Evaluating of self-tuning Zone PID Controller for Furnaces Control System implementation via SIEMENS S7-1200, new generation PLC

S7-1200 with Tia Portal technology has become Standard function of distributed control systems. Self-Tuning methods belong to Programmable Controllers (PLC) techniques. PLC techniques contain software packages for advanced control based on mathematical methods.S7-1200 tools are designed for increasing the Process Capacity, yield and quality of products. Most of the present time digital industry regulators and PLCs are provided by some kind of the Self Tuning constant algorithm. Practical part of the paper deals with design of the control systems which contain Self Tuning regulator and Zone PID feature. A Control System is designed by PID Self Tuner by Siemens and with visualization in Tia Portal. There is a description of an implementation of the PID regulator as a function block which can be also used for the extension Zone PID control functions. Control Systems for relay and moment Self Tuner with visualizations in Tia Portal are also designed and are tested in the ZAFAR Steel Plant, BONAB, IRAN.