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GBZ41912-2022: Low-voltage switchgear and controlgear - Guidance for the development of embedded software
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/Z 41912-2022 | English | 384 |
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Low-voltage switchgear and controlgear - Guidance for the development of embedded software
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GB/Z 41912-2022
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Basic data | Standard ID | GB/Z 41912-2022 (GB/Z41912-2022) | | Description (Translated English) | Low-voltage switchgear and controlgear - Guidance for the development of embedded software | | Sector / Industry | National Standard | | Classification of Chinese Standard | K30 | | Classification of International Standard | 29.130.20 | | Word Count Estimation | 22,269 | | Date of Issue | 2022-10-14 | | Date of Implementation | 2023-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GBZ41912-2022: Low-voltage switchgear and controlgear - Guidance for the development of embedded software
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
GB /Z 41912-2022
Low-voltage switchgear and controlgear -- Guidance for the development of embedded software
ICS 29.130.20
CCSK30
National Standardization Guiding Technical Document of the People's Republic of China
Low-voltage switchgear and controlgear
Embedded Software Development Guide
(IEC TR63201.2019, IDT)
Published on 2022-10-12
2023-05-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Risk assessment and identification of main functions 3
5 Design Management 3
6 Manual parameterization of embedded software 6
7 Design Lifecycle 7
Reference 16
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is equivalent to IEC TR63201.2019 "Guidelines for the Development of Embedded Software for Low-Voltage Switchgear and Control Equipment". file class
The type is adjusted from the IEC technical report to my country's national standardization guiding technical document.
This document has undergone minimal editorial changes.
--- Substitute GB/T 8566-2007 for the informative reference IEC 12207.2008;
--- Replace the informative reference IEC 61508 (all parts) with GB/T 20438 (all parts);
--- Replace the IEC 61511-1.2016 cited for information with GB/T 21109.1-2007;
--- Replace the IEC 62061 cited for information with GB 28526;
--- Replace the IEC Guide 116.2018 for informative references with GB/T 34924-2017.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Standardization Technical Committee for Low-voltage Electrical Appliances (SAC/TC189).
This document was drafted by. Shanghai Electric Apparatus Research Institute, Shanghai Chint Intelligent Technology Co., Ltd., Changshu Switch Manufacturing Co., Ltd.
Cooked Switch Factory), Zhejiang Tianzheng Electric Co., Ltd., Schneider Electric (China) Co., Ltd. Shanghai Branch, Garcia Electronics Co., Ltd.
Co., Ltd., Shengli Oilfield Hengyuan Electric Co., Ltd., Jiangsu Mite Internet of Things Technology Co., Ltd., Zhejiang Juchuang Intelligent Technology Co., Ltd.
Company, Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd.
The main drafters of this document. Huang Jingye, Zheng Jiexin, Wang Limin, Xi Shenyun, Tao Xiaodong, Shuangbing, Zhang Xinyu, Guan Hongwu, Shi Mengyun, Wu Guichu,
Xue Ji and Wang Jun.
Introduction
At present, more and more programmable electronic products are integrated in switchgear and control device. For example, soft starters, electronic overloads
Relays, circuit breakers with electronic trip units, proximity switches with built-in microcontrollers and accessories such as expansion modules and control panels, etc.
Programmable electronics with embedded software (commonly referred to as firmware) are used. This embedded software usually supports the main functions provided by the device
functions, such as overcurrent protection and other important functions (such as alarm detection for monitoring equipment).
The integration of embedded software in switchgear and control devices should not degrade the integrity of their primary functions compared to purely electromechanical devices.
Therefore, this document provides the minimum standard requirements for embedded software.
This document refers to the existing best practice standard GB/T 20438.3-2017 for developing embedded software automation security functions. Function
Safety methods are mainly used in machinery, automotive, automation and process automation, where the safety function is implemented by multiple components, these
Components should match consistently and ensure a level of integrity when combined. In other fields, such as power distribution and power control systems, overcurrent tripping, residual
Critical functions such as current tripping, load monitoring, etc. are subject to installation regulations and coordination rules related to system safety and reliability. Therefore, this paper
It can be considered as good practice according to GB/T 20438.3-2017.
This document will also provide an updated approach to Annex SE of UL489.2016.
This document is intended to provide guidance on.
--- aspects of risk assessment related to embedded software;
--- Embedded software evaluation methods;
---Software Architecture;
--- Basic coding rules;
--- Measures to control software errors;
--- Software verification and its relationship to equipment or system verification.
In this document, the term "software" is used as a broad term for embedded software.
Low-voltage switchgear and controlgear
Embedded Software Development Guide
1 Scope
This document presents information and recommended minimum requirements for embedded software that supports switchgear and control
The realization of the main function of the equipment in the whole life cycle. This document also includes parametric requirements and basic requirements for secure coding standards.
If the content of this document is not covered in the product standard, this document can be used as a supplementary requirement of the product standard.
This document applies to new product developments or significant improvements to existing products.
This document does not cover GB 28526, GB/T 16855.1 and GB/T 20438 (all parts) in the mechanical or automatic control system
Functional safety requirements, nor do they include cybersecurity risk requirements in ISO 27005 and IEC 62443 (all parts). This document is only for
Some examples of safe coding rules are given.
NOTE. IEC TS63208.2020 has been published, which specifies networks in switchgear and controlgear based on ISO 27005 and IEC 62443 (all parts)
safety measures.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 5271.1-2000 Information Technology Vocabulary Part 1.Basic Terminology (eqvISO /IEC 2382-1.1993)
Note. There is no technical difference between the quoted content of GB/T 5271.1-2000 and ISO /IEC 2382-1.1993.
3 Terms and Definitions
The terms and definitions defined in GB/T 5271.1-2000 and the following apply to this document.
The IEC and ISO terminology databases can be accessed at.
3.1
embeddedsoftwareembeddedsoftware
The software provided by the manufacturer is an integral part of the product and may be partially modified.
Note 1.Both firmware and system software are examples of embedded software.
Note 2.Embedded software can be upgraded through whole or partial updates.
3.2
Based on computer technology, it is generally composed of hardware, software and its input and (or) output units.
Example. The following are programmable electronic devices.
---microprocessor;
--- Microcontroller;
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