Allen-Bradley controllogix 1756-L55M12, Руководство пользователя

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67 Publication 1756-UM001G-EN-P - January 2007
Chapter
6
Develop Applications
Introduction This chapter explains how to develop applications.
Additional Resources
For additional general information, consult these publications:
•
Logix5000 Controllers Common Procedures Programming
Manual, publication 1756-PM001.
•
Logix5000 Controllers Design Considerations Reference Manual,
publication 1756-RM094
Manage Tasks
A Logix5000 controller lets you use multiple tasks to schedule and
prioritize the execution of your programs based on specific criteria.
This multitasking allocates the controller’s processing time among the
different operations in your application.
•
The controller executes only one task at a time.
•
One task can interrupt another execution and take control.
•
In any given task, only one program executes at a time.
Topic Page
Manage Tasks 67
DevelopPrograms 68
Organize Tags 72
Select a Programming Language 73
Monitor Controller Status 75
Monitor Connections 76
Select a System Overhead Percentage 79