I am looking for a good and all around resource to learn Ladder Logic. I have find bits and pieces of sample Ladder programs on the internet. Can anyone out there recommend all around great and helpful book, website, references, etc that will give me in details and lots of examples of various ladder logic samples used in automation and PID loops. I prefer a reference that also include in detail/ pictures of harware connected to a process so that I can visual see how ladder logic flows through process system.
Thank you so much

 

I found Frank D. Petruzella's PROGRAMMABLE LOGIC CONTROLLERS to be a good reference/book. The second addition includes Allen-Bradley PLC-5 and SLC-500 instruction set. It's based or uses AB instructions in its examples but does offer the fundamentals

 

You can visit this site

http://www.plcs.net/

It has a tutorial for most blocks and logics used in ladder programming. It even have animated tutorial on some logics..

a great site for learning. just click on the online tutorial on the site.

 

There is a free book: Automated Manufacturing System - A PLC Book. By Hugh Jack.
Go To:

http://www.eod.gvsu.edu/~jackh/books/plcs/

Great resource - written for students, being constantly updated. Website also refers to links that are very usefull and provide full powerpoint slides and answers to problems.

Guy

 

There is a great resource for learning ladder logic, go to:
http://www.ladder-logic.com/
Leroy