Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (EEE)- Electrical And Electronics Engineering 2020 December 7th Sem 74092 Microcontroller And Plc Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech.(EE) PT (Sem.?7)
MICROCONTROLLER AND PLC
Subject Code : BTEE-604
M.Code : 74092
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
Give any two differences between a microprocessor and a microcontroller.
2.
List out the Features of 8051 Microcontroller?
3.
What is a program counter?
4.
What is a stack pointer?
5.
List some 8051 Microcontroller applications in embedded systems?
6.
Define clock cycle.
7.
Define machine cycle.
8.
What do you mean by serial data transmission?
9.
Differentiate between PLC and hardwired system.
10. Implement AND gate using ladder logic programming.
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SECTION-B
11. With the help of a suitable diagram explain the architecture of 8051 microcontroller.
12. Write a program to transfer value 41H serially (one bit at a time) via pin P2.1. Put two
highs at the start and end of the data. Send the byte LSB first.
13. Write a program to find the number of zeros in register R2.
14. Explain how LCDs and keyboards can be interfaced with 8051 microcontroller?
15. Develop a ladder logic that will allow three switches in a room to control a single light.
SECTION-C
16. a) What is an interrupt? List various types of interrupts available in 8051 Microcontroller?
b) Write a short note on "RAM allocation in 8051 microcontroller".
17. a) Explain Program Status Word (PSW) special function register.
b) Write a short note on PLDs and FPGA.
18. Draw the block diagram of a programmable logic controller and explain each block in
detail.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 13 February 2021