PC机与PLC通信测试自己编写的工控机与PLC的通信测试程序源码，利用了CSerialPort类在

Title: PC机与PLC通信测试

Description: 自己编写的工控机与PLC的通信测试程序源码，利用了CSerialPort类在VC6.0环境下实现，PLC采用了日本基恩士PLC，通信协议改一下，同样适用其它PLC

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