C&I Structure

So far, I had gone to control room and PCC. These places had a lot of cabinet which control the plant. Today, I had the chance to learn about details of the control and instrumental structure.

The operation condition of the plant is important for the operator to monitor it from time to time, therefore, transducers or sensors like magnetic flowmeter, DP transmitter, RTD, thermocouple, and so on, are connected to every machines in the plant. All these transducers then will convert the paramenters like temperature, pressure, flow rate and so on, into electrical form, then sent it to a card in a cabinet which called the ET 200. Later it will send to PCC automation cabinet, then the data will pass into fiber optic cable and transmit to control room’s busses cabinet. After passing through several server, data will then send to computer to display. This is the general idea of how the data is being processed.

After knowing all this, I realize that, to design a control and instrumental structure is very complicated and it involve a lot of knowledge like mechanical, micro p, digital logic, and so on. This is a good experience for me to know the application of my knowledge learn during university.