ANSI ASHRAE STD 231-2026 建筑环境控制序列的控制描述语言（高清含书签）

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ANSI/ASHRAE Standard 231-2026

A Control Description

Language for Building

Environmental

Control Sequences

Approved by ASHRAE and the American National Standards Institute on February 27, 2026.

This Standard is under continuous maintenance by a Standing Standard Project Committee (SSPC) for which the Standards

Committee has established a documented program for regular publication of addenda or revisions, including procedures for

timely, documented, consensus action on requests for change to any part of the Standard. Instructions for how to submit a

change can be found on the ASHRAE® website (www.ashrae.org/continuous-maintenance).

The latest edition of an ASHRAE Standard may be purchased from the ASHRAE website (www.ashrae.org) or from

ASHRAE Customer Service, 180 Technology Parkway, Peachtree Corners, GA 30092. E-mail: orders@ashrae.org. Fax:

678-539-2129. Telephone: 404-636-8400 (worldwide), or toll free 1-800-527-4723 (for orders in US and Canada). For

reprint permission, go to www.ashrae.org/permissions.

SPECIAL NOTE

This American National Standard (ANS) is a national voluntary consensus Standard developed under the auspices of ASHRAE. Consensus is defined

by the American National Standards Institute (ANSI), of which ASHRAE is a member and which has approved this Standard as an ANS, as

“substantial agreement reached by directly and materially affected interest categories. This signifies the concurrence of more than a simple majority,

but not necessarily unanimity. Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.”

Compliance with this Standard is voluntary until and unless a legal jurisdiction makes compliance mandatory through legislation.

ASHRAE obtains consensus through participation of its national and international members, associated societies, and public review.

ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The Project

Committee Chair and Vice-Chair must be members of ASHRAE; while other committee members may or may not be ASHRAE members, all

must be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all Project Committees.

The Senior Manager of Standards of ASHRAE should be contacted for

a. interpretation of the contents of this Standard,

b. participation in the next review of the Standard,

c. offering constructive criticism for improving the Standard, or

d. permission to reprint portions of the Standard.

DISCLAIMER

ASHRAE uses its best efforts to promulgate Standards and Guidelines for the benefit of the public in light of available information and accepted

industry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components, or systems

tested, installed, or operated in accordance with ASHRAE’s Standards or Guidelines or that any tests conducted under its Standards or Guidelines

will be nonhazardous or free from risk.

ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDS

ASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testing for rating purposes, by

suggesting safe practices in designing and installing equipment, by providing proper definitions of this equipment, and by providing other information

that may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by the need for them, and conformance

to them is completely voluntary.

In referring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,

that the product has been approved by ASHRAE.

ASHRAE Standing Standard Project Committee 231

Cognizant TC: 6.9, Evaporative Cooling

SPLS Liaison: Charles S. Barnaby

Paul W. Ehrlich,* Chair Anthony Bruno*David M. Guerrant* Matthew Steen

David M. Amos*Jayson F. Bursill Gregory P. Jaman Paul B. Switenki

Stephane Audrin*Salvatore Cataldi*Jiajun Liao* Steven T. Taylor*

Kimberly A. Barker*Yan Chen* Alec Manfre* Scott P. West*

Christopher Battisti Layne A. Clemen Ed G. Morris* Fiona Woods

Joel Bender Brent R. Eubanks* John Nelson Bei Zhang

Nate Benes*Richard A. Farmer* Jamie Nickels Xiaohui Zhou*

Christopher F. Benson*Brennan Fentzlaff Aaron Opatz

Ian Bonadeo*Ken Gilbert Paul Raftery

Ashleigh Brown Kurt Gokbudak* David Robin

* Denotes members of voting status when the document was approved for publication

ASHRAE STANDARDS COMMITTEE 2025–2026

Adrienne G. Thomle, Chair Susanne Dormann Paul A. Lindahl, Jr. Paolo M. Tronville

Jennifer A. Isenbeck-Pille, Vice Chair Drake H. Erbe Kenneth A. Monroe Douglas K. Tucker

Anthony M. Abate Marcus Hassen Philip J. Naughton Thomas E. Watson

Omar A. Abdelaziz William M. Healy Kathleen Owen David P. Yuill

Charles S. Barnaby Jaap Hogeling Michael P. Patton Patrick C. Marks, BOD ExO

Hoy R. Bohanon Satish N. Iyengar Karl L. Peterman Devin A. Abellon, CO

Kelley P. Cramm Phillip A. Johnson Christopher J. Seeton

Abdel K. Darwich Tatsuro Kobayashi Russell C. Tharp

Ryan Shanley, Senior Manager of Standards

CONTENTS

ANSI/ASHRAE Standard 231-2026

A Control Description Language for Building Environmental Control Sequences

SECTION PAGE

Foreword............................................................................................................................................................................. 2

1 Purpose.......................................................................................................................................................................2

2 Scope .......................................................................................................................................................................... 2

3 Definitions.................................................................................................................................................................... 2

4 How to Use this Document.......................................................................................................................................... 3

5 Control Description Language..................................................................................................................................... 3

5.1 Basic Elements of CDL ....................................................................................................................................... 3

5.2 Syntax ................................................................................................................................................................. 3

5.3 Units ....................................................................................................................................................................4

5.4 Permissible Data Types ......................................................................................................................................4

5.5 Encapsulation of Functionality ............................................................................................................................ 6

5.6 Elementary Blocks .............................................................................................................................................. 6

5.7 Connectors......................................................................................................................................................... 7

5.8 Composite Blocks ............................................................................................................................................... 7

5.9 Extension Blocks............................................................................................................................................... 17

5.10 Replaceable Blocks...........................................................................................................................................17

5.11 Extension of a Composite Block........................................................................................................................ 19

5.12 Model of Computation ....................................................................................................................................... 20

5.13 Metadata ...........................................................................................................................................................20

5.14 Inferred Properties............................................................................................................................................. 20

5.15 Semantic Information ........................................................................................................................................ 21

6 Control Exchange Format ......................................................................................................................................... 25

6.1 Introduction ...................................................................................................................................................... 25

6.2 Classes and Properties .................................................................................................................................... 25

6.3 Generating CXF from an Instance of a CDL Class .......................................................................................... 27

6.4 Source of a CXF Translation............................................................................................................................ 28

6.5 Representing Instances in CXF ....................................................................................................................... 28

6.6 Handling Arrays and Expressions .................................................................................................................... 28

6.7 ExtensionBlocks............................................................................................................................................... 28

7 Elementary Blocks..................................................................................................................................................... 29

7.1 Introduction ....................................................................................................................................................... 29

7.2 Specifying Elementary Blocks........................................................................................................................... 29

7.3 Symbols ............................................................................................................................................................ 29

7.4 Elementary Blocks ............................................................................................................................................ 29

7.5 Elementary Block Descriptions ......................................................................................................................... 35

7.6 Predefined Constants......................................................................................................................................117

7.7 Predefined Enumerations................................................................................................................................117

8 Normative References............................................................................................................................................. 119

Informative Appendix A: Overview of Standard............................................................................................................ 120

Informative Appendix B: Informative References......................................................................................................... 125

Supporting Files: data.ashrae.org

NOTE

Approved addenda, errata, or interpretations for this standard can be downloaded free of charge from the ASHRAE website

at www.ashrae.org/technology.

ASHRAE is a registered trademark of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

ANSI is a registered trademark of the American National Standards Institute.

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摘要：

本资源提供ANSI ASHRAE STD 231-2026标准的完整高清电子版，内含详细书签便于快速查阅。该标准正式名称为“建筑环境控制序列的控制描述语言”，旨在为暖通空调及建筑自动化系统中的控制序列提供一种标准化、机器可读的描述方法。通过统一控制逻辑的表达方式，该标准帮助工程师、楼宇管理与软件开发商在设计与实施阶段准确沟通控制意图，避免歧义，提升系统调试与运维效率。本次发布的高清版本保留了原版图表与格式，并附带结构化书签，适用于相关领域的规范研究、工程应用以及专业学习。

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ANSI ASHRAE STD 231-2026 建筑环境控制序列的控制描述语言（高清含书签）

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