GB/T 41970-2022Interconnection interface specification of numerical control machine tools in smart factory (English PDF)
智能工厂数控机床互联接口规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 12, 2022
Implementation date
October 12, 2022
Scope
GB/T 41970-2022 is the English-translated version of 智能工厂数控机床互联接口规范.
GB/T 41970-2022 is the Chinese national interconnection interface specification, called NC-Link, for numerical control machine tools in a smart factory.
It defines a three-layer architecture of application system, NC-Link interface layer and machine tool, with the adapter and agent components and their interaction rules; the CNC machine tool model, built from root, device, component, data, sampling channel and intrinsic method objects; the data items, including physical quantity, general and private items; and some thirty data transmission interfaces for registration, terminal and model detection, model setting, data query and setting, data sampling, status notification, dynamic sampling, built-in method calls and event registration, in request/response and subscribe/publish modes.
A further clause covers testing and evaluation. It applies to CNC machine tools and their ancillary equipment. Issued on 12 October 2022, it has applied since the same date.
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Document preview — GB/T 41970-2022
National Standard of the People's Republic of China
- ICS
- 25.040.20
- Classification
- J 50
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Abbreviations
- 5 General requirements
- 5.1 CNC machine tool interconnection interface architecture
- 5.1.1 Composition
- 5.1.2 Application system layer
- 5.1.3 NC-Link interface layer
- 5.1.4 CNC machine tool layer
- 5.1.5 Connection relationship
- 5.2 Functional requirements for adapters, agents and data transfer interfaces
- 5.2.1 Adapter requirements
- 5.2.2 Proxy requirements
- 5.2.3 Functional requirements of data transmission interface
- 5.3 CNC machine tool requirements
- 5.4 General technical requirements for interface usage
- 5.5 Interface information exchange requirements
- 5.5.1 Overview
- 5.5.2 Uplink Information Interaction
- 5.5.3 Downlink Information Interaction
- 5.5.4 General requirements for information exchange
- 5.5.5 Adapter-Agent Interaction Requirements
- 5.5.6 Interaction requirements between the adapter and the CNC machine tool
- 5.5.7 Interaction requirements between application system and agent
- 6 CNC machine model definition
- 6.1 Model Composition
- 6.2 Object definition
- 6.2.1 Data types
- 6.2.2 Root Object
- 6.2.3 Device Object
- 6.2.4 Component Objects
- 6.2.5 Data Objects
- 6.2.6 Sampling Channel Object
- 6.2.7 Intrinsic method object
- 7 Data item definition
- 7.1 Overview
- 7.2 Data items of device objects
- 7.3 Data items of component objects
- 7.4 Data items of data objects
- 8 Data transmission interface definition
- 8.1 Overview of Data Transfer Interface
- 8.1.1 Communication method
- 8.1.2 Data transmission interface list
- 8.1.3 Message identifier
- 8.1.4 Terminal identifier
- 8.1.5 Access to data types
- 8.1.6 Data transfer unit
- 8.1.7 Status code and error code definition
- 8.2 Data transmission interface definition
- 8.2.1 Registration request data transmission interface
- 8.2.2 Registration response data transmission interface
- 8.2.3 Terminal detection request data transmission interface
- 8.2.4 Terminal Probe Response Data Transmission Interface
- 8.2.5 Version number proofreading request data transmission interface
- 8.2.6 Version number proofreading response data transmission interface
- 8.2.7 Model detection request data transmission interface
- 8.2.8 Model Detection Response Data Transmission Interface
- 8.2.9 Model setting request data transmission interface
- 8.2.10 Model setting response data transmission interface
- 8.2.11 Data query request data transmission interface
- 8.2.12 Data query response data transmission interface
- 8.2.13 Data setting request data transmission interface
- 8.2.14 Data setting response data transmission interface
- 8.2.15 Data sampling data transmission interface
- 8.2.16 Status notification data transmission interface
- 8.2.17 Dynamic sampling registration request data transmission interface
- 8.2.18 Dynamic sampling registration response data transmission interface
- 8.2.19 Dynamic sampling logout request data transmission interface
- 8.2.20 Dynamic sampling logout response data transmission interface
- 8.2.21 Dynamic data sampling data transmission interface
- 8.2.22 Built-in method call data transfer interface
- 8.2.23 Built-in method progress data transmission interface
- 8.2.24 Internal method result data transmission interface
- 8.2.25 Built-in method control request data transmission interface
- 8.2.26 Built-in method control response data transmission interface
- 8.2.27 Event registration request data transmission interface
- 8.2.28 Event registration response data transmission interface
- 8.2.29 Event logout request data transmission interface
- 8.2.30 Event logout response data transmission interface
- 8.2.31 Event data data transmission interface
- 8.3 Network Connection Error Scenario
- 8.3.1 Overview
- 8.3.2 Connection Error Scenario
- 8.3.3 Connection Error Scenario 2
- 8.3.4 Connection Error Scenario 3
- 8.3.5 Connection Error Scenario 4
- 8.3.6 Connection error scenario five
- 9 Testing and Evaluation
- 9.1 Test requirements
- 9.1.1 Test purpose
- 9.1.2 Test system composition
- 9.1.3 Connection of test objects
- 9.2 Test content
- 9.2.1 Connection test
- 9.2.2 Test cases
- 9.2.3 Model Detection and Model Setting Test
- 9.2.4 Data query and data setting test
- 9.2.5 Data sampling test
- 9.2.6 Event function test
- 9.2.7 Dynamic sampling function test
- 9.2.8 Status notification test
- 9.2.9 Functional testing of built-in methods
- 9.3 Evaluation of test results
- 9.3.1 Connection test
- 9.3.2 Model file normative check
- 9.3.3 Adapter and proxy functional testing
- 9.4 Test records
- Appendix A (informative) CNC machine tool model style file example
- Appendix B (Informative) Model Description Example of CNC Machine Tool
- Appendix C (Informative) Test Record Form
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 for Standardization Documents" drafting.
Introduction
With the rapid development of information technology, the traditional manufacturing industry has begun to transition to intelligent manufacturing. The key to intelligent manufacturing lies in the information of CNC machine tools. interact. However, CNC machine tools are multi-source heterogeneous systems with great differences, which brings difficulties to information interaction and also forms the above-mentioned problems.
The bottleneck of the interaction between the layer application system and the CNC machine tool. To this end, smart factories need a unified and standardized CNC machine tool interconnection protocol, the core of which is the interconnection model and interface specification.
At present, some CNC equipment interconnection standards or protocols have been proposed at home and abroad, but these standards and protocols cannot meet the needs of digital twins.
Data requirements, for this reason, according to the needs and development trends of domestic industrial interconnection, relevant interfaces that meet the interconnection of CNC machine tools in smart factories should be formulated specification.
It is against this background that the Smart Factory CNC Machine Tool Interconnection Interface Specification (NC-Link for short) was proposed and formulated. NC-Link is used to connect Connect the CNC machine tool with the application system, transmit the attribute data, parameters and operation information of the CNC machine tool to the application system or control the application system The information is transmitted to the CNC machine tool to realize information interaction. In addition, when the CNC machine tools of the smart factory are interconnected, they also need to collect and use other The data of the auxiliary equipment of CNC machine tools such as measurement and logistics, so the interconnection interface of CNC machine tools in the smart factory will also cover the data of these auxiliary equipment interface. Smart factory CNC machine tool interconnection interface specification
1 Scope
This document specifies the interconnection interface specifications of CNC machine tools in smart factories (hereinafter referred to as NC-Link), including general requirements, CNC machine tool models Definition, data item definition, data transmission interface definition and testing and evaluation.
This document applies to CNC machine tools and their ancillary equipment. Other digital equipment in the smart factory can be used as a reference.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 25069-2010 Information Security Technical Terms
3 Terms and Definitions
The following terms and definitions defined in GB/T 25069-2010 apply to this document.
3.1 Application system
Software and hardware for analyzing, managing and monitoring the attribute data, parameter data and operation data of CNC machine tools or controlling CNC machine tools file system.
Note: Common application systems include ERP, MES, etc.
3.2 Adapter
Software components or hardware devices, used to connect the agent and the CNC machine tool to realize the collection of attribute data, parameter data or Run the data and perform format parsing and conversion, transmit it to the agent in a unified format, or receive control information from the agent, and follow the instructions The specified CNC machine tool needs to be converted and transferred to the corresponding CNC machine tool.
Note: Since there is a one-to-one correspondence between the CNC machine tool and the adapter, the adapter is used in this document to represent the CNC machine tool.
3.3 Agent
A software component or hardware device used to connect the adapter and the application system to collect data from the adapter and distribute it to the application system, or Receive the control information from the application system and download it to the adapter.
3.4 Terminal
Application system or CNC machine with adapter connected.
NOTE: Terminals are identified by a unique terminal identifier within the system.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 185 pages — is available in the English PDF.
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