Enable Time Synchronization
CIP Sync™
time synchronization is not required for redundancy to function.Time synchronization does not impact crossload time or processing power of 1756-RM3 redundancy modules.
If your application requires time synchronization, follow these steps.
- On the Date/Time tab in the controller properties, select Enable Time Synchronization.

- Select Apply and then OK.
- When a message appears, select Yes.
- Open the communication module properties.
- Open the device definition.IMPORTANT: At least one communication module requires this configuration if time synchronization is enabled on the controller.
- In the Time Sync Connection field, select Yes.
- Click OK.

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