This paper introduces a way of communication between super-computer and Omron C200HS PLC by Visual C++ language and the application of this way in the Monitor system on Running-Status of harbor operation bridge.

• 介绍了利用可视化语言VisualC ++实现上位机工业PC与下位机OmronC2 0 0HSPLC之间通信的方法及其在港口装卸桥运行状态监测系统中的具体应用。