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Programmable Logic Controller & Microcontroller Paper May 2017

PROGRAMMABLE LOGIC CONTROLLER AND MICROCONTROLLERS 6TH Exam/Elect./EEE/5228/May 2017

PROGRAMMABLE LOGIC CONTROLLER & MICRO-CONTROLLER MAY 2017                                           SECTION-A

Q1. Do as directed.                                                                                                                     10×1.5=15

  1. PLC is a Programmable Logic Controller.

  2. Scan Cycle Consist of input scan, executing program(s), and output scan.

  3. A……….. will start timing the delay zero each time.

  4. “ToolTip” which describes the  Function will check to see if a value is between two Limits.

  5. Ladder diagram is a representation of the Operational logic of a circuit.

  6. PSW stands for Program Status Word.

  7. A HIGH, on which pin resets the 8051 microcontroller is RST 

  8. 8051 is a 8 bit Microcontroller.

  9. Assembler are translated by assembler into machine Code.

  10. 8051 micro controller has 32 I/O pins.

          SECTION-B

Q2. Attempt any five questions.                                                                    5×6=30

  1. What are the advantages of PLC system over the traditional hard wired control system?

  2. Explain basic operation and principle of a PLC ?

  3. With the help of pin diagram, explain the function of each pin of PIC microcontroller ?

  4. Write a ladder program, when start push switch (IN001) is pressed, motor A (CR001) turns ON- when stop push switch (INoo2) is pressed, motor A turns OFF and motor B (CR004) turns ON. Motor B should turns OFF automatically after 15 seconds.

  5. Differentiate between microprocessor and microcontroller ?

  6. Explain addressing modes available in in 8051 ?

  7. Explain function of bits of SCON register ?

  8. Explain the applications of microcontrollers ?

   SECTION-C

Q3. Attempt any three questions.                                                      3×10=30

        Q3. Draw and explain the block diagram of a PLC, Explain the function of each building block.

        Q4. Draw the pin diagram of 8051 and explain function of each pin.

        Q5. Explain the instruction sets, give two examples in each:

  1. Basic instructions b) Timer instructions

        Q6. Explain different modes of timer operation in 8051.

        Q7. With the help of suitable diagrams explain key board interfacing with 8051.

PROGRAMMABLE LOGIC CONTROLLER & MICRO-CONTROLLER MAY 2017 DIPLOMA SOLVED PAPER

Section a FILL IN THE BLANKS PROGRAMMABLE LOGIC CONTROLLER & MICROCONTROLLER MAY 2017

PLC is a Programmable Logic Controller.

Scan Cycle Consist of input scan, executing program(s), and output scan.

A……….. will start timing the delay zero each time.

 

“ToolTip” which describes the  Function will check to see if a value is between two Limits.

 

Ladder diagram is a representation of the Operational logic of a circuit.

 

PSW stands for Program Status Word.

Related Post

 

A HIGH, on which pin resets the 8051 microcontroller is RST 

 

8051 is a 8 bit Microcontroller.

 

Assembler are translated by assembler into machine Code.

8051 micro controller has 32 I/O pins.

PROGRAMMABLE LOGIC CONTROLLER AND MICROCONTROLLERS 6TH SEMESTER Exam EEE/EE/5228/MAY 2017 Click Here

Section B :PROGRAMMABLE LOGIC CONTROLLER & MICROCONTROLLER MAY 2017

Advantages of PLC system over the traditional hard wired control system

 

Basic operation and principle of a PLC 

 

ladder program, when start push switch (IN001) is pressed, motor A (CR001) turns ON- when stop push switch (INoo2) is pressed, motor A turns OFF and motor B (CR004) turns ON. Motor B should turns OFF automatically after 15 seconds.

 

Comparison Microprocessor and Microcontroller 

 

Addressing modes available in in 8051 

 

Function of bits of SCON register 

Applications of microcontrollers 

PROGRAMMABLE LOGIC CONTROLLER AND MICROCONTROLLERS 6TH SEM EEE/5228/MAY 2017 Click Here

Section c PROGRAMMABLE LOGIC CONTROLLER AND MICRO-CONTROLLERS 6TH SEM MAY 2017 PAPER

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