JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives

Student will be able to

• 1. It is to provide and ensure a comprehensive understanding of using personal computers in measurement and control instrumentation.
• 2. Learn the process of collecting information/ data through PC from real world sources.
• 3. Learn remote and networked data acquisition and operating system.
• 4. Learn programmable logic controllers, and its application.

Course Outcomes

After completion of the course the student is able to:

• 1. Understand the main functional units in a PC and be able to explain how they interact. They should know different bus types, and on this basis be able to distinguish account for different generations of PCs.
• 2. Understand the basics of PLC and its programming.
• 3. Apply different PLC functions to applications.
• 4. Learn the basics of SCADA.

UNIT - I

Review of Computer Instrument Communication: Personal Computer, Overview of operating System, I/O Ports, Plug-in-slots, PCI bus, Operators Interface. Computer Interfacing for Data Acquisition and Control – Interfacing Input Signals, Output system with continuous actuators. Data Acquisition and Control using Standard Cards: PC expansion systems, Plug-in Data Acquisition Boards; Transducer to Control room, Backplane bus – VXI.

UNIT - II

Programmable logic controller (PLC) basics: Definition, Overview of PLC systems, input/output modules, Power supplies and Isolators. Basic PLC programming: Programming On-Off inputs/ outputs. Creating Ladder diagrams, Basic PLC functions, PLC Basic Functions, register basics, timer functions, counter functions.

UNIT - III

PLC intermediate and advanced functions: Arithmetic functions, Number comparison functions, Skip and MCR functions, data move systems. Utilizing digital bits, sequencer functions, Matrix functions. PLC Advanced functions: Analog PLC operation, Networking of PLC,

UNIT - IV

Application of PLC: Controlling of Robot using PLC, PID control of continuous processes, Continuous Bottle-filling system, Batch mixing system, 3-stage air conditioning system, Automatic frequency control of Induction heating Related Topics: Alternate programming languages. Auxiliary commands and functions. PLC installation, troubleshooting and maintenance. Field bus: Introduction, concept. HART protocol: Method of operation, structure, and applications. Smart transmitters, smart valves and smart actuators.

UNIT - V

Scada Basics: Computer Process interface for Data Acquisition and control – Computer control loops. – Supervisory Digital Control (SCADA) - introduction and brief history of SCADA – SCADA Hardware and software – Landlines for SCADA – use of modems in SCADA – SCADA with LAN

R18 B.TECH EIE III YEAR

TEXT BOOKS

• 1. Programmable Logic Controllers – Principles and Applications, John. W. Webb Ronald A Reis, Fourth edition, Prentice Hall Inc., New Jersey, 1998.
• 2. Computer Control of Processes – M. Chidambaram. Narosa 2003

REFERENCES

• 1. Introduction to Programmable Logic Controllers - Gary Dunning Thomson Delmar Learning Second Edition Second reprint 2003.
• 2. PC Based Instrumentation and Control Third Edition by Mike Tooley; Elsevier.
• 3. PC Interfacing and Data Acquisition Techniques for Measurement, Instrumentation and Control. By Kevin James; Elsevier.
• 4. Practical Data Acquisition for Instrumentation and Control Systems by John Park and Steve Mackay.
• 5. Programmable Logic Controllers, Second edition, Frank D. Petruzella, Mc Graw Hill, New York, 1997. R18 B.TECH EIE III YEAR