Chapter 15 Continuous Function Charts Use logic gates such as AND gate and OR gate to link the objects to create various complicated loops, as the following example shown. 15.2.2.1 Inserting Nodes or Gates There are 2 methods to insert a node, choose one for insertions. Method I: use the icons from the toolbar (1) Click the icon from the toolbar, as the image shown below. (2) Click the mouse on where you’d like to put the nodes/gates in the editing area, as the image shown below. 15-7