Which capability is commonly associated with a programming device?

• A. Transferring the control program to the PLC
• B. Providing continuous real-time motor torque control
• C. Supplying cooling water to the cabinet
• D. Replacing PLC firmware without user consent

Answer: (A)

Transferring the control program to the PLC is the capability most closely tied to a programming device. A programming device serves as the interface used to create, edit, and download the ladder logic or other PLC code from a computer or handheld tool into the PLC’s memory, so the PLC can execute the programmed instructions. This loading or downloading of the control program is the core function that enables the PLC to run the desired logic.

In contrast, real-time motor torque control is typically handled by a motor drive or motion controller, not by the programming device itself. Supplying cooling water to the cabinet is a hardware/infrastructure function, unrelated to programming. Replacing PLC firmware without user consent would fall under maintenance or security procedures and is not a standard capability of a programming device used for everyday programming and deployment.