Beckhoff twincat

Hello all,

I am wokring on beckhoff industrial PC system in which program were made in twincat 2.9 software..
I am in search of good literature on twincat programming basics and system manager.
If anyone have something about twincat programming basics than please share the link..

See here: http://infosys.beckhoff.com/content/1033/tcquickstart/html/note.htm?id=17544

Good luck!

search for iec1131 or 61131 or 61131-3
and you can ask here obvious.
twincat is a codesys variant sdo free download codesys it has a good help file.