modbus 测试，用VB的winsock控件实现的modbus tcpip通讯等-modbus test, with VB the winsock control to achieve the modbus tcpip communications

毕业设计论文，基于VC的Modbus通讯实现，用的是第三方通信类，实现了以个主机的通信界面，代码另附-Graduation thesis, based on VC Modbus communication to achieve, using third-party communications, implemented with a host of communication interfaces, the code attached