Beckhoff · TwinSAFE Logic FB
A discrepancy has been detected in input group 1 for the FB CONNECTION SHUTDOWN. This means the redundant input signals ('DeactivateX TRUE') are not in agreement, which prevents the Connection Shutdown function from reliably commanding a SHUTDOWN state or detecting it from the assigned Connection. This poses a risk to controlled deactivation and will stop the machine.
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Inspect the wiring for input group 1, ensuring both channels providing the 'DeactivateX TRUE' signals are correctly connected, free from damage, and properly terminated.
Verify the functionality of the input devices providing the 'DeactivateX TRUE' signals; ensure their redundant outputs are synchronized.
Review the discrepancy time parameter for input group 1 in the FB CONNECTION SHUTDOWN configuration; adjust if application-specific timing requires it.
Monitor the individual input channels for group 1 in real-time using diagnostics to identify which channel is deviating or delayed.