Process Control Instrumentation

Question 1:

A programmable logic controller can be programmed using different programming languages. Describe any three of these languages in detail. Provide appropriate examples and illustrations.

Question 2:

Compare an ON-OFF controller with a PID controller in terms of their characteristics and operation. Provide examples of their industrial applications.

Question 3:

Compare a Proportional Controller with a Proportional-and-Derivative Controller in terms of their characteristics and operation. Also provide examples of their industrial applications.

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