One is for the upper computer written in Visual C++ 6.0 and MSComm tools, and the other is for the lower Hydro-Valve controller written in Keil C. A RS-232/RS-485 converter is used as the reliable interface between the upper and the lower.

• 上位机采用Visual C++6.；0和MScomm作为开发工具，通过RS-232/RS-485转换器实现上位机连续可靠地与闸位控制器之间的通信。