Rockwell-automation Logix5000 Controllers Tasks, Programs, and Routine Bedienungsanleitung PDF herunterladen (Seite 27)

Manage tasks Chapter 1

2. Enter task information in the New Task dialog box.

Topic Description

Name Type a name for the task.

Description Type an optional description for the task.

Type

Choose Event for the task type.

Trigger Choose a trigger for the task.

Tag Choose a tag if the field is active for the selected trigger.

Execute Task If No Event Occurs Within Select the check box and type a time period that must elapse

before a task can run.

Priority Enter the task priority value.

Watchdog Type the watchdog time for the task.

3. Click OK.

Create a periodic task

A periodic task performs a function or functions at a specific rate.

Important:

Be sure that the time period is longer than the sum of the run times of all the programs assigned to the task.

• If the controller detects that a periodic task trigger occurs for a task that is already operating, a minor

fault occurs (overlap).

• Priorities and run times of other tasks may also cause an overlap.

Rockwell Automation Publication 1756-PM005-EN-P - October 2014 27

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 72 73

Keine Kommentare

Rockwell-automation Logix5000 Controllers Tasks, Programs, and Routine Bedienungsanleitung Seite 27