ISO 16484-5:2022 PDF

Name: ISO 16484-5:2022 — Building automation and control systems (BACS) — Part 5: Data communication protocol
SKU: ISO 16484-5:2022
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Building automation and control systems (BACS) — Part 5: Data communication protocol

Название (английский):

ISO 16484-5:2022

Building automation and control systems (BACS) — Part 5: Data communication protocol

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 1451
Дата публикации:: 1 сентября 2022 г.
Издание:: ISO IS 16484 edition 7 version 1
ICS:: 35.240.67

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Описание (английский):

The purpose of this document is to define data communication services and protocols for computer equipment used for monitoring and control of HVAC&R and other building systems and to define, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16484-5:2022 - Building automation and control systems (BACS) - Part 5: Data communication protocol - defines the data communication services, protocols and an abstract object‑oriented information model used for monitoring and controlling HVAC&R and other building systems. Published by ISO, this standard specifies the BACnet protocol architecture and the representation of control devices as collections of standardized objects to enable interoperable digital control across building systems.

Key topics and technical requirements

BACnet protocol architecture: collapsed architecture, network topology and security considerations.

Application layer: APDU/APDU segmentation, application protocol state machines, time‑sequence diagrams and service conventions for reliable device-to-device services.

Network layer: service specification, PDU structure, multicast/multiple‑recipient messages, routing behavior and procedures for BACnet routers.

Data link / physical layers: mappings and requirements for multiple media including Ethernet (ISO 8802-3), ARCNET, MS/TP (Master‑Slave/Token‑Passing), Point‑to‑Point (PTP) and LonTalk. Includes MAC/LLC mappings, physical media parameters, CRC and COBS encoding for serial links.

Object model: detailed object types and attributes (e.g., Analog Input/Output/Value, Binary Input/Output/Value, Schedule, Trend Log, Device, Access Control, Life Safety, Event Log, Program, Loop and many more). The model defines how device features are exposed and controlled via standardized properties and services.

Interoperability & implementation guidance: device design choices, routers, half‑routers, repeaters and medium access control procedures to ensure predictable communication behavior.

Practical applications and users

ISO 16484-5 (BACnet) is used to design, specify, implement and integrate building automation systems such as:

HVAC control, refrigeration and energy management

Lighting control and scheduling

Access control and life‑safety integration

Trend logging, fault detection and analytics

Primary users include:

Building automation engineers and system integrators

BACS manufacturers and firmware developers

Facility managers and commissioning teams

Consultants, specifiers and test laboratories focused on interoperability and compliance

Related standards

ISO 16484 series (other Parts of BACS standards) and international IEC/IEEE networking/physical layer standards referenced within (e.g., ISO 8802‑3 for Ethernet).

Industry protocol family: commonly referred to as BACnet, the de facto data communication protocol for building automation.

ISO 16484-5:2022 is essential for anyone implementing interoperable, object‑oriented building control networks and seeking standardized communication across diverse building systems.

ISO 16484-5:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 8802-3:1989

Information processing systems — Local and metropolitan area networks — Part 3: Carrier sense multiple access…

SIST EN ISO 16484-5:2022

Building automation and control systems (BACS) - Part 5: Data communication protocol (ISO 16484-5:2022)

BS EN ISO 16484-4:2025

Building automation and control systems (BACS). Control applications.