This is the type of PLC that was used for this project. I really
like the Opto22. It used symbolic block diagrams, and although I
expected it to be buggy (Like some enviroments I have used), it was not
but was instead robust and easy to use. This PLC program also had
some OptoBrand Script code and interfaced wtih a remote PC computer
that ran Linux and contained a front-end written with Nokia's QT.
Qt is an easy-to-use library that is available for Linux, Macintosh and
Windows.
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