水电站机组监控系统中上位机与下位机的通信实现

Communication between Host Computer and Slave Computer in the Superivision System of Hydroelectric Generating Set

介绍了在水电站机组监控系统中,如何利用VB来实现上位机与三菱FX系列PLC的通信,上位机与三菱FX系列PLC之间采用计算机链接通信方式。并介绍了水电站机组监控系统的通信方式、通信规约以及所采取的提高通信可靠性的措施。经水电站实际运行证明,该通信方式运行稳定、可靠。

The paper presents the implementwtion of communication between host computer and slave computer in the supervision system of a hydroelectric generating set by utilizing Visual Basic, and also introduces some reliability measures in programming.