GB/T 18657.4-2002 English PDF

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GB/T 18657.4-2002: Telecontrol equipment and systems -- Part 5: Transmission protocols -- Section 4: Definition and coding of application information elements
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18657.4-2002	704	Add to Cart	4 days	Telecontrol equipment and systems -- Part 5: Transmission protocols -- Section 4: Definition and coding of application information elements	Valid

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Basic data

Standard ID: GB/T 18657.4-2002 (GB/T18657.4-2002)
Description (Translated English): Telecontrol equipment and systems. Part 5: Transmission protocols. Section 4: Definition and coding of application information elements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F21
Classification of International Standard: 33.200
Word Count Estimation: 27,264
Date of Issue: 2002-02-22
Date of Implementation: 2002-08-01
Adopted Standard: IEC 60870-5-4-1993, IDT
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary: 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.

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