2 Internal Memory in the CPU Unit
2-4
CJ2 CPU Unit Software User’s Manual
Data that has been created using the CX-Programmer or the CX-Integrator is transferred to the internal
memory in the CPU Unit as shown in the following diagram.
2-1-3 Transferring Data from a Programming Device to the CPU Unit
User-created programs
User program
Network symbols
*2
Symbol table
Comments and
program index
Parameters
Routing tables
User Program Area
User program
Tag Memory Area
*3
Source and Comment Areas
Parameter Area
I/O Memory Areas
Network symbols
Program
source
Symbol table
Parameters
Routing tables
CPU Bus Unit System
Setup Area
Comments and
program index
The CX-Programmer is used
to set specific I/O memory
status, and writing to the I/O
Memory Area is enabled.
(PLC memory, PLC Setup,
I/O tables)
CPU Unit
CX-Programmer
CX-Integrator
CPU Bus Unit System Setup
*2
*1: Supported only by the CJ2M CPU Units.
With CJ2H CPU Units, function block
definitions are stored in the User Program
Area instead of the FB Program Area.
*2: Ethernet settings are made and trans-
ferred from the CX-Programmer. Data link
tables are made and transferred from the
CX-Integrator.
*3: Supported only by the CJ2H-CPU6@-EIP
and CJ2M-CPU3@.
*1
Function block
definitions
FB Program Area
*1
Function block
definitions