Nematron Pointe Controller - Manual (Page 165)

Pointe Controller User Guide Chapter 5: Developing Controller Programs
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5.8 Building and Editing Ladder Diagrams
A Ladder Diagram is a program component written using traditional Relay Ladder
Logic. The ladder is made up of sequential rungs, and each rung is made up of
sequential function blocks.
Ladders are executed from top to bottom, one rung at a time.
5.8.1 Creating a new Ladder Diagram
To create a new Ladder Diagram:
3. In the Project Workspace pane, select Ladder Diagram.
4. Click the New Object tool in the Framework Editor toolbar, or choose
New from the File menu. A new Flow Chart with a default name
(LadderN) will be added to the project hierarchy.
To open a Ladder Diagram for editing, simply double-click on it or select the
diagram and click the Open Object tool in the Framework Editor toolbar. When
you open a diagram, its editor window will appear in the Object Editor pane.
Saving a Flow Chart
All program objects are saved automatically whenever you close them. However,
you can save a Ladder Diagram while it’s open by clicking the Save Object or
Save All Objects tool in the Framework Editor toolbar.
Deleting a Flow Chart
You can delete Ladder Diagram in the same place you open them: the Project
Workspace pane. To delete a Ladder Diagram:
4. Close all open Flow Charts, Ladder Diagrams, and Logic Memory tables.
5. Select the desired Ladder Diagram in the Project Workspace pane. (You
may need to expand the hierarchy to select it – double-clicking expands it,
double-clicking again collapses it.)
6. Click the Delete Object tool in the Framework Editor toolbar, or choose
Delete from the Edit menu.
NOTE: Before deleting a Ladder Diagram, PointeControl will ask for a
confirmation.