Which outcome occurs when a PLC's scan cycle exceeds its specified watchdog timer duration in an automated bottling plant?

💡 Explanation

The system faults due to watchdog timer expiration triggering error-handling; because the allotted time is over, the internal protective fault state is active rather than proceeding. This prevents erratic and possibly dangerous operational modes from continuing normally; therefore, the whole system locks up to prevent injury.

• Which operational risk primarily increases when a refrigeration system uses synthetic refrigerants near their critical point?
• Which risk increases in a hydraulic lift system due to repetitive, rapid cylinder deceleration?
• Which system behavior results from inadequate guard band spacing in WDM optical fiber?
• Which outcome occurs when hydraulic actuator position feedback fails in a CNC milling machine?
• Which problem significantly worsens with increased electromagnetic Interference?
• Which failure mode arises when chromatic dispersion exceeds compensation limits in wavelength division multiplexing (WDM) optical fiber?