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← TechnologyWhich outcome results when the PLC's watchdog timer unexpectedly triggers in a paper mill's stock preparation system?
A)Rotor imbalance causes severe vibration
B)Emergency stop halts the slurry pump✓
C)Sheet break propagates through dryer
D)Web flutter induces printing errors
💡 Explanation
The slurry pump stops because the *watchdog timer* detects a PLC malfunction; therefore, the controller resets the system to a safe state by halting the pump, rather than continuing operation with potentially corrupted output values which would damage the mixing process.
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