PLC Doubts

Hello,
Kindly send me details about Subroutines, Events, Edrums, Drums,Global data. with appropriate examples.give me details sa to when do we need these commands while programming , kindly send me sample ladder diagrams to learn these commands in a simple manner
Regards ,
Naleen

thats a lot of send me's. Its in the textbooks or should be.

This is a particpating forum...ie ask a question, we answer with a question to get you started on your quest.

You have a large quest, read the book(s) first then post a question