Chapter 14 Sequential Function Charts Table of Contents 14.1 Knowing Sequential Function Charts ............................................ 14-2 14.1.1 Structure of a Sequential Function Chart ..................................... 14-2 14.1.2 Principle of a Sequential Function Chart ...................................... 14-3 14.2 Sequential Function Chart in ISPSoft ........................................... 14-4 14.2.1 Steps and Actions .................................................................... 14-4 14.2.2 Transitions .............................................................................. 14-7 14.2.3 Simultaneous Divergence and Divergence of Sequence Selection ....
14-9 14.2.4 Simultaneous Convergence & Select Convergence ...................... 14-10 14.2.5 Jump ................................................................................... 14-12 14.2.6 Qualifier of an Action .............................................................. 14-15 14.2.6.1 Qualifier Types ................................................................ 14-15 14.2.6.2 Important Points About Qualifying an Action ........................ 14-20 14.2.7 Initial Step ............................................................................ 14-21 14.2.8 Internal Property ...................................................................
14-22 14.2.8.1 Step Property ................................................................. 14-22 14.2.8.2 Action and Transition Property ........................................... 14-26 14.3 Create SFC in ISPSoft ................................................................. 14-32 14.3.1 Editing Environment ............................................................... 14-32 14.3.2 Creating and Managing Actions and Transitions .......................... 14-34 14.3.3 Adding a Step ....................................................................... 14-36 14.3.4 Connecting a Transition in Parallel ............................................
14-37 14.3.5 Connecting a Step in Parallel ................................................... 14-38 14.3.7 Step Structure – Select Divergence & Simultaneous Convergence . 14-41 14.3.6 Step Structure - Simultaneous Divergence & Select Convergence . 14-40 14.3.8 Inserting a Jump Point ............................................................ 14-42 14.3.9 Assign Steps and the Transitions .............................................. 14-43 14.3.11 Assigning Actions / Fold the Action Table ................................... 14-44 14.3.10 Specifying an Initial Step ........................................................
14-44 14.4 Sequential Function Chart Examples .......................................... 14-48 14.4.1 Example Descriptions ............................................................. 14-48 14.4.2 Planning Hardware ................................................................. 14-50 14.4.3 Planning a Program ................................................................ 14-50 14.4.4 Creating a Program ................................................................ 14-51 14-1