PLC's and ladder diagrams

[Guyute]

I am lookiing for a book or program to help me understand PLC's and more importantly read ladder and wiring diagrams. I am getting ready to do a large waste water plant and although I wont be programming anything there will be a lot of control work. Any suggestions would be great.
Thanks

 

[Benton]

try this site out...... I really found it to be helpful when it comes to PLCs


www.interconnectingautomation.com

 

[ptonsparky]

Plcs.net