CQM1H-CPU61 Omron Programmable Controllers Inner Boards

This manual describes programming of the CQM1H Programmable Controller, including memory
structure, memory contents, ladder programming instructions, etc., and includes the sections
described below. Refer to the CQM1H Operation Manual for hardware information and Programming
Console operating procedures.

Please read this manual carefully and be sure you understand the information provided before
attempting to program and operate the CQM1H.

Section 1 explains the PC Setup and related PC functions, including interrupt processing and communications. The PC Setup can be used to control the operating parameters of the PC.

Section 2 describes the Inner Boards that can be mounted in the CPU Unit to expand functionality.
Refer to the Serial Communications Board Operation Manual (W365) for details on the Serial Communications Board. Only an outline of this Board is provided in Section 2.

Section 3 describes the structure of the PC’s memory areas, and explains how to use them. It also
describes Memory Cassette operations used to transfer data between the CPU Unit and a Memory
Cassette.

Section 4 explains the basic steps and concepts involved in writing a basic ladder program. It introduces the instructions that are used to build the basic structure of the ladder program and control its
execution.

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