PITOPS Technology:
PITOPS is basically short form of “Process Identification, Controller Tuning and Optimization Simulator ”. PITOPS works solely in time domain and that makes PITOPS different from the other market simulators which work in Laplace domain. It also has the ability to identify multivariable process models based on the closed or open-loop history or live data. It can also simulate the behavior of new vs. old PID tuning parameters based on the SP change, existing disturbances and signal noise, valve stiction or some other real-life and frequently seen process constrains. It does not require new, time consuming and large plant step-tests. The working of PITOPS is described below:
Once the PID tuning and optimization has been finished, the produced new PID tuning parameters can be easily tested using robustness algorithm. Robustness algorithm allows user to test new PID tuning parameters upon the SP and dynamics change on simulator and see how process will behave in real. When the process control engineer is satisfied with new PID tuning parameters he just needs to enter them back to DCS or a PLC system and they will work properly. The usage of PITOPS is quite simple and easy to understand. Apart from simplicity, the time taken in PITOPS for tuning any controller is also less than using standard methods.