Omron SYSMAC CP2E-E D Series User Manual

2 Internal Memory in the CPU Unit
2-2
CP2E CPU Unit Software User’s Manual(W614)
2-1 Internal Memory in the CPU Unit
The internal memory in the CPU Unit consists of built-in RAM, built-in non-volatile RAM and built-in
Flash Memory. The built-in RAM and built-in non-volatile RAM are used as execution memory and the
built-in Flash Memory is used as backup memory.
The built-in RAM is the execution memory for the CPU Unit.
The user program and parameters are stored in the built-in RAM.
Data is unstable when the power supply is interrupted.
The built-in non-volatile RAM is the execution memory for the CPU Unit. It is used to retain the data
when the power supply is interrupted.
I/O memory is stored in the built-in non-volatile RAM.
Data Memory Area (D), Holding Area (H) and Counter Area (C) are retained even if the power supply is
interrupted with no battery installed.
2-1-1 CPU Unit Memory Backup Structure
Built-in RAM
Build-in Non-volatile RAM
Built-in Flash Memory
(Retained when the power
supply is interrupted)
User Program Area
FB Program Area
(Backup)
Parameter
PLC Setup
Routing Table
IP Router Table
IP Address Table
(Backup)
Source and Comment Areas
User Program Area
FB Program Area
Parameter
Execution Memory
Built-in RAM
(Not retained when the power
supply is interrupted)
Built-in Non-volatile RAM
(Retained when the power
supply is interrupted)
I/O Memory Areas
CPU Unit
DM Area
(Backup)
DM Area
Backup Memory
Execution Memory
Automatic backup
Restore at startup
Automatic backup
Restore at startup
Backup using bit in Auxiliary Area
DM Area data restore at startup

Omron SYSMAC CP2E-E D Series Specifications

General

Brand	Omron
Model	SYSMAC CP2E-E D Series
Category	Computer Hardware
Language	English