Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 24

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]  [FX5UCPU]  [CPU Parameter]  "Program Setting"  "Program Setting" 
"Detailed Setting"  "Detailed Setting Information"
1.
Open program setting screen.
2.
Set type as fixed scan.
3.
Specify interrupt pointer.
Window
Displayed items
Item
Interrupt Pointer
Specified Time Intervals
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]  [FX5UCPU]  [CPU Parameter]  "Interrupt Settings"  "Fixed Scan Interval
Setting"
Window
Displayed items
Item
Interrupt Setting from Internal
Timer
1 PROGRAM EXECUTION
22
1.4 Execution Type of Program
Description
Set the interrupt pointer which is assigned to fixed scan
execution type program.
Fixed scan interval setting value is displayed.
Setup is performed on another screen. (Page 22 Fixed
scan interval setting)
Description
I28 Sets the execution interval of I28.
I29 Sets the execution interval of I29.
I30 Sets the execution interval of I30.
I31 Sets the execution interval of I31.
Setting range
• I28
• I29
• I30
• I31

Setting range
1 to 60000 ms (1 ms units)
1 to 60000 ms (1 ms units)
1 to 60000 ms (1 ms units)
1 to 60000 ms (1 ms units)
Default
I31

Default
100 ms
40 ms
20 ms
10 ms