注塑机生产过程的微机控制系统设计本系统设计是通过8255A并行端口A、B传输数据控制12个LED发光二级管的亮灭来模拟控制两台注塑机的生产过程。其中端口A和B分别对应1号和2号注塑机，每一个LED代表一个工序。编程语言采用BORLAND C++语言。-injection molding machine of the production process computer control system design of the system design through 8255A Parallel Port A, B transmission of data control 12 LED light emitting diode to the analog-to eliminate two injection molding machine control the production process. These ports A and B respectively counterparts on the 1st and the 2nd injection molding machine, each one represented an LED processes. BORLAND programming language using C language.