ISO/IEC 14543-4-3:2015

Information technology — Home Electronic Systems (HES) architecture — Part 4-3: Application layer interface to lower communications layers for network enhanced control devices of HES Class 1

ISO/IEC 14543-4-3:2015(E) specifies the message structure, sequences and protocol of the application layer for use in network enhanced control devices of the Home Electronic System (HES) Class 1. It provides the services and the interface for the user-level process. This application layer protocol is independent of lower communications layers, which support MAC addressing or IP addressing. The communications sequence is based on the application services.

Technologies de l'information — Architecture des systèmes électroniques domestiques (HES) architecture — Partie 4-3: Titre manque

General Information

• Status: Published
• Publication Date: 08-Sep-2015
• ICS: 35.200 - Interface and interconnection equipment
• ICS: 35.240.67 - IT applications in building and construction industry
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Current Stage: 6060 - International Standard published
• Due Date: 18-Nov-2016
• Completion Date: 09-Sep-2015

Standards Content (Sample)

ISO/IEC 14543-4-3
Edition 1.0 2015-09
INTERNATIONAL
STANDARD

colour
inside
Information technology – Home electronic system (HES) architecture –
Part 4-3: Application layer interface to lower communications layers for network
enhanced control devices of HES Class 1

ISO/IEC 14543-4-3:2015-09(en)

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ISO/IEC 14543-4-3


Edition 1.0 2015-09




INTERNATIONAL



STANDARD








colour

inside










Information technology – Home electronic system (HES) architecture –

Part 4-3: Application layer interface to lower communications layers for network

enhanced control devices of HES Class 1


























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION






ICS 35.200 ISBN 978-2-8322-2868-5



  Warning! Make sure that you obtained this publication from an authorized distributor.

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– 2 – ISO/IEC 14543-4-3:2015
© ISO/IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
4 Conformance . 9
5 Services of the application layer . 9
5.1 Positioning in communications layers . 9
5.1.1 General . 9
5.1.2 When using UDP in layer 4 and IP in layer 3 . 10
5.2 Service primitives of the application layer . 10
5.2.1 General . 10
5.2.2 NECD objects from the viewpoint of application software . 11
5.2.3 Case 1: Obtaining the status of another node . 11
5.2.4 Case 2: Controlling the functions of other nodes . 12
5.2.5 Case 3: Notifying own node status to other nodes . 13
6 Application layer protocol data unit (APDU) . 15
6.1 Overview. 15
6.2 NECD header (NHD) . 16
6.2.1 Overview . 16
6.2.2 NECD header 1 (NHD1) . 16
6.2.3 NECD header 2 (NHD2) . 17
6.3 Transaction ID (TID) . 17
6.4 NECD data (NDATA) . 17
6.5 NECD object (NOJ) . 17
6.6 NECD Service (NSV) . 18
6.6.1 Overview . 18
6.6.2 Property value write service (no response required) [0x60, 0x50] . 22
6.6.3 Property value write service (response required) [0x61, 0x71, 0x51] . 22
6.6.4 Property value read service [0x62, 0x72, 0x52] . 23
6.6.5 Property value write and read service [0x6E, 0x7E, 0x5E] . 24
6.6.6 Property value notification service [0x63, 0x73, 0x53] . 25
6.6.7 Property value notification (response required) [0x74, 0x7A]. 26
6.7 Processing object property counters (OPC, OPCSet and OPCGet) . 27
6.8 NECD property (NPC) . 27
6.9 Property data counter (PDC) . 28
6.10 NECD property value data (NDT) . 28
7 Basic sequences . 29
7.1 General . 29
7.2 Basic sequences for object control . 29
7.2.1 Overview . 29
7.2.2 Basic sequences for object control in general . 29
7.2.3 Basic sequences for service content . 30

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ISO/IEC 14543-4-3:2015 – 3 –
© ISO/IEC 2015
7.3 Basic sequences for node start-up . 32
7.3.1 Overview . 32
7.3.2 Basic sequence for NECD node start-up . 32
8 NECD objects – Detailed specifications . 33
8.1 General . 33
8.2 Types of objects. 33
8.2.1 Device objects . 33
8.2.2 Node profile object . 33
8.3 NECD property value data types . 33
8.3.1 Overview . 33
8.3.2 NECD property value range . 34
8.3.3 Class-specific mandatory properties . 34
8.3.4 Profiles obliged to have a status change announcement function . 35
Bibliography . 36

Figure 1 – Communications middleware . 9
Figure 2 – Acquisition of status of another node (synchronous type) . 11
Figure 3 – Acquisition of status of another node (asynchronous type) . 12
Figure 4 – Objects seen from application software . 12
Figure 5 – Method of controlling other nodes . 13
Figure 6 – Objects seen from application software . 13
Figure 7 – Method of notification to other nodes (synchronous type) . 14
Figure 8 – Method of notification to other nodes (asynchronous type) . 14
Figure 9 – Objects seen from application software . 14
Figure 10 – Example of object configuration . 15
Figure 11 – NECD frame format . 16
Figure 12 – Bit specifications of NHD 1 . 17
Figure 13 – Detailed specifications of NHD 2 . 17
Figure 14 – Bit specifications of the NOJ code . 18
Figure 15 – Bit specifications of the NSV code . 18
Figure 16 – Sequence diagram for NSV transmission and reception . 21
Figure 17 – NDATA configuration for property value write service (no response
required) . 22
Figure 18 – NDATA configuration for property value write service (response required) . 23
Figure 19 – NDATA configuration for property value read service . 24
Figure 20 – NDATA configuration for property value write and read service . 25
Figure 21 – NDATA configuration for property value notification service . 26
Figure 22 – NDATA configuration for property value notification (response required)
service . 27
Figure 23 – Processing target property counter for three requests . 27
Figure 24 – NPC detailed specifications . 28
Figure 25 – NPC code allocation . 28
Figure 26 – Basic sequence when controlled object does not exist . 29
Figure 27 – Basic sequence when controlled objects exist . 30
Figure 28 – Basic request receiving sequence for NSV = 0x60 . 30

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© ISO/IEC 2015
Figure 29 – Basic request receiving sequence for NSV = 0x6* . 31
Figure 30 – Basic request receiving sequence for NSV = 0x63 . 31
Figure 31 – Basic property value notification sequence . 32
Figure 32 – Basic sequence for NECD node start-up . 32

Table 1 – List of NSV Codes for Requests . 20
Table 2 – List of NSV codes for response/notification . 20
Table 3 – List of NSV codes for “Response not possible” . 21
Table 4 – Data types, data sizes and overflow / underflow codes . 34

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ISO/IEC 14543-4-3:2015 – 5 –
© ISO/IEC 2015
INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) ARCHITECTURE –

Part 4-3: Application layer interface to lower communications
layers for network enhanced control devices of HES Class 1

FOREWORD
1) 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. In the field of information technology, ISO and IEC have
established a joint technical committee, ISO/IEC JTC 1.
2) The formal decisions or agreements of IEC and ISO on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
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patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 14543-4-3 was prepared by subcommittee 25: Interconnection
of information technology equipment, of ISO/IEC joint technical committee 1: Information
technology.
The list of all currently available parts of the ISO/IEC 14543 series, under the general title
Information technology – Home electronic system (HES) architecture, can be found on the
IEC web site and ISO web site.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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understanding of its contents. Users should therefore print this document using a
colour printer.

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© ISO/IEC 2015
INTRODUCTION
This part of ISO/IEC 14543 specifies the message structure, sequences and protocol of the
application layer for use in the Home Electronic System. Some services are targeted for
communications between devices. Other services are exclusively reserved for management
purposes. Some services can be used for both management and run-time communications.
This standard is applicable for energy management services, mobile access, remote
appliance maintenance services, home healthcare services, home security services and
th th
comfort control. This standard focuses on the application layers (5 layer to 7 layer of the
OSI reference model). This standard specifies a message structure that differs from the
12 message structures specified in ISO/IEC 14543-4-1. This standard allows the use of IP
addressing or MAC addressing, while ISO/IEC 14543-4-1 specifies a different non-IP address
structure. This part depends on routing functions provided by an external IP layer.
ISO/IEC 14543-4-1 uses the routing functions specified in ISO/IEC 14543-4-2. Therefore
Part 4-3 is an alternative to Part 3-1 plus Part 3-2.
ISO/IEC 14543, Information technology – Home Electronic System (HES) architecture,
provides
an introduction to specifications for Home Electronic System (HES):
Part 2-1: Introduction and device modularity
and specifications for three types of HES devices:
Parts 3-x Specifications for network based control of HES Class 1
Parts 4-x Specifications for network enhanced control of HES Class 1
Parts 5-x Specifications for intelligent grouping and resource sharing for HES Class 2
and Class 3

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ISO/IEC 14543-4-3:2015 – 7 –
© ISO/IEC 2015
INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) ARCHITECTURE –

Part 4-3: Application layer interface to lower communications
layers for network enhanced control devices of HES Class 1



1 Scope
This part of ISO/IEC 14543 specifies the message structure, sequences and protocol of the
application layer for use in network enhanced control devices of the Home Electronic System
(HES) Class 1. It provides the services and the interface for the user-level process. This
application layer protocol is independent of lower communications layers, which support MAC
addressing or IP addressing. The communications sequence is based on the application
services.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
ISO/IEC 14543-2-1, Information technology – Home electronic system (HES) architecture –
Part 2-1: Introduction and device modularity
ISO/IEC 14543-4-1, Information technology – Home electronic system (HES) architecture –
Part 4-1: Communication layers – Application layer for the network enhanced control devices
of HES Class 1
ISO/IEC 14543-4-2, Information technology – Home electronic system (HES) architecture –
Part 4-2: Communication layers – Transport, network and general parts of data link layer for
network enhanced control devices of HES Class 1
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document the terms and definitions given in ISO/IEC 14543-2-1 and
the following apply.
3.1.1
NECD communications middleware
middleware between the lower communications layers to the application layer that performs
communications processing according to the protocol specified in this standard
3.1.2
NECD communications processing block
processing block for the communications middleware
Note 1 to entry: This block performs communications protocol processing to facilitate remote device control /
monitoring processing for application software, stores information for the above and controls various data on the
device as well as the status of other devices.

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© ISO/IEC 2015
3.1.3
NECD data
NDATA
data region for message exchanged by NECD communications middleware
3.1.4
NECD header
NHD
data containing the protocol type and message format for the NDATA section
3.1.5
NECD object
NOJ
model of information to be disclosed to the network from information owned by the NECD
communications processing block, or an access procedure model
Note 1 to entry: The information or control target owned by each device is specified as a property and the
operating method (setting, browsing) for this is specified as a service.
3.1.6
NECD property code
NPC
code value related to the NECD property
3.1.7
NECD service
NSV
code value related to the NECD service
3.1.8
NECD frames
frame composed of NHD1, NHD2, TID and NDATA
3.1.9
property value data
data value related to the NECD property code (NPC)
EXAMPLE Status notification or specific setting.
Note 1 to entry: Property value data is controlled by the NECD service (NSV).
3.1.10
transaction ID
TID
parameter to link a sent request with a received response
3.1.11
property data counter
PDC
indication of the size of the NDT region

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ISO/IEC 14543-4-3:2015 – 9 –
© ISO/IEC 2015
3.2 Abbreviations
DNOJ Destination NECD ObJect
IP Internet Protocol
NDATA NECD DATA
NDT NECD DaTa
NECD Network Enhanced Control Device
NHD NECD HeaDer
NPC NECD Property Counters
NSV NECD SerVice
OPC Processing Object Property Counter
PDC Property Data Counter
SNOJ Source NECD ObJect
TID Transaction ID
UDP User Datagram Protocol
4 Conformance
Enhanced control devices of HES Class 1 that claim conformance to this International
Standard shall:
• send, receive and process application layer protocol data units as specified in Clause 6;
• provide application services specified in 6.6 that may be needed by devices for which the
application is intended.
5 Services of the application layer
5.1 Positioning in communications layers
5.1.1 General
The NECD communications processing block is positioned between application and lower
communications layers. This standard provides the specifications of “NECD communications
processing block”. In Figure 1, the shaded area shows the communications middleware block
to be specified.
OSI layer
7
Application
Device objects Profile objects
6
NECD
communications
NECD communications
middleware
5
processing block
4
3
Lower communications layers
(Layers 1 to 4 not defined)
2
1
IEC

Figure 1 – Communications middleware

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© ISO/IEC 2015
As Figure 1 shows, the NECD communications middleware block specified in this standard
corresponds to the NECD communications processing block, which is specified as a function
that is independent of layers 1 to 4. The NECD communications processing block sends and
receives a NECD frame specified in Clause 6. There are two kinds of messages: unicast and
broadcast.
Unicast transmission specifies a destination address that is in layer 4 or lower, and transmits
the NECD frame to a specific NECD node. Broadcast transmission specifies a destination
address that is in layer 4 or lower, and transmits the NECD frame to all the NECD nodes in a
subnet. In case of UDP/IP, refer to 5.1.2.
When the transmission system of layer 4 or lower layer corresponds to neither multicasting
nor broadcasting, it shall transmit to all the NECD nodes in a subnet using multiple unicast
transmissions to achieve the equivalence of a broadcast transmission. The destination
address and the method for setting it are not specified, but shall be defined for every lower
communications layer.
Security is not specified in the NECD communications processing block. Security standard
technologies in layer 4 or lower can be applied as necessary.
5.1.2 When using UDP in layer 4 and IP in layer 3
When using UDP/IP, the following addresses and ports shall be supported.
Each NECD node has an IP address. The IP address range and acquisition method are not
specified. If NECD frames are transferred by UDP packets, the destination port number of
UDP packets shall be 3 610. The source port number is not specified. For general broadcast
(simultaneous transmission), NECD frames are mapped on IP multicast packets and
transferred. For IPv4, the destination multicast address value shall be 224.0.23.0. For IPv6,
ff02::1 (all-node multicast address) shall be used.
5.2 Service primitives of the application layer
5.2.1 General
The NECD objects are introduced with two objectives:
• compartmentalisation of the functions of devices connected to the NECD network;
• modularisation of communications between devices to enable application software
developers to utilise NECD communications without having to consider detailed
specifications.
The NECD objects are processed in the NECD communications processing block. Control
content exchanged in communications can be classified into those relating to functions unique
to each device and those relating to data profiling other than the functions unique to each
device. In NECD, all of these are specified as NECD objects, and control and data exchange
are achieved to enable their manipulation.
Each NECD object has some properties. The various unique functions possessed by an
NECD node are represented as NECD properties. Devices are operated by reading or writing
the NECD properties of the NECD object in the relevant NECD node.
NECD objects are defined by the following specifications: object type (codes are specified in
6.5 as NOJ); the properties possessed by each object (codes are specified in 6.8 as NPC);
and the services for those properties (codes are specified in 6.6 as NSV).
NOTE It is assumed that each NECD node would have more than one NECD object of the same type (e.g., two
human detection sensor objects in the same node), and that identification could be performed by stipulating a
specific code.

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