In the recent times, thermal power generation has under gone long process of modification right from its conventional working principles to automation using technology in the form of DCS, PLC, SCADA (Supervisory Control and Data Acquisition) etc. Power plants require continuous monitoring and inspection at frequent intervals. Moreover, they are found suitable for hands-on training of engineering and technology students and professionals in process control. Tank level control systems serve as essential components in most process plants and equipment used in the production of food and beverages, iron and steel, cement, petrochemicals, animal feeds, etc. The project discussed in this write-up involves the development and implementation of a LabVIEW-based PID controller for a simple tank level process. LabVIEW is a graphical programming language that has applications in data acquisition, FPGA logic circuit design and plant monitoring and control.

With respect to computer software there are packages that can be applied for system simulation, measurement and control e.g. The use of computer-based controllers such as microcontrollers, programmable logic controllers (PLCs), microprocessors and general-purpose digital computers in process control systems has significant advantages that include flexibility and ability to implement very advanced control algorithms, among others. Predictive Control, Multi-variable Control, Fuzzy-logic control etc. Specifically, the automatic monitoring and control of industrial processes and plants are increasingly being effectively and reliably carried out by computer-based controllers implementing control algorithms that include basic controls such as PID control as well as advanced controls e.g. Introduction Process Control like many other areas of human endeavour continues to be impacted positively by the revolutionary developments in the field of computer hardware and software.

Pid control using labview