Pointer Setting; Interrupt Pointer (I) - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Pointer setting

The following menu item is to set pointers.
[CPU Parameter]  [Memory/Device Setting]  [Pointer Setting]
Window
Displayed items
Item
Global Pointer Start
Total Points
Global Pointer
Local Pointer
Pointer Type Label
*1 Up to the number of "Total points of pointer device area" - "Number of points of global pointer".
*2 The default number of points is 32768 for the R120CPU, R120ENCPU, R120PCPU, R120PSFCPU, and R120SFCPU.
*3 The default number of points is 8192 for the R120CPU, R120ENCPU, R120PCPU, R120PSFCPU, and R120SFCPU.
*4 The default number of points is 16384 for the R120CPU, R120ENCPU, R120PCPU, R120PSFCPU, and R120SFCPU.
Specify a pointer number which is equal to or lower than "(end number of the pointer range specified in the
parameter) - (number of points of the global pointers)".
21.13

Interrupt Pointer (I)

This device is used as a label located at the head of the interrupt program. This pointer can be used in all the programs being
executed.
Interrupt pointer (interrupt program label)
Setting the execution type of program to the event execution type eliminates the need to write (I) the
interrupt pointer. ( Page 59 Interrupt occurrence by the interrupt pointer (I))
Description
Set the start number of the global pointer.
Check the total number of points for the
pointer.
Set the number of points of the global pointer.
Set the number of points of the local pointer.
Set the number of points for the pointer type
label assignment area.
Interrupt program
IRET
Setting range
*1
P0 and over

• R120CPU, R120ENCPU, R120PCPU,
R120PSFCPU, R120SFCPU: 0 to 32768
points (in increments of 1 point)
• Other CPU modules: 0 to 16384 points (in
increments of 1 point)
Default
0
*2
16384 points
*3
4096 points
*3
4096 points
*4
8192 points
21 DEVICES
363
21.13 Interrupt Pointer (I)
21