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GB/T 29001.3-2012 English PDF

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GB/T 29001.3-2012: Numerical control system of machine tool -- Protocol specifications for NCUC-Bus fieldbus -- Part 3: Data link layer
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GB/T 29001.3-2012English529 Add to Cart 4 days [Need to translate] Numerical control system of machine tool -- Protocol specifications for NCUC-Bus fieldbus -- Part 3: Data link layer Valid GB/T 29001.3-2012

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Basic data

Standard ID GB/T 29001.3-2012 (GB/T29001.3-2012)
Description (Translated English) Numerical control system of machine tool -- Protocol specifications for NCUC-Bus fieldbus -- Part 3: Data link layer
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J50
Classification of International Standard 25.040.20
Word Count Estimation 23,291
Quoted Standard GB/T 9387.1-1998; GB/T 29001.1-2012; GB/T 29001.4-2012; IEEE STD 802.3-2005
Regulation (derived from) National Standards Bulletin No. 41 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the NCUC-Bus data link layer between devices provide basic, effective communication rules of the packets, while the definition of the NCUC-Bus data link layer protocol. This section applies to CNC system. Other uses of the NC syste

GB/T 29001.3-2012: Numerical control system of machine tool -- Protocol specifications for NCUC-Bus fieldbus -- Part 3: Data link layer


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Numerical control system of machine tool Protocol specifications for NCUC-Bus fieldbus Part 3. Data link layer ICS 25.040.20 J50 National Standards of People's Republic of China CNC machine tools NCUC-Bus Fieldbus protocol specification Part 3. Data link layer Part 3. Datalinklayer Issued on. 2012-12-31 2013-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions, abbreviations 1 3.1 Terms and definitions 3.2 Acronyms 6 4 6 Overview of the Data Link Layer 5 data link layer packet format and type of service 7 5.1 Data frame definition and packaging 7 5.2 delimitation and frame synchronization field 8 Addressing and identification 5.3 8 Create and manage link connection 9 6 6.1 link connection establishment 9 Transformations 6.2 data link 11 6.3 Data link failure 11 13 data link layer 7 7.1 Link Transport Service 13 7.2 link transmission flow control 14 8 error detection and recovery 15 8.1 Error detection 15 15 8.2 Error Correction 8.3 NCUC-Bus link fault tolerance 15 8.4 NCUC-Bus communication failure 16 References 18

Foreword

GB/T 29001 "CNC system NCUC-Bus Fieldbus protocol specification" is divided into the following sections. --- GB/T 29001.1 General; --- GB/T 29001.2 physical layer; --- GB/T 29001.3 data link layer; --- GB/T 29001.4 application layer; --- GB/T 29001.5 test; --- GB/T 29001.6 security; This section GB/T 29001 Part 3. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by China Machinery Industry Federation. This part of CNC machine tools by the National Technical Committee of Standardization System (SAC/TC367) centralized. This section is drafted. Wuhan Huazhong Numerical Control Co., Ltd., Dalian Koyo Technology Engineering Company Limited, Shenyang high-precision CNC technology Ltd., Guangzhou NC Equipment Co., Ltd., Zhejiang Electric Technology Co., Ltd. Control. The main drafters of this section. SONG Bao, Tang Xiaoqi, Chen Tian Hang, Jin Jian, He Yingwu, Zhang Yujie, Chen Hu, Wang Sheng-wen, Yang Dongsheng, Hu Concord, Mo Yuan Jin, Hu Yi, FENG Dong-qin.

Introduction

0.1 Overview GB/T 9387.1-1998 defines a "three-tier" Fieldbus reference model reference model will be broken down into a series of interconnected regional standardization Level specification, each with range management. This part is the data link CNC system NCUC-Bus Fieldbus protocol specification Layer, part of the standard series and Basic Reference Model defined in the section on the other. 0.2 CNC system Fieldbus Data Link Layer Overview NCUC-Bus is a digital, serial field bus for CNC system each component interconnect traffic. This part of the Regulation Given the data link layer is located between the physical layer and application layer will probably go wrong physical layer provides the physical connection transformed into logical error Original data data link and application layer data encapsulation. The data link layer functions as bit stream provided by the physical layer, to achieve reliable data transmission node (node) between. Data Link Layer data transmitted in frame units, each frame comprising a number of data and control information necessary. The data link layer is responsible for establishing, maintaining and releasing data connection link. Figure 1 illustrates the NCUC-Bus physical layer, data link layer And the relationship between the application layer. Relations with other data link layer between layers in Figure 1 NCUC-Bus This part mainly based on the data link entity, providing a set of steps in the implementation of the communication time expression rules. These rules are designed to The following various design and development to provide a reliable basis for. a) as a guide to designers and implementers; b) use in device testing and procurement; c) access to the system as part of the development environment conventions. CNC machine tools NCUC-Bus Fieldbus protocol specification Part 3. Data link layer

1 Scope

GB/T 29001 specifies the CNC system NCUC-Bus (NCUnionofChinaFieldBus, NC Union bus, the following Acronym NCUC-Bus) data types and basic data transmission, and to establish a CNC system for industrial automation NCUC-Bus Automation control process and the development of communication protocol specification. This section GB/T 29001 specifies the NCUC-Bus data link layer between the basic device with the effectiveness of the message through Letter rules also define the NCUC-Bus data link layer protocol. This section applies to CNC machine tools. Other uses of the NC system can refer to this section. Note. This section is based on the following terms set forth in an abstract way the externally visible service NCUC-Bus data link layer provides. primitives a) Service Mutual c) between these actions and events; actions and events; b) the primitive actions and various parameters associated with each event, and the form they use Relationships, and their effective order.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 9387.1-1998 Information technology - Open Systems Interconnection - Basic Reference Model - Part 1. Basic model (idt ISO / IEC 7498-1.1994) GB/T 29001.1-2012 CNC system NCUC-Bus Fieldbus protocol specification - Part 1. General GB/T 29001.4-2012 CNC system NCUC-Bus Fieldbus protocol specification - Part 4. Application Layer Inter IEEEStd802.3-2005 IT system communication and information exchange between LAN and MAN special requirements of Part 3 Score. with collision detection Carrier Sense Multiple Access from (CSMA/CD) access method and physical layer specifications (Informationtechnology-Tele- communicationsandinformationexchangebetweensystems-Localandmetropolitanareanetworks-Specific requirements-Part 3. Carriersensemultipleaccesswithcolisiondetection (CSMA/CD) accessmethodand physicallayerspecifications) 3 Terms and definitions, abbreviations 3.1 Terms and Definitions GB/T 29001.1 defined and the following terms and definitions apply to this document. 3.1.1 Agreement protocol The communication system for data exchange in the data format, error correction method and timing relationships conventions. [GB/T 29001.1-2012, the definition 3.1.1]

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