As shown in the illustrated block diagram for a programmable logic controller system, in what functional component is the program developed and used to transfer the program to the memory unit of the PLC? EL-0225

Correct Answer: Option C — programming device

Programming devices, such as a dedicated handheld terminal or personal computer running PLC software, are used by marine engineers to write, edit, and download control logic directly into the processor and memory units of programmable logic controller systems.