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CANopen

CANopen

CANopen is a communication protocol for layer 7 (user layer in the ISO/OSI model), which features a high degree of flexibility for configuration and uses CAN as layer 2 transport medium. Originally developed for motion applications, it is now an established protocol in a wide range of application areas, such as medical engineering, naval navigation, railroading and even building automation.

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    5ACPCI.XCOM-00
    PCI CANopen fieldbus card - 1 CANopen master
    PCI CANopen fieldbus card - 1 CANopen master
    5ACPCI.XCOS-00
    PCI CANopen fieldbus card - 1 CANopen slave
    PCI CANopen fieldbus card - 1 CANopen slave
    5LS172.6
    Logic scanner, PCI half-size module, 2 CAN bus interfaces, electrically isolated, max. 500 kbit/s, object buffer in transmit and receive direction, 256 kB SRAM (Automation Runtime)
    Logic scanner, PCI half-size module, 2 CAN bus interfaces,...
    5LS187.6-1
    Logic scanner, PCI half-size module, 1 POWERLINK (V1/V2) interface, managing or controlled node, 1 CAN interface, electrically isolated, max. 500 Mbit/s, object buffer in transmit and receive direction, 1 MB SRAM (Automation Runtime), order 2x TB704 terminal blocks separately.
    Logic scanner, PCI half-size module, 1 POWERLINK (V1/V2) interface,...
    5LS197.6
    Logic scanner, PCI half-size module, 1 X2X Link master interface, electrically isolated, 1 CAN interface, electrically isolated, max. 500 Mbit/s, object buffer in transmit and receive direction, 1 MB SRAM (Automation Runtime), order 3x 0TB704.9 terminal blocks separately
    Logic scanner, PCI half-size module, 1 X2X Link master interface,...

CANopen is not a classic master-slave system; instead, it runs with client-server services and follows the producer-consumer principle.
It provides standardized communication objects: Service Data Objects (SDO) for configuring object directory entries, Process Data Objects (PDO) for transporting real-time data, Network Management objects (NMT) for controlling and monitoring nodes as well as other objects such as synchronization objects, timestamps and emergency telegrams.

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