Build and Test a Composite Function Block Type

Start the FBEditor. Create a new composite FB type in the editor by: Opening a file containing an existing composite function block type, for example the LED_HMI FB type or the X2Y2.fbt file in the src\student folder; or Clicking the New... => FB Type => Composite menu item as shown at right. Edit the function block's elements: Edit the function block's properties Edit the function block's interface. Edit the FB body by clicking on the FBD element with the function block's type name in the Navigation area and editing the graphic layout of the FBD in the Worksheet/Viewport area. Edit the service sequences (if any). When your editing is complete, save your work with the Save As... button. It is a good idea to save your work from time to time while editing, too! Generate and compile a Java® source file with the Save As... button. Test the FB type by clicking Run button. In the test window, you can set or clear the values of the inputs, click on event input buttons and observe the resulting event and variable outputs. If you change the code of the block and recompile, you will have to exit the FBEditor application and restart it in order to force a reload of the class file.