Continuous Function Chart (CFC) and Page-Oriented CFC

Viewed from the outside, a function block diagram consists of inputs and outputs between which data is processed. Internally, a function chart consists of blocks and their connections that represent data (signals) and show how allocation operators function in ST. The overall behavior is composed of the behavior of the inserted function blocks that call other programming blocks or library blocks.

Code in the Continuous Function Chart (CFC) implementation language primarily illustrates the flow of data through the system. A Continuous Function Chart is therefore also referred to as a block diagram.

In the page-oriented CFC editor, you can connect programming blocks together and create descriptive function charts distributed over pages. The page-oriented editor behaves like the CFC editor with additional functionality:

• Create pages
• Setting the page size
• Copying and pasting pages in the page navigator
• Copying the implementation of a programming block of the implementation language CFC and pasting it into a page
• Clear and space-saving arrangement of inputs, outputs and connection marks in the margins
• Connection across pages with connection marks