3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.3 Settings for Creation and Execution of Multiple Sequence Programs
3.3.5 Fixed scan execution type program
3
- 48
1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication with
Intelligent Function
Module
8
Parameters
(e) Index register processing
Refer to Section 9.6.2 for the index register processing performed when a scan
execution type program/low speed execution type program
Note3.24
is switched to a
fixed scan execution type program.Note24
(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.(
CHAPTER 10)
Note24
Diagram 3.46 PLC system screen
Redundant
Note3.24
The low speed execution type program is not available for the Redundant CPU.
Redundant
Note3.24
Select.