Dunning, Garry <br/><br/>
Introduction to programmable logic controllers 

 - 3 
 - New Delhi  Cengage Learning  2006 
 - 315p.  
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9788131503027 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer -- Programmable logic controllers<br/>IEC 1131-3 programming standard<br/>Logic circuits -- Computer<br/>Programmable logic controllers<br/>RS-232C communication standard<br/>SLC 500 timers<br/>Timer and counter instructions