整套配料上料系统电气设计图纸，西门子200 plc程序，上位wincc界面程序，配套vbs编写的SQL数据库的记录及报表系统，一个非常全面的电气工程案列。-Electrical design drawings for complete ingredient feed systems, Siemens 200 PLC program, upper WinCC interface procedures, supporting SQL　written in vbs in recording and reporting system is a very comprehensive case of electrical engineering.