Links
Links to some of our favorites
Proud to be mentioned in a very good magazine and a great article by Dave Harrold http://www.controlglobal.com/articles/2009/PLCProgramming0901.html
A PLC programming book by Hugh Jack (this is a must read and its free) http://engineeronadisk.com/
Free PLC Simulator, learn the basics of PLC programming http://www.plcfiddle.com/#
Spread the word Manufacturing Day - Join in educating America manufacturing http://www.mfgday.com/
Programming and Automation forums
Information Resources and free material
http://www.theplcguy.com Our friend Bernie
http://engineeronadisk.com/ A ton of free engineering information
http://www.contactandcoil.com/ Blog on Automation and PLC Programming
A Practical Guide to Programmable Logic Controllers Free programming book
Lessons In Industrial Instrumentation Not for the beginner but a good read (Large PDF)
https://accautomation.ca/ A lot of information about PLC's and PLC programming specializing in Automation Direct
www.skycad.ca Electrical drawing software (CAD software) with a Free standard license
Legacy Allen Bradley PLC upgrades
http://softplc.com/products/migrations/oldtopdoc/ If your looking to upgrade some old Allen Bradley PLC's
Recommended Training courses
http://www.troubleshootingbootcamps.com/ Electrical and PLC Training by Randy Craps
Engineers without borders
http://www.ewb-international.org/ International
Magazines with engineering help
http://www.controlglobal.com/articles/2009/PLCProgramming0901.html
http://garyandersonbooks.com/learn-plc-programming-robotics-cnc-concepts/ Programming and Troubleshooting Books
About PLC's
The first PLC was in 1970 at the GM Ypsilanti plant, see here for a good read https://www.controleng.com/articles/inside-the-competition-for-the-first-plc/
YouTube Videos
http://www.youtube.com/user/PLCCable