Automation application in small and medium factories in Binh Dinh is to improve labor productivity, to reduce costs and to control technology. Most factories i,n Binh Dinh are currently using old technology imported from other countries
therefore, it is vital to carry out a study on application of SCADA in operating these factories. By using PLC combined with Win CC software, the author can interfere with existing control systems to provide effective supervisory control and data acquisition.