Mitsubishi Electric L02SCPU User's Manual And Reference page 41

(3) Program file structure
The following shows a program file structure.
Program file structure
Item
This area stores data such as the name, size, and created date of files. The file header size ranges from 43 to 59 steps (172 to 236
File header
bytes) depending on the setting made in the Device tab of the PLC Parameter dialog box.
Execution program This area stores the created program.
This area is used when the number of steps is increased after writing data in the RUN status. (Default: 500 steps (2000 bytes) After the
Reserved area for
online change is complete, remaining number of steps for this area is displayed. The setting value can be changed in the "Online Data
online change
Operation" dialog box. (It can be changed while online change is performed.)
57 steps
File header
(default)
Execution program
Reserved area for
500 steps
online change
CHAPTER 2 APPLICATION OF PROGRAMMING
These areas are reserved
in increments of file size units.
Description
2
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