how to trouble shoot with ladder diagrams? and an example.
Ideally you should get a programming manual for the PLC control you intend servicing.
Also a knowledge of boolean arithmetic would be good.
I believe there are many examples and short tutorials on the web.
A ladder rung consists of Boolean expressions that progress from left to right rail and the result of the Boolean logic culminates in an output coil, timer, counter, register bit.
Last edited by Al_The_Man; 10-17-2011 at 05:36 PM.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”