Enable Time Synchronization on the controller

Enable CIP Sync on the controller to synchronize clocks across a network of distributed devices. Enabling Time Synchronization enables CIP Sync and allows the controller to participate in the selection of the grandmaster clock. If the controller is the grandmaster clock, all devices connected to the controller synchronize with the clock of the controller. If the controller is not the grandmaster clock, the controller synchronizes to the device that is currently regulating system time.
IMPORTANT:
CIP Sync is only supported on EtherNet/IP and the ControlLogix chassis.
Prerequisites
  • Connect the controller to the project.
To enable Time Synchronization on the controller
  1. On the explorer
    bar, select FTDStudioDevicesIcon
    Devices
    .
  2. In
    Devices
    , right-click the controller and select
    Open
    .
  3. In the device profile, select
    Time Synchronization
    .
  4. In
    Time Synchronization
     view, select
    Enable Time Synchronization
    .
    IMPORTANT
    Enabling
    Time Synchronization
     on a controller impacts the system time related to this controller, other controllers, and CIP Sync enabled devices.
    IMPORTANT
    When
    Time Synchronization
     is enabled, the grandmaster clock controls the wall clock. If the controller is a slave to the grandmaster clock, the option to change the date and time on this controller is not enabled. Only the grandmaster clock can change the local wall clock time of the controller.
  5. Select
    OK
    .
    TIP:
    Information messages at the top of the view display the current state of time synchronization for CIP Sync and Coordinated System Time (CST) in the chassis:
    • For CIP Sync, the controller is the system time master.
    • For CIP Sync, the controller is a synchronized time slave.
    • The controller detected a duplicate Master CST.
    • CST Mastership disabled.
    • No CST master.
    For more information about Time Synchronization and CIP Sync, refer to
    Integrated Architecture and CIP Sync Configuration Application Techniques
    , publication IA-AT003.
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