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Copyright (C) 2018 by Luis Paulo Laus, <laus@utfpr.edu.br>
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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
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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.
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