Based on the standard of network sensor interface IEEE1451.2,using ADuC812 as the main device,the design and implementation of smart transducer interface module(STIM) is explored,and a program is also developed to make the function as the network capable application processor(NCAP),to store,as well as retrieve and modify transducer electronic data sheet(TEDS) on-line,in this way,plug and play of the sensor or actuator can be realized.