GB/T 18657.4-2002Telecontrol equipment and systems -- Part 5: Transmission protocols -- Section 4: Definition and coding of application information elements (English PDF)
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Level / Type
National · Recommended
Issue date
February 22, 2002
Implementation date
August 1, 2002
Scope
GB/T 18657.4-2002 (Telecontrol equipment and systems -- Part 5: Transmission protocols -- Section 4: Definition and coding of application information elements) is available as an English-translated PDF.
GB/T 18657.4-2002 — This standard applies to the bit-serial data transmission Telecontrol equipment and systems used for geographically widely distributed process monitoring and control.
This standard gives a definition of the rules of the information elements, presented a set of information elements, in particular, long distance system proposed some common digital and analog process variables.
Chapter 4 presents specific information elements defined in the application of grammar rules, including semantic Chen surgery approach. These methods are defined information domain functional interpretation of instructions.
Chapter 5 will be stated in Chapter 4 defines the basic data types and describes a specific type of data. Chapter 6 presents telecontrol systems commonly used in a set of information elements.
These elements and recommendations that the application is only advisory. Information elements defined in the application protocol statements should focus OK. Single information element, or a combination of sequence information elements can form a message body. The body of the message by the GB/T 18657.
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Document preview — GB/T 18657.4-2002
National Standard of the People's Republic of China
- ICS
- 33.200
- Classification
- F 21
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard applies to the bit-serial data transmission Telecontrol equipment and systems used for geographically widely distributed process monitoring and control. This standard gives a definition of the rules of the information elements, presented a set of information elements, in particular, long distance system proposed some common digital and analog process variables. Chapter 4 presents specific information elements defined in the application of grammar rules, including semantic Chen surgery approach. These methods are defined information domain functional interpretation of instructions. Chapter 5 will be stated in Chapter 4 defines the basic data types and describes a specific type of data. Chapter 6 presents telecontrol systems commonly used in a set of information elements. These elements and recommendations that the application is only advisory. Information elements defined in the application protocol statements should focus OK. Single information element, or a combination of sequence information elements can form a message body. The body of the message by the GB/T 18657. 3 described in the body of the message address and message structure specification identity.
Document data
International classification (ICS): 33.200.
Chinese classification (CCS): F21.
Estimated length of the Chinese original: 27,284 words.
Adopted international standard: IEC 60870-5-4-1993, IDT.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.
Referenced standards
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GB/T 18657.2-2002 — Telecontrol equipment and systems -- Part 5: Transmission protocols -- Section 2: Link transmission procedures
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GB/T 18657.4-2002
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