PART C
7. a. Describe the PLC operation?

b. Explain the different SCADA generations in detail
8.9. Explain the significance of IEC 61508
‏.م‎ With a neat diagram, explain about safety life cycle
c. mut are the advantages of PLC?
9.a. What is distributed confrol system? And what are it's typical applications?
b. Implement AND,NOT,OR and NAND logic in ladder diagram
c. Explain about IEC 61511

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