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3.3 Settings for Creation and Execution of Multiple Sequence Programs
3.3.5 Fixed scan execution type program
3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
(e) Index register processing
Refer to Section 10.6.4 for the index register processing when the program is
switched from the scan execution type program/low speed execution type
program
Note3.26
to the fixed scan execution type program.Note25
(f) High speed execution setting and overhead time of fixed scan execution
type program
The following processing is performed when the fixed scan execution type
program is executed.
• Save and restoration of index register data
• Save and restoration of file name of file register being used
The above processing is not executed when "High speed execution" of an
interrupt program/fixed scan execution type program is selected in the PLC
system of the PLC parameter dialog box.
The overhead time of the fixed scan execution type program can be
shortened.(
Section 11.1.2)
Note25
Figure 3.47 PLC system screen
Redundant
Universal
UD
Note3.26
Note3.26
The Redundant CPU and Universal model QCPU do not support low speed execution type
programs.
Redundant
Universal
UD
Note3.26Note3.26
Select.
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