Mitsubishi Q Series Programming Guide

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5 SFC PROGRAM PROCESSING SEQUENCE
MELSEC-Q
5.2 Whole Program Processing of High Performance Model QCPU,
Process CPU, Redundant CPU and Universal model QCPU
This section explains the whole program processing of the High Performance model QCPU,
Process CPU, Redundant CPU and Universal model QCPU.
Since this manual describes only the outline, refer to the QCPU User's Manual (Function
Explanation, Programming Fundamentals) for details.
5.2.1 Whole program processing sequence
The High Performance model QCPU, Process CPU, Redundant CPU and Universal model QCPU
can store multiple programs in the program memory as files and execute multiple files
concurrently or only the specified file.
The whole operation image is as shown below.
Initial execution
type program
Low speed
execution
type program
Scan execution
type program
Stand-by type
program
Started only
when necessary.
CPU module RUN
Execution time
monitoring
1)
2)
3)
4)
Fixed scan
execution type
program
5)
Can be executed by High
Performance model QCPU,
Process CPU or Redundant
CPU.
: A low speed execution type program cannot be executed by the Redundant CPU and
Universal model QCPU.
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Mitsubishi Q Series Specifications

General

Brand	Mitsubishi
Model	Q Series
Category	Control Unit
Language	English