with S7-200PLC the Free Port Mode and the VB MSComm to realize a trap Computer and S7-200 (CPU224) PLC communications. Computer as a master station, Computer users can easily set up control rooms PLC issued directives to control or monitoring orders, PLC as from the station to respond to orders sent by the computer and take corresponding action will be room for electricity, water, Heat fat information to the computer. The user can screen real-time surveillance of the room electricity, water and heat information and handled accordingly.

程序





....\3.bmp
....\Form1.frm
....\Form1.frx
....\MSSCCPRJ.SCC
....\S7—200系列PLC与PC间自由口通讯的实现.pdf
....\VBA3.tmp
....\工程1.vbp
....\工程1.vbw
....\新建 Flash 文档.fla
....\新建 Flash 文档.swf
....\通讯.mwp
....\通讯0.1.mwp

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