Mitsubishi 00JCPU User Manual

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2.3.3 Low-speed execution type program
(1) Definition
Low-speed execution type program is executed only when the constant scan function is used or a low-speed
program execution time value is set.
This type of program can be used for programs that are not necessary to be executed in every scan (such as a
program for printer output).Note5
(2) Processing
(a) Program operation
Program operation differs depending on the setting in the PLC RAS tab of the PLC parameter dialog box
( (4) in this section).
Set the parameter as necessary.
1) When keeping each scan time constant and giving priority to control accuracy
Set a constant scan time value.
2) When securing the time for execution of low-speed execution type programs
Set a low-speed program execution time value.
Figure 2.26 Execution of a low-speed execution type program (When executed within the remaining time in each constant scan)
Note5
Note2.5
Scan execution type
program
Low-speed
execution type
program
Scan
execution B
Scan
execution A
Low-speed
execution B
Low-speed
execution A
END processing
Scan
execution B
Scan
execution A
Low-speed
execution B
Low-speed
execution A
END processing
Low-speed END
processing
Low-speed END
processing
Constant
scan
Scan time (1 scan) Scan time (1 scan)
Low-speed scan time
Low-speed scan time
Note2.5
The Redundant CPU does not support the use of low-speed execution type programs.
Redundant

Mitsubishi 00JCPU Specifications

General

Brand	Mitsubishi
Model	00JCPU
Category	Controller
Language	English