ISO/IEC 14543-4-1:2008 情報技術—家庭用電子システム（HES）アーキテクチャ—パート4-1：通信層—HESクラス1のネットワーク拡張制御デバイスのアプリケーション層 | ページ 6

3.1.1

application data

ADATA

data region for messages exchanged by communication middleware

Note 1 to entry: Maximum size is 256 bytes.

3.1.2

application data counter

ADC

indicates the size of the ADATA region

Note 1 to entry: The size is variable in 1-byte increments.

3.1.3

application object

AOJ

model of information to be disclosed to the network from information owned by the 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.

Note 2 to entry: AOJs are used when class or instance is not considered.

3.1.4

application programming interface

API

assembly of interface functions for middleware

Note 1 to entry: API makes it easy to operate middleware for designers.

3.1.5

application property code

APC

code value related to application property

3.1.6

application property value data

APD

data value related to application property code (APC), such as status notification or specific setting and control by an application service code (ASC)

Note 1 to entry: Detailed specifications are provided for the size, code value, etc. of the APD for each APC.

3.1.7

application service code

ASC

code value related to application service

3.1.8

communication middleware block

this middleware is arranged from data link layer to application layer and performs communications processing according to the protocol specified in ISO/IEC 14543-4-1 and ISO/IEC 14543-4-2.

Note 1 to entry: The major features of ISO/IEC 14543-4 are implemented by communications middleware.

3.1.9

communication processing block

one processing block for the communications middleware; this block performs communication protocol processing to facilitate remote device control/monitoring processing for application software, stores information for the above and controls various information on the self-device as well as other device statuses

3.1.10

DA data

node address of the destination of messages between lower-layer communications software

3.1.11

data link address

DLA

address permitting unique identification of a node in a home network

Note 1 to entry: This is a logical address that is defined separately from the node address native to lower-layer communication software; it consists of a NetID and NodeID.

3.1.12

data link data

data that is composed of DHD, SDLA, DDLA, ADC and ADATA

3.1.13

data link frame

frame that is composed of DDC, DHD, SDLA, DDLA, ADC and ADATA

3.1.14

data link data counter

DDC

specifies order of split message, indicates end split of message and stipulates splittransmission message identifier

3.1.15

data link header

DHD

3.1.16

data link split frame

messages that are exchanged between protocol difference absorption processing blocks

3.1.17

device ID

unique number assigned to each node

Note 1 to entry: The device ID is retained and managed by the communications middleware block and normally assigned by application software.

3.1.18

domain

range on the network within which information transmission is logically guaranteed

Note 1 to entry: Generally, it is thought that property and security control, including homes and stores, use the same range as a domain, but the domain can be defined by system.

3.1.19

hardware address

address defined based on a medium-specific addressing scheme, like IEE802 address; this is a unique value for a node among the same kind of the transmission medium

3.1.20

NetID

SUBNET identifier that is also a component of a data link address

3.1.21

node

communication node conforming to ISO/IEC 14543-4

Note 1 to entry: In ISO/IEC 14543-4, this is a communications function to be uniquely identified by a data link address. There is no distinction between the application functions of nodes. The term node is used to describe the function of one communication terminal.

3.1.22

node address

address to implement layer-2 communication in transmission media

Note 1 to entry: In ISO/IEC 14543-4, this corresponds to the own hardware address.

3.1.23

NodeID

identifier used to identify a node uniquely within the SUBNET

Note 1 to entry: This is a logical address converted from the node address native to the lower-layer communications software. This is also a component of data link address.

3.1.24

SA data

node address of the source of messages between lower-layer communications software

3.1.25

SUBNET

group of nodes using the same lower-layer communications protocol

Note 1 to entry: Each SUBNET has a NetID; different SUBNETS can be connected by a data link router.