Abstract：In the modern real-time monitoring systems and industrial automation systems， many systems communicate with the serial device to control the terminal equipment．How can the development of efficient and fast serial communication program is particularly import．In this paper，taking a practical control system as the background，brief introduction of serial communication is given，the SerialPort class is used to realize the process of serial communications．Finally，with the practical application，it is demonstrated that SerialPort class can easily and quickly realize serial communication．
2011, Vol. 1 