
273
CHAPTER 5 DEVICES
5
5.
10
I
n
te
rrupt
P
o
in
te
r
(I
)
5.10
Interrupt Pointer (I)
The interrupt pointer (I) is used as a label at the start of an interrupt program, and can be used in any programs.
The number of points available for the interrupt pointer is 256 (I0 to I255). The following shows interrupt factors for the
applicable interrupt pointers.
*1
Interrupt pointer numbers can be changed in the PLC Parameter dialog box.
*2
They can be used for interruptions by built-in I/O by configuring parameter in the "PLC Parameter" dialog box.
To use the intelligent function module interrupt, set values in the "Interrupt Pointer Setting" dialog box opened from the "PLC
System" tab of the PLC Parameter dialog box.
The list of interrupt pointer numbers and interrupt factors are shown below.
*1
The time-limit value of the internal timer is set by default. In the PLC System tab of the PLC Parameter dialog box, the
value can be changed within the range of 2ms to 1000ms in increments of 1ms.
*2
When an interrupt occurs, even if no interrupt pointer exists on the program, "CAN'T EXECUTE(I)" (error code: 4220)
does not occur.
*3
Among I50 to I255, I50 has the highest priority (priority 21), and I255 has the lowest priority (priority 226).
Interrupt factor
Interrupt pointer No.
Description
Interrupt by built-in I/O
I0 to I15
*1
Interrupt from a built-in I/O
Interrupt by an internal timer
I28 to I31
Interrupt at fixed intervals by an internal timer of the CPU
module
Intelligent function module interrupt
I50 to I255
*2
Interrupt from the intelligent function module
I No.
Interrupt factor
Priority
I No.
Interrupt factor
Priority
I0
Interrupt by
built-in I/O
1st point
5
I16 to I27
⎯
Empty
⎯
I1
2nd point
6
I2
3rd point
7
I3
4th point
8
I4
5th point
9
I5
6th point
10
I6
7th point
11
I28
Interrupt by internal
timer
*1 *2
100ms
4
I7
8th point
12
I29
40ms
3
I8
9th point
13
I30
20ms
2
I9
10th point
14
I31
10ms
1
I10
11th point
15
I32 to I49
⎯
Empty
⎯
I11
12th point
16
I50 to I255
Intelligent function
module interrupt
Empty
21 to 226
*3
I12
13th point
17
I13
14th point
18
I14
15th point
19
I15
16th point
20
Interrupt pointer (interrupt program label)
Interrupt program
Содержание L02CPU
Страница 1: ......
Страница 2: ......
Страница 13: ...11 Memo ...
Страница 78: ...76 Memo ...
Страница 226: ...224 Memo ...
Страница 317: ...315 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 318: ...316 To the next page ...
Страница 319: ...317 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 320: ...318 To the next page ...
Страница 321: ...319 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 322: ...320 To the next page ...
Страница 323: ...321 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 324: ...322 To the next page ...
Страница 325: ...323 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 326: ...324 To the next page ...
Страница 335: ...333 Memo ...
Страница 339: ......