A memory map in PLC terminology is also known as which term?

A memory map in PLC terminology is also known as which term?

• A. Register map
• B. I/O map
• C. Memory layout
• D. Data map

Answer: (A)

In PLC terminology, how the processor’s internal storage locations are addressed is described by the memory map. Those storage locations are implemented as registers inside the CPU, so this set of addresses and what they hold is effectively a register map. The term I/O map is about mapping external input and output modules to the program’s address space, not the internal data storage. So the memory map corresponds to the register map because both define how internal data storage is organized and accessed by the program.

In PLC terminology, how the processor’s internal storage locations are addressed is described by the memory map. Those storage locations are implemented as registers inside the CPU, so this set of addresses and what they hold is effectively a register map. The term I/O map is about mapping external input and output modules to the program’s address space, not the internal data storage. So the memory map corresponds to the register map because both define how internal data storage is organized and accessed by the program.