【摘要】 根据设备控制器（ＰＬＣ）Ｉ／Ｏ和中间状态信息在故障诊断中的应用，介绍了计算机与机床通讯获取ＰＬＣ内Ｉ／Ｏ信息和状态信息的相关的内容，尤其是与ＳＩＮＵＭＥＲＩＫ８８０系统通信相关的数据格式设置、通信协议的分析等内容。更多还原

【Abstract】 This article is brief to introduce the resource and acquisition method of mechanical equipment diagnostic information,and it is emphasized on diagnostic information acquisition based on PLC,and in the process of studying of diagnostic information acquisition,the communication program with SINUMERIK 880 system is developed in the windows environment.更多还原