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介绍利用西门子840D数控系统Mini手持单元进行坐标测量的设计要点,包括:手持单元按键功能扩展、PLC控制逻辑以及调用异步子程序的设置。
This paper introduces the design essentials of coordinate measurement using Mini handheld unit of Siemens 840D CNC system, including the expansion of the function keys of handheld unit, the logic of PLC control and the setting of calling asynchronous subroutine.