Allen-Bradley · Compact 5000 Digital I/O Modules
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.
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Verify the presence and operational status of the IEEE 1588 time master device on the network.
Check network connections and infrastructure (e.g., Ethernet cables, switches, routers) between the module and the time master for faults.
Examine network traffic and module diagnostics for any communication issues related to CIP Sync in Studio 5000 Logix Designer.
Ensure the module and time master have consistent and correct CIP Sync configuration settings in Studio 5000 Logix Designer.