Self-Tuning PID Controller Using Ziegler-Nichols Method for Programmable Logic Controllers

In this paper a modified PID controller is presented as a dynamic system controller. Here Ziegler-Nichols process reaction method is clarified to designate self-tuning, and advantages of self-tuning are also explained in detail. Moreover, simulation results of self-tuning PID controller using Ziegler-Nichols are acquired from programmable logic controller (PLC), and then are given in related topics. Finally, the complete algorithm is tested in an industrial thermal system, and results of this test are offered and explained.