The actual scan time is:

A) calculated and stored in the PLC's memory.
B) computed each time the END instruction is executed.
C) the time taken to scan inputs and outputs and execute the user program.
D) All of these choices are correct

Actual Scan Time

The real time taken for a PLC to complete one cycle of reading inputs, executing the program, and updating outputs.

PLC's Memory

The storage area in a Programmable Logic Controller where data, instructions, and system information are kept for processing and control tasks.

END Instruction

A programming command that specifies the end of a block of code or the conclusion of a program's logic sequence.