Delphi Modbus 主站控件，使用TCPCLient 用康海串口服务器通讯，下位机接到串口服务器串口上，用Modbus协议通讯。-Delphi Modbus master control, the use of TCPCLient Kang Hai serial server with the Communication, under the crew received a serial port server serial port, and with the Modbus proto

这是公司读取射频卡的一个demo程序，用动态链接实现串口和下位机通讯，并将协议集成在链接库中！-This is the company s reading radio frequency card a demo program, the dynamic link is used to implement a serial port and the next bit machine communication, and to integrate the agreement in the libra