Mitsubishi Electric MELSEC iQ-F FX5 - Page 32

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1 PROGRAM EXECUTION
1.4 Execution Type of Program
Make the following settings for fixed scan execution type program in CPU parameter.
• Interrupt pointer setting (Interrupt from internal timer: I28 to I31)
• Fixed scan interval setting
Interrupt pointer setting
The interrupt pointer (Interrupt from internal timer: I28 to I31) assigned to a fixed scan execution type program is set up.
Navigation window  [Parameter]  [Module model name]  [CPU Parameter]  "Program Setting"  "Program
Setting"  "Detailed Setting"  "Detailed Setting Information"
1. Open the program setting window.
2. Set type as fixed scan.
3. Specify interrupt pointer.
Window
Displayed items
Fixed scan interval setting
Sets the fixed scan interval setting of the fixed scan execution type program. (It is the same as setting for interrupt from
internal timer.)
Navigation window  [Parameter]  [Module model name]  [CPU Parameter]  "Interrupt Settings"  "Fixed Scan
Interval Setting"
Window
Displayed items
Item Description Setting range Default
Interrupt Pointer Set the interrupt pointer which is assigned to fixed scan execution type
program.
•I28
•I29
•I30
•I31
I31
Specified Time Intervals Fixed scan interval setting value is displayed.
Setup is performed on another window. (Page 30 Fixed scan
interval setting)

Item Description Setting range Default
Interrupt Setting from Internal
Timer
I28 Sets the execution interval of I28. 1 to 60000ms (1ms units) 100ms
I29 Sets the execution interval of I29. 1 to 60000ms (1ms units) 40ms
I30 Sets the execution interval of I30. 1 to 60000ms (1ms units) 20ms
I31 Sets the execution interval of I31. 1 to 60000ms (1ms units) 10ms