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CHAPTER5 MEMORIES AND FILES USED FOR CPU MODULE
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5.2 Program File Structure
(2) Displaying the program capacity on the GX Developer screen
During programming by GX Developer, the program size (total of the file header size and the number of steps in
the created program) is displayed by the number of steps as shown in Figure 5.25.
● The program size displayed during programming by GX Developer is the total of the file header and
execution program, and the capacity of the reserved area for online change (500 steps) is not included.
The size of program having the execution program area of 491 steps is displayed on the GX
Developer screen as shown below (The file header is fixed to 34 steps).
● Since files are stored in units of file sizes in the program memory, the program size displayed during
programming by GX Developer may differ from the program file size in the CPU module.
( Section 5.3.3)
Figure 5.25 Displaying the program size
Figure 5.26 File status displayed on the GX Developer screen
The program size is displayed.
Example
File header
Execution program
34 steps
491 steps
Display on the GX Developer screen:
34 steps + 491 steps = 525 steps