INTERNATIONAL ISO/IEC/ STANDARD IEEE 21451-7 First edition 2011-12-15 Information technology Smart transducerinterfaceforsensorsand actuators Part 7: Transducer to radio frequency identification (RFID) systems communication protocols and Transducer Electronic Data Sheet (TEDS) formats Technologiesdel'information-Interfacedetransducteursintelligente pour capteurs et actuateurs- Partie 7:Protocoles de communication entre capteurs et systemes d'identificationparradiofrequence(RFID)etfeuillesdedonnées électroniquesdutransducteur(TEDS) Referencenumber IEC IS0 ISO/IEC/IEEE21451-7:2011(E) IEEE ISO/IEC2011 IEEE2011 ISO/IEC/IEEE21451-7:2011(E) COPYRIGHTPROTECTEDDOCUMENT ISO/IEC2011 IEEE2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ISO, IEC or IEEE at the respective address below. ISO copyright office IEC Central Office Institute of Electrical and Electronics Engineers, Inc. Casepostale56 3, rue de Varembe 3 Park Avenue, New York CH-1211Geneva 20 CH-1211Geneva 20 NY10016-5997,USA Tel. + 41 22 749 01 11 Switzerland E-mail [email protected] Fax + 41 22 749 09 47 E-mail [email protected] Web www.ieee.org E-mail [email protected] Web www.iec.ch Web www.iso.org Published by ISO in 2012 Published in Switzerland @ISO/IEC 2011-All rights reserved @IEEE2011-All riahts reserved ISO/IEC/IEEE21451-7:2011(E) Contents Page Foreword .vi Introduction 1 Scope.. 2 Conformance 3 Normative references.. 4 Terms and definitions. 5 Abbreviated terms... 6 Transducerand RFIDsystem interface specification 7 Air interface applicability (RFID and RTLS).. 7.1 General. 7.2 Overview.. 7.3 Sensorsecuritysystembasicoperations 7.3.1 Air interface security system support.. 7.3.2 Direct sensor security support... 7.4 7.5 Sensor characteristics TEDS (Type 1) 7.5.1 TEDS type.. 7.5.2 Sensortype.. 10 7.5.3 Units extension.... 7.5.4 Sensor map of supported measurement codes.. 10 7.5.5 Data resolution ... 7.5.6 Scale factors for transmitted data. 12 7.5.7 Data uncertainty ... 7.5.8 Sensor reconfiguration. 13 7.5.9 Memoryrollover capability.. 13 7.5.10 Air interface security capability 7.5.11 Sensorsecuritycapability.... 17 7.5.12 Sensor authentication encryption capability map. 7.5.13 Sensor data encryption capability map. 18 7.5.14 7.5.15 Continuing authentication capability field.... 18 7.5.16 Sensor authentication password/key size.... 7.5.17 Sensor data encryption key size..... 19 7.5.18 Data encryption capability field.... 19 7.6 Sample and configuration record. 20 7.6.1 UTc timestamp at configuration and beginning of mission.. 20 7.6.2 Sample interval.... 7.6.3 Monitor delay.. 21 7.6.4 Alarm values set. 7.6.5 21 7.6.6 Air interface tag security status code..... 22 7.6.7 Sensor command classes .... 22 7.6.8 Air interface security function code .... 23 7.6.9 Sensor security function code.... 24 7.6.10 Sensorauthentication encryptionfunction code 25 7.6.11 Sensor data encryption function code. 25 7.6.12 25 7.6.13 Secure session timer .... ISO/IEC2011-All rights reserved .aariahtsreserved ili