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How to Use This Manual
This manual is prepared for users to understand the hardware specifications of those modules such as the
CPU modules, power supply modules, and base units, maintenance and inspections of the system, and
troubleshooting required when you use MELSEC-Q series PLCs.
The manual is classified roughly into three sections as shown below.
1) Chapters 1 and 2 Describe the outline of the CPU module and the system
configuration.
The basics of the system configuration of CPU module are
described.
2) Chapters 3 to 7 Describe the general specifications indicating the operating
environments of the CPU module, power supply module, and
base units, and the performance specifications of these
modules.
3) Chapters 8 to 10 Describe the overall maintenance such as the installation of the
CPU module, daily inspections, and troubleshooting.
REMARK
This manual does not explain the functions of the CPU module.
For these functions, refer to the manual shown below.
• High Performance model QCPU (Q Mode) User's Manual (Function Explanation,
Program Fundamentals)