Batteries are used in a PLC's processor to
A)maintain data in volatile memory when line power is removed from the processor.
B)operate the status lights LEDs.
C)maintain data in nonvolatile memory when line power is removed from the processor.
D)maintain outputs through a power failure.

Question

Quizplus · Accepted Answer

Batteries in a PLC's processor are primarily used to maintain data in volatile memory (such as RAM) when the main power supply is disconnected. This ensures that important data isn't lost during power outages.

Batteries Are Used in a PLC's Processor to