Mitsubishi 00JCPU, Руководство пользователя

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CHAPTER5 MEMORIES AND FILES USED FOR CPU MODULE
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5.1 Memo
ries Used fo
r Basic Model QC
PU
5.1.2 Pr
ogram me
mory
(b) Creating a user setting system area
When formatting a program memory, set the capacity of user setting system area.
1) Do not create a user setting system area (the necessary system area only)
The user setting system area is not created during formatting.
2) Create a user setting system area
The user setting system area is created during formatting.
Table5.3 provides the type of user setting system area.
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".
Table5.3 Type of user setting system area
System area Description
High speed monitor area from other station.
Setting this area increases the monitoring speed in the GX Developer connected to such
as a serial communication module.
When using RS-232 and USB together with GX Developer, this area is used to register
monitor data from GX Developer connected to such as a serial communication module.
Online change area of multiple blocks (Online
change area of FB definition/ST.)
Setting this area allows writing of multiple blocks to the CPU module in the RUN status.
For the number of blocks that can be written to the CPU module in the RUN status, refer
to the following.
GX Developer Version 8 Operating Manual
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.