readme.txt

电路仿真程序 Classic Ladder is coded 100％ in C.It can be used for educational purposes or anything you wan

CLASSIC LADDER PROJECT
Copyright (C) 2001 Marc Le Douarain
[e-mail]
http://www.sourceforge.net/projects/classicladder
http://www.multimania.com/mavati/classicladder
February 2001

Version 0.5.2 (26 January 2002)
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A project to have a free ladder language in C.
Generally, you find this type of language on PLC to make the programs.
It allows you to realize little programs or bigger in an electric way.

This project is released under the terms of the LGPL licence.


GENESIS...
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I decided to program a ladder language only for test purposes at the start,
in february 2001. It was planned, that I would have to participate to a
new controller at work. And I was thinking that to have a ladder
language in it could be a nice option to considerate. And so I started to
code the first lines for calculating a rung with minimal elements and
displaying dynamically it under Gtk, to see if my first idea to realise all
this works.
And as quickly I've found that it advanced quite well, I've continued with
more complex elements : timer, multiples rungs, etc...
Voil