5 - 6
When a user setting system area is created, the available area reduces by the number of steps created in the 
area.
(c) Checking the memory capacity after formatting
Select [Online]   [Read from PLC] in GX Developer.
1) Select "Program memory/Device memory" in “Target memory” on the Read from PLC screen.
2) Click the   button.
3)
The memory capacity appears in “Total free space volume”.
Figure 5.3 Procedure for checking the memory capacity
Free space volume
1) Select the target memory.
2) Click the 
Free space volume  button.
3) The memory capacity 
value is shown.