10 MEMORY CONFIGURATION OF THE CPU MODULE
10.1 Memory Configuration
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10 MEMORY CONFIGURATION OF THE CPU
MODULE
10.1 Memory Configuration
The following shows the memory configuration of the CPU module.
*1 The built-in memory is a generic term of the memory built in the CPU module.
• The usage of the memory can be checked from the engineering tool. ( GX Works3 Operating Manual)
• The number of writes for the program memory and data memory is limited to 100000 times. When using the
function that the target file is written, pay attention to the number of writes. (File types and storage
memory) The current number of writes for the program memory and data memory can be checked in the
special register (SD630/SD631 and SD634/SD635). ( Page 687 Drive information)
RAM
ROM
Program memory
Data memory
Signal flow memory
CPU buffer memory
Refresh memory
Program cache memory
Device/label memory
SD memory card
Built-in memory
*1