![background image](http://html1.mh-extra.com/html/omron/cp1l-12-2007/cp1l-12-2007_operation-manual_742083361.webp)
328
Interrupt Functions
Section 6-1
Scheduled Interrupt Interval Setting
Note
(1) Set a scheduled interrupt time (interval) that is longer than the time re-
quired to execute the corresponding interrupt task.
(2) If the scheduled time interval is too short, the scheduled interrupt task will
be executed too frequently, which may cause a long cycle time and ad-
versely affect the cyclic task processing.
(3) If an interrupt task is being executed for another interrupt (input interrupt,
high-speed counter interrupt, or external interrupt) when the scheduled
interrupt occurs, the scheduled interrupt will not be executed until the oth-
er interrupt task is completed.
When different kinds of interrupts are being used, design the program to
handle multiple interrupts smoothly. Even if two interrupts occur at the
same time, the scheduled interrupts will continue as programmed, so the
scheduled interrupt tasks will continue to occur at the scheduled times
even if specific scheduled interrupts are delayed.
Writing the Ladder
Program
MSKS(690) Settings
The MSKS(690) instruction must be executed in order to use the scheduled
interrupt. The settings made with MSKS(690) are enabled with just one exe-
cution, so in general execute MSKS(690) in just one cycle using an up-differ-
entiated condition.
MSKS(690)
N
S
Execution condition
Specifies scheduled interrupt 0 (interrupt task 2).
Sets the scheduled interrupt time interval and
starts timing.
Содержание CP1L - 12-2007
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 428: ...395 Clock Section 6 9...
Страница 429: ...396 Clock Section 6 9...
Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...634 Index...
Страница 671: ...636 Revision History...