Introduction - If you have any usage issues, please Google them yourself
found online, VB control PLC IO port source, but seems a bit, Which expert help debug under.
Packet : 69491716vbio.rar filelist
VB控制IO端口的源码\FORM1.BAK
VB控制IO端口的源码\DIO.DLL
VB控制IO端口的源码\FORM1.FRM
VB控制IO端口的源码\MODULE1.BAS
VB控制IO端口的源码\MSSCCPRJ.SCC
VB控制IO端口的源码\PROJECT1.VBP
VB控制IO端口的源码\PROJECT1.VBW
VB控制IO端口的源码\PROJECT1.exe
VB控制IO端口的源码