利用VB的MSComm控件编程实现PC与三菱PLC FX系列通信，利用VB6.0以一个简单的例子来说明编写通信程序的要点。-The MSComm control using VB programming PC with Mitsubishi PLC FX series communication, using VB6.0 with a simple example to illustrate the preparation of communication of the procedure.