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(4) Memory capacity
(a) Units of file sizes
When a file is written to the memory area, the unit of the stored file depends on the CPU module and memory
area to be written. This unit is referred to as a file size unit.
(b) Calculation example of memory capacity
Memory capacity when the parameters and program are written to the program memory.
The memory capacity is calculated in units of file sizes of the CPU module to be written. For a program
memory, the file size unit is 1 step (4 bytes).
• Calculation of program file size
The program file size can be found by the program size + reserved area for online change. Since a
program is stored in units of file sizes (1 step), only the amount equal to the program size is occupied.
525 + 500 = 1025 steps (4100 bytes)
• Calculation of parameter file size
Since the parameter file capacity is 2936 bytes, it occupies 734 steps (2936 bytes) in the program
memory.
[Result] Program size + parameter file capacity = 1025 + 734 = 1759 steps (7036 bytes)
Memory capacity can also be calculated from a programming tool.
[Tool] [Confirm Memory Size...]
For calculation of memory capacity using a programming tool, refer to the following.
Manual for the programming tool used
Memory L02CPU L26CPU-BT
Program memory 1 step (4 bytes)
Standard RAM 128 steps (512 bytes)
Standard ROM 128 steps (512 bytes) 512 steps (2048 bytes)
SD memory card 32K bytes
[Conditions] • Program file to be written: MAIN.QPG (525 steps (2100 bytes))
• Parameter file to be written: PARAM.QPA (2936 bytes)
• Reserved area for online change: 500 steps (2000 bytes)
Ex. Ex.