, the compatibility problem with classic controllers, and CAN FD light.
DeviceNet Explained: CAN, CIP, Power and Wiring
DeviceNet explained: how it layers CIP over CAN, the four message groups, MAC IDs and duplicate detection, bus power limits, cable types, and speed vs distance limits.
CAN Bus Protocol Explained: Frames, Arbitration, Errors
CAN bus protocol explained from the standards: dominant and recessive bits, identifier arbitration, the five frame formats, error states and bus-off, CAN FD and CAN XL.
CAN Bus Wiring and Termination: The Complete Guide
CAN bus wiring done right: why 120 ohm termination at both ends, split termination, stub limits, voltage levels to measure, and the faults that cause intermittent errors.
SAE J1939 Explained: Network Architecture and Standards
SAE J1939 explained: how the document family fits together, the three physical layer options, Type I and Type II connectors, bridges vs gateways, and subnetwork design.