1
OVERVIEW
1.2 Program Storage and Operation
1
- 18
1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication with
Intelligent Function
Module
8
Parameters
2) High Performance model QCPU, Process CPU, Redundant CPU
* 1 : The standard ROM is used to ROM the program memory.
Note1.2
Note2
* 2 : The standard RAM is a memory provided for using the file registers and local devices without
installing a memory card.
The standard RAM is used to speed up access to the file registers.
* 3 : The intelligent function module parameters set by GX Configurator are included.
* 4 : Only available for the Flash card.
Note that only read is enabled.
* 5 : Refer to the following manual for the CPU shared memory.
QCPU User's Manual (Multiple CPU System)
Diagram 1.8 Memory configuration and storage destinations of High Performance model QCPU, Process CPU, Redundant CPU
(b) Program execution
The CPU module operates the program stored in the program memory.
Note2
Diagram 1.9 Execution of stored program
CPU module Memory card
Parameter
3
Program
Device initial value
Program memory
Parameter
3
Program
Device initial value
Local devices
Standard ROM
1
Standard RAM
2 4
5
File register
Parameter Program
Device initial valueDevice commentsDevice comments
Device comments
RAM
File register Local devices
Parameter Program
Device initial valueDevice comments
File register
4
Failure history
Sampling
ROM
CPU shared memory
Note1.2
Note1.2
Redundant
The Redundant CPU does not include CPU shared memory.
Note1.2
Redundant
Program memory
Parameter
Program
Device initial value
Device comments
Execution of program
in program memory
For program comment display
by GX Developer
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