CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsMEDIUMFree question
A hospital IT team applies its monthly reboot policy to a PLC cell running a bottling line. Why is that same policy unsuitable for the line controllers?
- A.Operating systems on PLCs reject restart commands
- B.Unplanned stops can spoil product or damage machinery
- C.PLC firmware locks permanently after the first restart
- D.Reboots erase the historian archive kept on the controller
Why B is correct
Industrial processes are continuous or batch operations where an unscheduled stop can spoil product, stress machinery or create a safety event. Restarts are planned with operations. PLCs do not lock after restart and they do not hold the historian archive.
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