PROGRAMMABLE LOGIC CONTROLLER (PLC)
Course Code BEC456B
CIE Marks 50
Teaching Hours/Week (L: T:P: S) 1:0:0:0
SEE Marks 50
Total Hours of Pedagogy 14 to 16 hours
Total Marks 100
Credits 01
Exam Hours 01
Examination type (SEE) Theory
Module-1
Introduction: Programmable logic controller (PLC), role in automation (SCADA), advantages and
disadvantages, hardware, internal architecture, sourcing and sinking (Textbook 1: 1.1 to 1.4)
I/O devices and Processing: list of input and output devices, examples of applications. I/O processing,
input/output units, signal conditioning, remote connections, networks, processing inputs I/O addresses.
(TextBook1: 2.1 to 2.3 and 4.1 to 4.7).
Module-2
Programming: Ladder programming- ladder diagrams, logic functions, latching, multiple outputs, entering
programs, functional blocks, program examples like location of stop and emergency switches. (TextBook1:5.1 to 5.7).
Module-3
Programming Methods: Instruction Lists- Ladder programs and Instruction lists, Branch codes,
Programming Examples- Signal lamp-valve operation task. Sequential Function Charts- Branching and
convergence. (TextBook1: 6.1 to 6.3).
Module-4
Internal Relays: ladder programs, battery-backed relays, one-shot operation, set and reset, master control
relay (TextBook1: 7.1 to 7.6).
Timers and counters: Types of timers, ON and OFF- delay timers, pulse timers, forms of counter,
programming, up and down counters. (TexBook1: 9.1 to 9.6).
Module-5
Shift register and data handling: shift registers, ladder programs, registers and bits, data handling,
arithmetic functions. (TextBook1: 11.1 to 11.2 and 12.1 to 12.3)
Suggested Learning Resources:
Textbooks:
1. Programmable Logic controllers-W Bolton, 5th edition/6th edition, Elsevier- newness, 2009/2015.
2. Programmable logic controllers - principles and applications”-John W. Webb, Ronald A Reiss, Pearson
education, 5th edition, 2007.
Reference Books:
1 Programmable Logic Controllers”- E. A Paar, 3rd Edition, An Engineers Guide. Newness, 2003.
2 “Introduction to Programmable Logic Controller”- Garry Dunning, 3rd Edition, Thomson Asia Pte Ltd.
Publication, 2006
3 “PLCs & SCADA - Theory and Practice”- Rajesh Mehra, Vikrant Vij, 2nd Edition, Laxmi publication, 2017
4 “PLC Programming for Industrial Automation”- Kevin Collins, 1st Edition, Kindle, 2016
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