IEEE-P1451.2 Smart Transducer Interface Module | NIST
Stan P. Woods, David A. Rasmussen, Michael Mattes, Kang B. Lee, Norm Lecomte, John Houldsworth, Fernando Gen kuong, Micahel Geipel, Edwin El-kareh, Steven R. Cranmer, S Chen, Januz Bryzek · 1996
This paper provides a technical overview of the smart transducer interface module (STIM), the key element of the proposed IEEE-P1451.2 Draft Standard for Transducer to Microprocessor Communication Protocols and Transducer Electronic Data Sheets (TEDS) Formats. The draft standard is released for balloting as of August, 1996. Objectives and genealogy of this standard are summarized. Key technical innovations such as the TEDS, representation of physical units, general calibration model, triggering of sensors and actuators, variable transfer rate between a host and the STIM, and support for multivariable transducers are briefly discussed. Detailed descriptions of the STIM, TEDS, digital interface, and plugand-play operation are also provided. The specifics of physical units encoding, an example of a TEDS, and an example of timing requirements for taking a sensor reading are also included to aid the overview. 1. Objectives of IEEE-P1451 The Draft Standard for A Smart Transducer Interface for Sensors and Actuators, IEEE-P1451, aims at simplifying transducer connectivity to existing networks. IEEEP1451 consists of two parts: • P1451.1, developing a network independent common object model for smart transducers. • P1451.2, enabling connection of transducers to network microprocessors.