Mitsubishi 00JCPU User Manual page 146

(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.
Table5.6 provides the type of user setting system area.
System area
High speed monitor area from other station.
Online change area of multiple blocks (Online
change area of FB definition/ST.)
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]
1) Select "Program memory/Device memory" in "Target memory" on the Read from PLC screen.
2) Click the
3) The memory capacity appears in "Total free space volume".
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Table5.6 Type of user setting system area
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.
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
[Read from PLC] in GX Developer.
button.
Free space volume
1) Select the target memory.
2) Click the
Free space volume button.
Figure 5.15 Procedure for checking the memory capacity
Description
.
3) The memory capacity
value is shown.