"Powered By Ideas, Ideals & Idealism"… A Blog By Prerna Jain !!
This article demonstrates ladder logic in PLC.
The ladder diagram has and continues to be the traditional way of representing electrical sequences of operations. These diagrams represent the interconnection of field devices in such a way that the activation, or turning ON, of one device will turn ON another device according to a predetermined sequence of events.
Full article at EEP.