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CHAPTER1 OVERVIEW
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1.2 Stor
ing
and Exe
cuting Prog
rams
1.2 Storing and Executing Programs
This section describes where to store and how to execute the programs in the CPU module.
(1) Programming
Programs are created with GX Developer.
For details of program configuration and execution conditions, refer to CHAPTER 2.
(2) Storing programs
Created programs and set parameters are stored in the following memories of the CPU module. (
• Program memory
• Standard ROM
• Memory card
(3) Executing programs
The CPU module executes the programs stored in the program memory.
To execute the programs stored in the standard ROM or a memory card, the programs need to be booted to the
program memory (
Section 5.1.5) when the CPU module is powered off and then on or reset.
Figure 1.2 Executing programs
Figure 1.3 Executing programs by performing a boot operation
CPU module
The CPU module executes
the programs stored here.
Program memory
Parameter
Program
Device comment
Initial device value
Comments are stored
separately from the program.
Standard
ROM
The CPU module executes the programs
booted from the standard ROM or
a memory card to here.
Boot
Boot
Parameter
Program
Initial device
value
Device
comment
Device
comment
Parameter
Program
Initial device
value
CPU module
Memory card
*1
Program
memory