GB/T 38854-2020Smart factory—Transfer protocol of production process control data (English PDF)
智能工厂 生产过程控制数据传输协议
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 21, 2020
Implementation date
February 1, 2021
Scope
GB/T 38854-2020 is the English-translated version of 智能工厂 生产过程控制数据传输协议.
GB/T 38854-2020 is the Chinese standard "Smart factory—Transfer protocol of production process control data".
Its scope clause reads: This standard specifies the internal centralized monitoring system and production line control system of smart factories, digital processing equipment, mobile robots, code scanners, etc, and the format and interface mode of data exchange between on-site terminal equipment or systems such as fire fighting and air conditioning.
This standard applies to the construction of smart factories and the intelligent transformation of traditional factories. Intelligent factory centralized monitoring system and production line control system, The data communication of the workshop monitoring system can be implemented by reference.
Its clauses include terms, definitions and abbreviations; agreement structure; message format of real-time data and commands.
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Document preview — GB/T 38854-2020
National Standard of the People's Republic of China
- ICS
- 25.040
- Classification
- N 10
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviations
- 4 Protocol structure
- 5 Message format of real-time data and commands
- 5.1 Data message format classification
- 5.2 Data message types and definitions
- Appendix A (normative appendix) Data transmission process between master and slave
- Appendix B (informative appendix) CRC16 C language program example
1 Scope
This standard specifies the internal centralized monitoring system and production line control system of smart factories, digital processing equipment, mobile robots, code scanners, etc.
And the format and interface mode of data exchange between on-site terminal equipment or systems such as fire fighting and air conditioning.
This standard applies to the construction of smart factories and the intelligent transformation of traditional factories. Intelligent factory centralized monitoring system and production line control system,
The data communication of the workshop monitoring system can be implemented by reference.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 26865.2 Power System Real-time Dynamic Monitoring System Part 2.Data Transmission Protocol
GB/T 32197 Robot Controller Open Communication Interface Specification
3 Terms, definitions and abbreviations
3.1 Terms and definitions
The following terms and definitions defined in GB/T 26865.2 and GB/T 32197 apply to this document.
3.1.1 Smartfactory
Use intelligent equipment and control systems with analysis, reasoning, judgment, conception, and decision-making capabilities for product production and manufacturing department.
3.1.2 Integratedmonitoringcontrolsysteminsmartfactory
For smart factory real-time monitoring business, providing technical support for smart factory production process, operating environment, equipment status, control operation, etc.
Automation system.
3.2 Abbreviations
The following abbreviations apply to this document.
4 Agreement structure
This protocol is based on the OSI reference model and belongs to the application layer protocol. The underlying communication uses the TCP/IP network protocol. Protocol in OSI reference
The position in the model is shown in Figure 1.
Figure 1 The position of this agreement in the OSI reference model
5 Message format of real-time data and commands
5.1 Data message format classification
The data message includes four types. data frame, command frame, information frame and response frame.
Data frame is used for terminal equipment or subsystem (slave station) to transmit real-time data to intelligent factory centralized monitoring system (master station); command frame is used for
The transmission centralized monitoring master station issues control commands and control parameters to the terminal equipment or subsystem; the information frame describes the slave station quantity in ASCII code
Test configuration information; the response frame responds to the received message, replying to the data reception status or command execution status.
All transmitted frames have no delimiters. See Appendix A for a sample data transmission process.
Figure 2 describes the frame structure of the transmission, including the transmission sequence and the description of the fields. The synchronization word is transmitted first, and the check word is transmitted last. Multiple words
When transmitting the words of the section, the most significant byte is transmitted first, and all frames use the same order and format (ASCII character transmission order and representation order).
The order is the same).
The definition of each byte of the transmission frame is shown in Table 1.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
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