Sequential Function Charts represent a sequence of Logic. They allow you to create a Logic program that defines system behavior that occurs in steps, depending on specified conditions.
One of the main advantages of Sequential Function Charts (SFCs) is that only the active parts of the SFCs are executed, and you can easily see which parts are inactive. This means it is easy to determine what condition caused a step to occur.
The following sections explain the basic concepts of Sequential Function Charts and explain how to set up an SFC. For more information, see the topics that are listed in the gray footer section at the bottom of this topic. Select the relevant entry to display the topic that you require.
You must have the required user permissions on the database items that a Logic program references, and (if applicable) the Configure Extended Logic feature enabled in order to successfully compile, execute, or save a Logic program (see User Permissions Required for Working with Logic Programs).
For information on the properties of the Sequential Function Chart database items, see Logic Program Properties and Values.