通过wincc调用dll程序访问数据库，实现wincc数据外发接口-Wincc call dll program to access the database to achieve wincc data outgoing interface

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