Description: Vb with ab via a serial port communication ab series PLC usually have dedicated driver used to realize the communication between PLC and computer, such as RSLINX is dedicated to do the work, but using RSLINX also has certain limitation, here provide a vb programming to realize communication between PLC and computer program, the protocol used is DF1, can support Micrologix, SLC500 series PLC
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新建文件夹\gsq.vbp
..........\gsq.vbw
新建文件夹
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