摘耍：现代控制和数括采集系统中通常采用多个单片机自青现场操作(前台)，而Pc机功能强大、芥面友好，作为系

统的后台．这样单片机与Pc机之问酌通信是整个系统托否可靠工作的关照。谊文从系统蛄构、性能扩展、软件等方面舟绍了

Pc机与单片机远程多机通信时一种实现方涪。-Abstract：Many sin91e chip mlcro contr01Iers afe usually adopted in the modem controI and data—coIIection

system to dominate on—the—spot operatlon．The powerful PC with its friendIy interface serves as the back—

stage of the 8ystem．The corre3pondence between the si“gle chIp mjcro controllers and the PC is the key to the

whole system operation．The paper introduces amethod to realize the lo“g—ra“ge correspondence between the

PC and sj“glt chip micro controllers in the followi“g aspect3：system structures，function expansion and soware，etc．．