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GB/T 38844-2020 English PDF

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US$409.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38844-2020: Smart factory - General specification for time synchronization, time management and test in industry automation system
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38844-2020	409	Add to Cart	5 days	Smart factory - General specification for time synchronization, time management and test in industry automation system	Valid

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GB/T 41252 GB/T 41295.1 GB/T 41295.2 GB/T 38845 GB/T 38843

Basic data

Standard ID: GB/T 38844-2020 (GB/T38844-2020)
Description (Translated English): Smart factory - General specification for time synchronization, time management and test in industry automation system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N10
Classification of International Standard: 25.040
Word Count Estimation: 22,25
Date of Issue: 2020-06-02
Date of Implementation: 2020-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38844-2020: Smart factory - General specification for time synchronization, time management and test in industry automation system

---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.
Smart factory - General specification for time synchronization, time management and test in industry automation system ICS 25.040 N10 National Standards of People's Republic of China Smart factory industrial automation system clock synchronization, General specification for management and measurement 2020-06-02 release 2020-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms, definitions and abbreviations 1 3.1 Terms and definitions 1 3.2 Acronyms 3 4 Network 3 4.1 Smart Factory Network 3 4.2 Smart factory clock synchronization networking 5 5 Clock synchronization 7 5.1 Clock synchronization system 7 5.2 Technical requirements 7 5.3 Performance requirements 10 5.4 Environmental test requirements 11 6 Clock Management 12 6.1 Overview 12 6.2 Technical requirements 12 6.3 Master Clock and Slave Clock Self-Test Status Information 12 6.4 Time synchronization monitoring of clock synchronization equipment and timed equipment 12 7 Clock measurement 14 7.1 Overview 14 7.2 Measuring equipment and requirements 14 7.3 Measurement content and requirements 14 Reference 17 Figure 1 Smart Factory Networking Figure 4 Figure 2 Smart factory clock synchronization networking diagram 5 Figure 3 Enterprise layer clock synchronization topology Figure 6 Figure 4 Topology clock synchronization topology Figure 6 Figure 5 Clock synchronization topology of the control layer Figure 6 Figure 6 Device layer clock synchronization topology Figure 7 Figure 7 Output signal measurement method 15 Figure 8 Method of measuring time accuracy 15 Figure 9 Measurement method of punctuality 15 Figure 10 Transmission delay compensation measurement method 16 Figure 11 Stability measurement method 16 Table 1 Comparison of time synchronization signal, interface type and time synchronization error 10

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Machinery Industry Federation. This standard is under the jurisdiction of the National Industrial Process Measurement Control and Automation Standardization Technical Committee (SAC/TC124). This standard was drafted by. Beijing Dongtu Technology Co., Ltd., Institute of Comprehensive Technology and Economy of Machinery Industry Instruments, China Electronics Technical Standardization Research Institute, Beijing Heli System Engineering Co., Ltd. The main drafters of this standard. Li Ping, Xue Baihua, Zhang Xuejing, Yao Lianfang, Xi Qiuxia, Fan Jingzhi, Liu Xiaojing. Smart factory industrial automation system clock synchronization, General specification for management and measurement

1 Scope

This standard specifies the basic composition, configuration and networking principles of the clock synchronization system for smart factories and industrial automation systems. It describes the terms, definitions, functions, requirements of clock synchronization systems, and the methods of clock synchronization system management. It also specifies the clock synchronization system Requirements for measurement test conditions, measurement items, measurement methods, measurement targets and measurement cycles. This standard applies to working on the basic reference model of open system interconnection specified in GB/T 9387.1 layer 1 ~ layer 2 or layer 1 ~ layer 3, And the physical layer complies with IEEE802.3 specifications, the data link layer complies with IEEE802.1D and GB/T 15629.2 specifications, and the network layer complies with Industrial Ethernet switch specified by the Internet Engineering Task Force (IETF) IP protocol cluster.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 6107 Interface between data terminal equipment and data circuit termination equipment using serial binary data exchange GB/T 9387.1 Basic reference model for open system interconnection of information technology Part 1.Basic model GB/T 13729-2019 Telecontrol terminal equipment GB/T 15629.2 Particular requirements for local area network and metropolitan area network for remote communication and information exchange between information technology systems Part 2 Points. logical link control GB/T 17626.2-2018 Electromagnetic Compatibility Test and Measurement Technology Electrostatic Discharge Immunity Test GB/T 17626.3-2016 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test GB/T 17626.4-2018 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test GB/T 17626.5-2019 EMC test and measurement technology surge (shock) immunity test GB/T 17626.8-2006 EMC test and measurement technology power frequency magnetic field immunity test GB/T 17626.9-2011 electromagnetic compatibility test and measurement technology pulse magnetic field immunity test GB/T 17626.10-2017 Electromagnetic compatibility test and measurement technology Damped oscillating magnetic field immunity test Accurate clock synchronization protocol of GB/T 25931 network measurement and control system IEEE802.1D IEEE local area network and metropolitan area network standard medium access control (MAC) bridge [IEEEStandardforLocal andmetropolitanareanetworks.MediaAccessControl(MAC)Bridges] IEEE802.3 IEEE Information Technology Standard Specific Requirements for Local Area Networks and Metropolitan Area Networks Part 3.Carrier Detection with Collision Detection Listening to multiple access methods and physical layer specifications [IEEEStandardforInformationtechnology-Localandmetropolitan areanetworks-Specificrequirements-Part 3.CarrierSenseMultipleAccesswithColisionDetection (CSMA/CD)AccessMethodandPhysicalLayerSpecifications] IRIGStandard200-04 IRIG serial clock code format (IRIGSerialTimeCodeFormats) 3 Terms, definitions and abbreviations 3.1 Terms and definitions The following terms and definitions apply to this document. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38844-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38844-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 38844-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38844-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.