Research and implementation of DTM Plug-in

FDT/DTM(Field Device Tool/Device Type Manager) technology is a high-level device integration technology,which has a broad application prospect.The paper studies the DTM development methods based on COM(Component Object Model)plug-in,establishes a DTM framework by using components technology,and introduces implementation process of the Device DTM.Finally,we realize the NCSPT105 Ⅱ device DTM,and integrate it into MM fdtcontainer,running well.