At a Glance

For each DFB instance, the Function Blocks register tab in the data editor provides one line of information by default: Instance name, DFB type, comment, etc. From this screen you can also:

NOTE: The DFB instance structure cannot be modified using the Function Blocks register tab (name and type of the elements). However, the attributes of the instance itself can be modified (name, type and comments of the DFB instance).

View the elements of a DFB instance

To view the elements of a DFB instance, you must do the following:

Step

Action

1

Open the Function Blocks register tab in the data editor.

2

Open the DFB instance of which you want to view the elements.

View the elements of a DFB instance

To view the attributes of a DFB instance, you must do the following:

Step

Action

1

Either:

Open the Function Blocks register tab in the data editor.

  

Either:

Open the DFB instance to gain access to its elements.

2

Right-click on the DFB instance whose attributes you wish to view.

Result: A shortcut menu is opened.

Right-click on the element whose attributes you wish to view.

Result: A shortcut menu is opened.

3

Activate the Properties command.

Result: The related dialog box is opened.

Attributes list

The specific DFB instance attributes are:

  • Instance name,

  • Comments,

  • Type,

  • Category,

  • Size,

  • Diag,

  • Used (frequency of use in program),

  • Customize.

NOTE: All the DFB instance attributes are available in read/write mode except the Category and the Used attributes of instances, which are available in read only.

Sorting DFB instances

To change the classification criteria, do the following:

Step

Action

1

Open the Function Blocks register tab in the data editor.

2

Click on the title of the column that you want for the first criteria.

Result: The DFB instance classification criteria become:

  • Firstly, a classification by alphabetical order in the column on which you have clicked,

  • then, a classification by alphabetical order by name.

Note: The DFB instances are classified by name alphabetically as default.