及在配套SCC单板机实时控制系统中,我们自行设计并研制了供显示和修改参数用的操作面板其接口电路。经过一段时间的试运表明,基本上满足了由SCC组成过程控制系统中人机联系的操作需要,并且操作简便,易于掌握。微型计算机控制系统中配置了这种操作面板,不仅提高控制系统的实时性,降低了系统成本,而且使系统具备类似于集散型控制系统的现场操作站的功能,对微型机过程控制系统的推广应用,具有一定的意义。本文着重介绍了操作面板的软件控制和接口电路的设计原理,最后还列出了操作面板的驱动程序框图。 And in supporting the SCC single-board real-time control system, we have designed and developed its own interface circuit for display and modify the parameters of the operation panel. After a period of trial operation shows that basically meet the composition of the process control system by SCC man-machine contact operation needs, and easy to operate, easy to grasp. The microcomputer control system is equipped with such an operation panel, which not only improves the real-time performance of the control system and reduces the system cost, but also enables the system to have the functions of an on-site operation station similar to the distributed control system and the popularization of the microcomputer process control system Application, has a certain significance. This article focuses on the operation panel software control and interface circuit design principles, and finally lists the driver panel diagram of the operation panel.