【摘要】 首先介绍了在系统可编程技术及器件的特点。根据开放式数控系统中通用伺服控制模板对I/O的要求 ,由高密度在系统可编程逻辑器件设计了单片数字I/O电路。所设计的单片数字I/O电路已用于开放式多坐标联动数控系统 ,结果表明所设计的电路完全达到设计目标 ,运行效果良好更多还原

【Abstract】 The characteristics of In System Programmable technique device were introduced briefly in this paper.According to the desire to I/O that of universal module in open numerical control system,The author designed the digital I/O circuit by High density in system programmable logic device.The digital I/O circuit was used in open unmerical control system successfuly,and the results showed that the circuit met with what the design desired completely.更多还原