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ErrorLib — Industrial Fault Code Library

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CIPSyncTimeout

CIP Sync Master Timeout

Allen-Bradley · Compact 5000 Digital I/O Modules

What does CIPSyncTimeout mean?

This boolean tag indicates that the module was previously synchronized with an IEEE 1588 master clock, but synchronization has been lost due to a timeout. A tag value of '1' means the module is now using its local clock and may drift from the last known synchronized time, potentially affecting time-critical operations.

Common Causes

  • Loss of network connection to the IEEE 1588 time master.
  • Failure or communication issues with the IEEE 1588 time master itself.
  • Network communication delays, congestion, or failures preventing CIP Sync updates to the module.
  • Module or time master CIP Sync configuration mismatch or error.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the presence and operational status of the IEEE 1588 time master device on the network.

  2. 2

    Check network connections and infrastructure (e.g., Ethernet cables, switches, routers) between the module and the time master for faults.

  3. 3

    Examine network traffic and module diagnostics for any communication issues related to CIP Sync in Studio 5000 Logix Designer.

  4. 4

    Ensure the module and time master have consistent and correct CIP Sync configuration settings in Studio 5000 Logix Designer.

Browse all codes in this manual (38)
Verified technical data. Last updated: April 2026

Related Faults

ConnectionFaultedOwner-Controller Connection FaultCriticalTemperatureModule Critical TemperatureDiagnosticActiveOne or More Module Diagnostics Active
Source: Allen-Bradley Compact 5000 Digital I/O Modules
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