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This manual contains the following sections.
Precautions provides general precautions for using the CS/CJ-series Programmable Controllers
(PLCs) and related devices.
Section 1 describes the basic structure and operation of the CPU Unit.
Section 2 describes basic information required to write, check, and input programs.
Section 3 outlines the instructions that can be used to write user programs.
Section 4 the operation of tasks.
Section 5 describes the functions used to manipulate file memory.
Section 6 provides details on the following advanced functions: cycle time/high-speed processing
functions, index register functions, serial communications functions, startup and maintenance func-
tions, diagnostic and debugging functions, Programming Device functions, and the Basic I/O Unit input
response time settings.
Section 7 describes the processes used to transfer the program to the CPU Unit and the functions that
can be used to test and debug the program.
The Appendices provide a comparison of CS/CJ-series, restrictions in using C200H Special I/O Units,
and changes made to Host Link Systems.
Capacity in built-in
file memory
FB program memory 1024 KB 256 KB
Variable tables 128 KB 64 KB
Item CJ-series CPU Unit
CJ1G-CPU45H
Controller Section in
NSJ@-@@@@(B)-M3D
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