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简要介绍了计算机通用的串行通信端口RS-232在数据通信中的引脚功能。在Delphi环境中利用第三方通信控件AdpCom Port设计了自定义通信协议方式下实现数据通信的方法。最后结合具体实例给出了数据通信的接收和发送数据的主要代码。实际运行结果证明,该种通信方式可以实时、安全、可靠地实现不同安全等级计算机的数据传输。
This paper introduces the pin function of RS-232 in data communication, which is a universal serial communication port of computer. In the Delphi environment using third-party communication control AdpCom Port designed a custom communication protocol to achieve data communication methods. Finally, with the specific examples given the data communication to receive and send the main code of the data. The actual operation results show that this kind of communication can realize the data transmission of computers of different security levels in real time, safely and reliably.