Assigning a program to a task

Programs are automatically assigned to a task when you create a project, or they can be assigned afterwards via the task list.

In the procedure below, the program is controlled cyclically and is therefore assigned to a program task.

Open Tasks in Project pane
Open Programs
Under Program name, select an empty field to open the Program selection dialog
Under Programs, select the desired program
OK

You may assign one or several POUs to a task. If you assign several POUs, they will be processed according to their input sequence. During compilation, the programs are treated as one single program and are downloaded into the PLC.
Under Comment, enter a text, if desired

NOTE

SFC programs (SFC POUs) must always be entered one after the other in the task list. No other POU types are allowed between them.
To deactivate/activate a program within a task for code generation, select the program and then Edit > Deactivate/activate or use the context menu.

To view the task properties, use Object > Properties... or <Alt>+<Return>. The dialog contains the following items:

Event

This field displays the event assigned to the task (or TRUE with cyclic processing). The event is directly linked to the task.
Interval

For time-driven tasks (periodic interrupts), this field displays the interval after which the POU is reloaded. You can change the interval by entering a time value.

NOTE

The interval must be entered in IEC format: e.g.: T#10s
Priority

In Control FPWIN Pro7, the priority for all tasks is fixed at 31 and cannot be changed. Interrupt tasks are processed in the order displayed in the task list, i.e. interrupt 0 has a higher priority than interrupt 1, etc.