Introduction

I/O event sections can be created in offline and online mode.

Information for creating LD sections

An LD section contains 11-63 columns and 17-3998 rows.

The number of columns is set in the Tools > Project Settings dialog box, in the Program > Languages > LD tab, in the Number of Columns text box.

This setting only applies to sections to be created, not existing sections. Always define the number of columns before you create a new LD section.

(The number of rows and columns can be changed during the creation of section contents.)

Information for creating FBD sections

An FBD section contains 86,400 grids (number of rows x number of columns).

The number of rows and columns is set in the Tools > Project Settings dialog box, in the Program > FBD tab.

This setting only applies to sections to be created, not existing sections. Always define the number of rows and columns before you create a new FBD section.

(The number of rows and columns can be changed during the creation of section contents.)

Creating I/O event sections

Creating I/O event sections:

Step

Action

1

Left-click on the I/O Events directory of the Events task, or place the cursor arrow on this directory.

2

Use the right mouse button or the Shift+F10 key combination to select the New Event Section menu command in the context menu.

Result: The New dialog box for the section opens.

3

Enter the number of the I/O event in the I/O Event number list.

The maximum number of I/O events depends on the selected CPU, see also the section on Tasks and Processes.

4

Select the programming language of the section.

5

Select the type of access protection if necessary from the Protection list:

  • None

    No protection

  • Read-Only

    Write protection

  • No read & write

    Read and write protection

See also section Program Unit, Section and Subroutine Protection.

6

Select the functional module to which the section is allocated from the Localization tab if necessary.

See also section Functional modules

7

Enter a comment in the Comment tab if desired.

8

If you wish to create additional sections, confirm the entries with Apply . In this case, the New dialog box remains open and you can generate additional sections.

If you do not wish to create additional sections, confirm the entries with OK . In this case, the New dialog box closes and the generated section opens automatically.

Displaying or modifying section properties

Displaying or modifying section properties:

Step

Action

1

Left-click on the desired section, or place the cursor on this section with the arrow keys.

2

Use the right mouse button or press Shift+F10 to select the Properties menu command.

Result: The Properties of dialog box for the section opens.

3

Implement the desired changes.

4

Confirm all entries with OK.

Importing/exporting sections

See sections: