Delta Electronics DVP15MC11T User Manual

Chapter 7 Introduction of Axis Parameters
7
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○
3E A The controller will execute the system processing if there is no other task after the execution of
the freewheeling task is completed.
A
○
4E A The execution of the freewheeling task continues since the high-priority cyclic task request has
not arrived.
A
○
5E A The cyclic task interrupts the freewheeling task execution and the controller executes the cyclic
task because of the arrival of the high-priority cyclic task request during the execution of the
freewheeling task.
A
○
6E A The controller continues to execute the part of the low-priority freewheeling task, which has not
been executed yet when the execution of the cyclic task is completed.
A
○
7E A When the execution of the freewheeling task is completed, the controller executes the system
processing due to no other task request.
A
○
8E A When the system processing is completed, the execution of the freewheeling task continues due
to no high-priority cyclic task request.
 When three tasks are executed in mixture (Event task, Cyclic task and Freewheeling task)
Task trigg ered by
eve nt
( )P rio rit y 1
Syst em
processing
Priority
High
Low
IO
User
program
IO
User
program
Freewheelin g task
( )Priority 2
Task execution
condition met
Task execution
finished
Cyclic task
(Priority 3)
User
program
Pause
Pause
The event task has not been triggered
Task exe cution time
Task execution
finished
Task execution
condition met
IO
User
program
Time interval between tasks Time interval between tasks
IO
User
program
System
processing
IO
User
program
Task execution time
IO
User
program
IO
User
program
Task execution
condition met
Task execution
finished
Task execution
condition met
Pause
Task
execution
finished
Task execution
condition met
Task execution
finished
Task execution
condition met
Task execution
finished
Task execution
condition met
Tas k execution tim e
Task execution time
Task execution time
Time interval between tasks
Syste m
proce ssin g
System
processing
1 2
3
4 5
6
8 9
10
11
12
7
A
○
1E A When the conditions for execution of the freewheeling task and cyclic task are both met, the
freewheeling task is executed first because the priority of the freewheeling task is higher.
A
○
2E A The cyclic task execution starts when the freewheeling task execution is completed.
A
○
3E A When the cyclic task execution is completed, the controller executes the system processing due
to no other task request.
A
○
4E A The freewheeling task is executed when the system processing is completed.
A
○
5E A When the freewheeling task execution is completed, the controller executes the system
processing due to no other task request.
A
○
6E A The freewheeling task is executed when the system processing is completed.
A
○
7E A The freewheeling task execution continues because the freewheeling task has a higher priority
than the cyclic task although the execution condition for the cyclic task is met. And the cyclic task
waits to execute.
7-5

Delta Electronics DVP15MC11T Specifications

General

Brand	Delta Electronics
Model	DVP15MC11T
Category	Controller
Language	English