Copyright (C) 2018 by Luis Paulo Laus, ------------------------------------------------------------ The tikz-sfc package may be distributed and/or modified under the conditions of the LaTeX Project Public License, either version 1 of this license or (at your option) any later version. The latest version of this license is in: http://www.latex-project.org/lppl.txt and version 1 or later is part of all distributions of LaTeX version 1999/12/01 or later. Version: 1.0.1 Version date: 2018-12-15 ------------------------------------------------------------ Sequential Function Chart (SFC) describes the behaviour of a control program. It is derived from Petri Nets and GRAFCET. This package contains a set of symbols that simplifies the drawing of SFC diagrams with emphasis in readability and in agreement with the international standard IEC 61 131-3. It extends the TikZ-library circuits which defines general keys for creating circuits. All graphic elements of SFC are supported by tikz-sfc: steps (normal and initial), transitions, actions and actions qualifiers (with and without time duration) are supported. The placement of all actions associated with a step is done automatically. Comments can also be placed automatically in a suitable location near the element they refer to. The final appearance of each element can be fine-tuned individually or in group. ------------------------------------------------------------