STUDY ON KEY TECHNOLOGIES OF DNC SYSTEM ORIENTEDNETWORKED MANUFACTURING

摘要

As one of major methods to meet information integration of numerical control machines in workshop, DNC(Direct Numerical Control or Distributed Numerical Control) oriented networked manufacturing (Web-DNCsystem )differs dramatically from conventional ones by having: (1) concurrently supporting networked manufacturing;(2) sharing the numerical control machines via network; (3) optimizing the configuration and reorganization ofnumerical control resources. This paper deals with the key technologies of Web-DNC system, including: theimplementing architecture model with four levels (user level, service level, agent level and facility level) and thetopology architecture. Compared with the communication architecture with fieldbus, a simpler function model of DNCcommunication technology based on Ethernet technology is presented. The BL2010 SCM is selected as a COM serverto meet the required capabilities of DNC controller.