INDUSTRIAL AUTOMATION

  1. a) List the major classifications of input/output (I/O) modules. [3] b) What is the timer instruction of a PLC? [3]
    1. Define the six basic COMPARE functions. [4]
    2. Differentiate between discrete and analog operation of a PLC. [4]
    3. Write DCS applications in power plants. [4]
    4. What is smart actuator? [4]
      5. Click here to join us on Social Media for getting instant update on every notice

                                     

                                                        PART–B (3x16 = 48 Marks)                

  1. a) Explain the advantages of PLC's over PC's. [8] b) Describe how an AC-in/DC-out power supply functions. Explain isolators. [8]

                                     

  1. a) List and describe eight major timing functions that are commonly used in circuits and processes.    [8]  b) Write a ladder diagram program for tank level control. [8]

                                     

  1. a) Explain (i) Sequencer functions (ii) Matrix functions. [8]  b) Describe the operation of the SKIP and MCR function. [8]

                                     

  1. a) Describe the typical PID functions. [8]  b) Differentiate between wide area networks and local area networks. [8]

                                     

  1. a) What are the differences between centralized control system and DCS? [8]  b) Explain the application of DCS in cement plants. [8]

                                     

  1. a) Explain the applications of HART protocol. [8] b) Write short notes on smart transmitters. [8]