Condition for using the FBD-editor

You have already installed the required license.

Representation of logic or FBD-code

The logic or FBD-code is displayed as graphical elements in the appropriate FBD-editor:

If the FBD-editor and its elements are displayed differently in your logi.CAD 3 version, the system integrator has changed the styles for the FBD-editor. In this case and for information about the changed representation, please contact your system integrator.

logi.cals recommends that you and/or your system integrator do not use yellow shades when designing FBD-elements because the color "Yellow" is used for tracking safe signals when developing safety-related applications. logi.CAD 3 does not check if colors are already used elsewhere. So the use of the yellow shades by you and/or your system integrator could have the consequence that "yellow" might also identify a non-safe logic as well.

Open the graphical FBD-editor as follows: Double-click an already created FBD-object. Alternative: Open the context menu for the FBD-object and select Open With – FBD-Editor.
See "Components for FBD-editor" and " FBD-elements in drawing field " for more information on the content.

Specific actions/elements within FBD-editor

• Creating POU in FBD

• Important features of FBD-editor

  • Content assist in the FBD-editor

  • Automatic routing of lines

  • Updating existing calls for changed interfaces

  • Highlighting the errors and warnings in the FBD-editor

  • Refactoring in FBD-editor

  • Autoscrolling within the FBD-editor

  • Color and style for FBD-elements determined by data type

  • Highlighting safe logic in the FBD-editor

  • Blocks for safe logic

• Reserved keywords in FBD

• Supported data types (in FBD)

• Actions within FBD-editor

  • Creating FBD-logic

    • Declaring variables in FBD

    • Declaring external variables by using a list of the content assist in FBD

    • Creating value fields and calls

      • Creating value fields or calls of blocks by using the content assist in FBD

      • Creating a call of a block by dragging from project explorer

      • Creating value fields and function block instances by dragging elements from the list of declared variables

    • Connecting FBD-elements by lines

    • Creating a line fork (incl. a connection point)

    • Negating inputs and outputs

    • Saving FBD-logic

    • Closing FBD-editor

  • Modifying variables (FBD)

  • Modifying FBD-logic

    • Changing the name of POU in FBD

    • Showing or hiding EN and ENO within the FBD-editor

    • Showing/hiding not connected in-/outputs

    • Showing/hiding and editing the instance names of blocks

    • Replacing the call of a block

    • Inserting a call of a block or value field into existing lines

    • Docking to FBD-elements

    • Connecting an already connected line to a different FBD-element

    • Editing expression in value field

    • Creating or editing comment fields in FBD

    • Using dynamic text within comment fields

    • Creating or editing properties fields in FBD

    • Creating or editing connectors and continuations in FBD

    • Creating or editing OLT-fields in FBD

    • Setting breakpoints for the calls of blocks and value fields

    • Showing or hiding the execution order

    • Undoing or redoing changes in FBD-editor

    • Selecting multiple FBD-elements

    • Copying, cutting, pasting FBD-elements

    • Deleting FBD-elements or already declared variables

    • Moving FBD-elements

    • Aligning FBD-elements

    • Resizing FBD-elements

  • Namespaces in FBD

    • Declaring a POU within a namespace

    • Using the list of the used namespaces

    • Deleting/removing namespaces for a POU

  • Creating SFC networks in FBD

    • Creating or editing initial steps or steps in FBD

    • Creating or editing transitions in FBD

    • Creating or editing action blocks in FBD

    • Creating step sequences in FBD

  • Changing position or view in FBD-editor

    • Finding references (= usages) for an element

    • Going to the declaration of a block or variable

    • Going from continuation to connector and reverse

    • Going to a different page

    • Quickly going to a faulty FBD-element

    • Moving and scrolling within the FBD-editor

    • Zooming in or out

• Configuring FBD-editor

  • Inserting new pages in the drawing field

  • Entering or editing a page name

  • Showing/hiding the page coordinates

  • Changing the page format for the drawing field

• FBD-elements in drawing field

  • Calls of blocks: functions or function blocks

  • Value fields

  • Comment fields

  • Properties fields

  • Lines

  • Connectors and continuations

  • OLT-fields in FBD

  • Connection points

  • SFC elements in drawing field

    • Initial steps and steps in FBD

    • Transitions in FBD

    • Action blocks in FBD

• Evaluation of networks in FBD and the FBD-elements

  • Order of networks in FBD

  • Order of statements within an FBD-network

  • Evaluating SFC elements

  • Behavior of the action qualifiers for SFC elements

• Components for FBD-editor

  • Drawing field for FBD-editor

  • List of the declared variables (FBD)

  • Tab "Namespaces"

  • Overview for FBD-editor

  • Statusbar for FBD-editor