Which description matches a hard copy of the PLC program?

• A. The online display of the program variables
• B. A hard copy of the program put into the PLC
• C. The source code on disk
• D. A printout of the program verification report

Answer: (B)

The thing being tested is understanding what "hard copy" means in relation to the PLC. A hard copy of the PLC program is the version that is actually stored in and executed by the PLC’s memory—the program that resides inside the PLC hardware and controls its operation. This is the physical, installed version that the controller uses to run logic and drive I/O.

Why this fits: the PLC runs from the program that’s loaded into its memory, so that copy is the true, working program “in the device.” The online display of program variables is just current values showing what the running program is doing, not the program itself. The source code on disk is a soft copy or editable form used to create or update the program, not the version currently running inside the PLC. A printout of the program verification report is documentation of testing results, not the actual program loaded into the PLC.