Inserting FBD elements using an empty box - STEP 7

Requirement

A network is available.

Procedure

To insert FBD elements into a network using an empty box, follow these steps:

1. Open the "Instructions" task card.

2. Navigate to "General > Empty box" in the "Basic instructions" palette.

3. Use a drag-and-drop operation to move the "Empty box" element to the desired place in the network.

4. Position the cursor over the triangle in the top right-hand corner of the empty box.

   A drop-down list is displayed.

5. Select the desired FBD element from the drop-down list.

   If the element is an internal system function block (FB), the "Call options" dialog opens. In this dialog, you can determine if the data of the inserted element is to be stored in a single, multi or parameter instance. If you select "Single instance", you can find the new instance data block once it is created in the "Program resources" folder of the project tree under "Program blocks > System blocks". You can find multi-instances in the block interface in the "Static" section and parameter instances in the "InOut" section.

Result

The empty box is changed to the respective FBD element. Placeholders are inserted for the parameters.