Controlling the Flow of a Function Block Diagram
When you have added the various conversions, functions, function blocks etc. that form your Function Block Diagram, you need to make connections. The connections define how the various components relate to one another.
When making connections, you may need to move items around the diagram. To do this, simply select the item, then drag it to the required location before releasing the left-hand mouse button.
For more information on connections, refer to: