To assess control quality, we used IAE index. We conducted tests for step change in the set point, trajectory tracking, and load disturbances.
Autotune online' Pc#
The connection between the PC and PLC was maintained through a National Instruments data acquisition board, NI PCI-6229. We simulated the plants on a PC in Matlab R2013a. The procedure was tested for three types of plant models: with lag-dominated, balanced, and delay-dominated dynamics. Next, we compared this method with two built-in PID autotuning procedures which were available in Siemens S7-1200 PLC controller. We combined the Method of Moments with the AMIGO tuning rules and implemented this combination as a stand-alone autotuning procedure in Siemens S7-1200 PLC controller. The second advantage of this method is that it approximates plant during identification process to first order model with time delay.
![autotune online autotune online](https://www.antarestech.com/wp-content/uploads/2020/03/Screen-Shot-2020-03-31-at-11.50.10-AM.png)
The sensitivity to measurement noises is a serious problem in other autotuning methods. This results in high resistance to the measurement noises. The advantage of the Method of Moments is that the time constant and transport delay are estimated at the areas rather than on the individual points. * Corresponding author: this paper, we present the automatic PID tuning procedure based on the Method of Moments and AMIGO tuning rules. Warsaw University of Life Sciences, Faculty of Production Engineering, Nowoursynowska 164, 02-787 Warsaw, Poland
![autotune online autotune online](https://i.ytimg.com/vi/mpEPFc_1ibA/maxresdefault.jpg)
Marcin Daniun, Michał Awtoniuk * and Robert Sałat