GB/T 19582.3-2008: Modbus industrial automation network specification -- Part 3: Modbus protocol implementation guide over TCP/IP

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Scope

This Part describes the Modbus message transmission service over TCP/IP and provides
reference information to assist software developers in implementing this service. This Part does
not include the encoding of Modbus function codes; for this information, please refer to GB/T
19582.1-2008.
This Part provides a comprehensive and accurate description of the implementation of the
Modbus message transmission service. Its purpose is to facilitate interoperability between
devices using the Modbus message transmission service.
This Part consists of three main parts.
---An overview of the Modbus protocol over TCP/IP;
---A functional description of the Modbus client, server and gateway implementations;
---Suggested implementation guidelines for an object model of a Modbus implementation
example.

Basic Data

Standard ID	GB/T 19582.3-2008 (GB/T19582.3-2008)
Description (Translated English)	Modbus industrial automation network specification -- Part 3: Modbus protocol implementation guide over TCP/IP
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N10
Classification of International Standard	25.040
Word Count Estimation	37,331
Date of Issue	2008-02-27
Date of Implementation	2008-09-01
Older Standard (superseded by this standard)	GB/Z 19582.3-2004
Regulation (derived from)	Announcement of Newly Approved National Standards No. 3 of 2008 (No. 116 overall)
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 TCP/IP packets on the Modbus transmission services, to provide reference information to help software developers to implement this service. This section does not include Modbus function code encoding content on these topics see GB/T 19582. 1-2008. This section fully and accurately describe the Modbus packet transmission service implementation. Its purpose is to promote the use of Modbus packet transmission services interoperability between devices. This part mainly consists of three parts: TCP/IP on the Modbus protocol overview, Modbus client, server, and gateway functional description, implementation examples for a Modbus object model to achieve the recommended guidelines.