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CHAPTER 2 APPLICATION OF PROGRAMMING
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(3) Program file structure
The following shows a program file structure.
Item
Description
File header
This area stores data such as the name, size, and created date of files. The file header size ranges from 25 to 35 steps (100 to 140
bytes) depending on the setting made in the Device tab of the PLC Parameter dialog box.
(34 steps is set by default.)
Execution program
This area stores the created program.
Reserved area for
online change
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
online change is complete, remaining number of steps for this area is displayed. The setting value can be changed in the "Online Data
Operation" dialog box. (It can be changed while online change is performed.)
Program file structure
File header
Execution program
Reserved area for
online change
34 steps
(default)
500 steps
These areas are reserved
in increments of file size units.
Содержание L02CPU
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