A control device configured to control an industrial machine, the control device having: a plurality of memories including a first memory configured to hold data when a power supply is off and a second memory configured to inhibit data from being held when the power supply is off; and circuitry configured to: set, in each of a plurality of data units, an attribute indicating whether the data unit is to be held when the power supply is off; and set an address of each data unit such that each data unit is stored in one of the plurality of memories corresponding to the attribute.

A system for accessing memory comprising a memory management component configured to: mark each of a plurality of memory areas as pending in response to identifying at least one data retrieval instruction directed towards a target memory comprising the plurality of memory areas, each memory area associated with a range of memory addresses that is mapped thereto; and while at least one of the plurality of memory areas is marked as pending: remove the marking as pending for at least one first memory area of the plurality of memory areas upon the at least one first memory area being ready for access; and access at least one first value in the at least one first memory area in response to at least one first memory access instruction, subject to the removal of the marking as pending of the at least one first memory area; and a manufacturing processes thereof.