Hello! I work in the leading companies of Ukraine for fourteen years. I have more than 70 implementations of software and control systems ranging in size from one machine to the production department . My main specialty controllers SIEMENS: 200 , 1200 , 300, 1500, 400 series; Schneider: Premium, M340, M241, M251, M580, Quantum; Emerson, Rockwell PLC and a lot of smaller systems like Mitsubishi, Omron, LG, Fatek, VAGO, Click, Bernecker + Rainer, Unitronix and other. I know programming languages SIMATIC Step- 7, PCS-7, TIA-Portal; Schneider UnityPro, CoDeSys, SoMashine, Ignition SCADA, Citect Scada, WinCC, InTouch and many other. There are also implementations of the Internet of Things through Node Red.