Full Open The Pcnc Hardware Function Module Underlying Communication Development

In order to fasten the research in Open Architecture CNC in our country, and shorten the disparity with overseas, it bring forwards the scheme of PCNC of Full Open Architecture aiming at domestic research status in the field of CNC, that' s to say, not only realizing software' s open, but also modularizing these hardware-functions.At first, it summarizes the newest research evolvement of Open CNC and main technology ideas of device driver, and analyzes in detail new characters, working principle, basic frame and developing tools of WDM driver, and comes up with basic flow of developing WDM driver by combining practice experience. Secondly, it sets forth the basic principle and constitutes of the Full Open CNC and so on, and focuses on down-level communication of hardware-function module by using WDM technology, the newest technology developed by Microsoft Co., and develops a WDM device driver for digital I/O module(HY-6140 digital input card) in PCNC based on Windows2000, which can rapidly and correctly reads the digital signal outside from the HY-6140 digital input card through real testing. Finally it designs the method of assorting with and monitoring all kinds of hard-function modules, and discusses the problems of NC language and hard-connection between the machine and the controllers during realizing full Open Architecture PCNC.