ISO/IEC 24791-5:2025
(Main)Information technology — Radio frequency identification for item management software system infrastructure — Part 5: Device interface
Information technology — Radio frequency identification for item management software system infrastructure — Part 5: Device interface
This document specifies an interface within the software system infrastructure (SSI) that provides radio frequency identification (RFID) system control components with low-level access to RFID interrogators for the purpose of optimizing RFID data access and control operations. This interface is designed to be modular with the ability to support multiple RFID air protocols. However, in this document, the only RFID air protocol supported is ISO/IEC 18000-63:2021.
Technologies de l'information — Identification de radiofréquence (RFID) pour la gestion d'élément — Infrastructure de systèmes logiciels — Partie 5: Interface de dispositif
General Information
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Standards Content (Sample)
International
Standard
ISO/IEC 24791-5
Second edition
Information technology — Radio
2025-10
frequency identification for item
management software system
infrastructure —
Part 5:
Device interface
Technologies de l'information — Identification de radiofréquence
(RFID) pour la gestion d'élément — Infrastructure de systèmes
logiciels —
Partie 5: Interface de dispositif
Reference number
© ISO/IEC 2025
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© ISO/IEC 2025 – All rights reserved
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Conformance . 2
6 Software system infrastructure architecture overview . 3
7 UML modelling . 3
8 Device interface . 4
8.1 General .4
8.2 Architecture .4
9 LLRP extensions abstract definitions . 4
9.1 General .4
9.2 LLRP data types .5
9.3 ObjectIdentifier field type .6
9.4 ISO15962Read parameter .6
9.4.1 General .6
9.4.2 Conformance requirement .6
9.5 OID parameter .7
9.5.1 General .7
9.5.2 Conformance requirement .7
9.6 ISO15962ReadResult parameter .8
9.6.1 General .8
9.6.2 Conformance requirement .8
9.7 ISO15962OIDReadResult parameter .9
9.7.1 General .9
9.7.2 Conformance requirement .9
9.8 ISO15962RawDataReadResult parameter .10
9.8.1 General .10
9.8.2 Conformance requirement .10
10 LLRP extensions binary encoding .11
10.1 General .11
10.2 ISO15962Read parameter .11
10.3 OID parameter .11
10.4 ISO15962ReadResult parameter . 12
10.5 ISO15962OIDReadResult parameter . 12
10.6 ISO15962RawDataReadResult parameter . 13
Annex A (informative) LLRP open source project references . 14
Annex B (informative) UTF-8 and 8859-1 conversion algorithms .15
Bibliography .18
© ISO/IEC 2025 – All rights reserved
iii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations,
governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/
IEC Directives, Part 2 (see www.iso.org/directives or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 31, Automatic identification and data capture techniques.
This second edition cancels and replaces the first edition (ISO/IEC 24791-5:2012), which has been technically
revised.
The main change is as follows: references to ISO/IEC 19762 and Type C of ISO/IEC 18000-63:2021 have been
corrected.
A list of all parts in the ISO/IEC 24791 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
© ISO/IEC 2025 – All rights reserved
iv
Introduction
Radio frequency identification (RFID) air interface technology is based on non-contact electro-magnetic
communication among interrogators and tags. RFID software systems are composed of RFID interrogators,
intermediate software systems, and applications that provide control and coordination of air interface
operation, tag information exchange, and health and performance management of system components.
RFID technology is expected to increase effectiveness in many aspects of business by further advancing the
capabilities of automatic identification and data capture (AIDC). To achieve this goal through the successful
adoption of RFID technology into real business environments, RFID devices, software systems and business
applications must provide secure and interoperable services, interfaces and technologies. This is the goal
of the ISO/IEC 24791 series, which cover RFID software system infrastructure (SSI). The composition and
operations of SSI exist in systems that implement other RFID standards, such as the ISO/IEC 18000 series
which describes air interfaces, and ISO/IEC 15962, the ISO/IEC 15963 series and ISO/IEC 24753 which
describe data and interface functions.
The goal of this document is to define a device interface that provides RFID controlling software with low-
level access to RFID air interface hardware. This low-level access gives programmers a degree of control
over the sequencing of air protocol commands and direct access to air protocol command parameter. Using
this low-level interface, programmers can optimize RFID data access and control operations.
The interface defined by this document supports the following features:
— efficient, binary transfer syntax over transmission control protocol/internet protocol (TCP/IP);
— access to RFID air protocol commands and command parameters;
— support for optimized RFID tag access operations whereby multiple operations can be performed on a
tag with minimal tag state changes;
— direct read or write access to all data on an RFID tag;
— read
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