Hard/Soft simulator for electric engines controlled with Siemens automates

The main objective of this paper is to make a hardware/software system that could simulate an electric engine on a tablet with the Android operating system, having at our disposal the SIMATIC S7-1200 automate with the software program TIA Portal v11, implementing in this a PID for controlling the simulated electric motor. For simulating the electric motor on the tablet we used components that implement physics functions provided by modern software instruments like Box2D library and Engine.