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GB/T 19582.1-2008 English PDF

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GB/T 19582.1-2008: Modbus industrial automation network specification -- Part 1: Modbus application protocol
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Basic data

Standard ID GB/T 19582.1-2008 (GB/T19582.1-2008)
Description (Translated English) Modbus industrial automation network specification -- Part 1: Modbus application protocol
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard N10
Classification of International Standard 25.040
Word Count Estimation 54,522
Date of Issue 2008-02-27
Date of Implementation 2008-09-01
Older Standard (superseded by this standard) GB/Z 19582.1-2004
Quoted Standard GB/T 15969; RFC 791
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 Modbus transaction processing function code used within the framework. Modbus application layer packet transmission protocol used by different types of buses or networks between devices connected client/server communication. Currently, the following ways to achieve Modbus communication: Ethernet TCP/IP, see GB/T 19582. 3. Various media (wired: EIA/TIA-232-E, EIA-422, EIA/TIA-485-A, optical, wireless, etc.) on the asynchronous serial transmission. Modbus +, a high-speed token-passing networks.

GB/T 19582.1-2008: Modbus industrial automation network specification -- Part 1: Modbus application protocol


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Modbus industrial automation network specification Part 1. Modbus application protocol ICS 25.040 N10 National Standards of People's Republic of China Replacing GB /Z19582.1-2004 Posted 2008-02-27 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 2 3 Acronyms 4 Summary 2 Background 5 general description of 3 5.1 Protocol Description 3 5.2 4 data coding 5.3 Modbus Data Model 5 5.4 Modbus addressing model 6 Definitions 5.5 Modbus transaction 7 6 Function Code Category 8 6.1 Public Function Code Definition 8 7 Function code Description 9 7.1 01 (0x01) Read Coil 9 7.2 02 (0x02) read discrete input 11 7.3 03 (0x03) Read Holding Registers 12 7.4 04 (0x04) Read Input Registers 14 7.5 05 (0x05) Write single coil 15 7.6 06 (0x06) Write Single Register 17 7.7 07 (0x07) Read Exception Status (only for serial link) 18 7.8 08 (0x08) diagnostic (only for serial link) 19 7.9 11 (0x0B) to obtain a communication event counter (for serial link only) 23 7.10 12 (0x0C) to obtain a communication event recording (for serial link only) 24 7.11 15 (0x0F) Write Multiple coil 27 7.12 16 (0x10) Write Multiple Registers 29 7.13 17 (0x11) Report Slave ID (only for serial link) 30 7.14 20 (0x14) read documentation 31 7.15 21 (0x15) written documentation 33 7.16 22 (0x16) Mask Write Register 35 7.17 23 (0x17) Read/Write multiple registers 37 7.18 24 (0x18) read FIFO queue 39 7.19 43 (0x2B) package interface transfer 40 7.20 43/13 (0x2B/0x0D) CANopen generic reference request and response PDU 42 7.21 43/14 (0x2B/0x0E) reading device identification 42 8 Modbus exception response 46 Appendix A (informative) function code Modbus reserved subcode and MEI Type 48 Appendix B (Informative Appendix) CANopen General Reference command 48 References 49

Foreword

GB/T 19582-2008 "industrial automation network specification Modbus protocol" is divided into three parts. --- The first part 1. Modbus application protocol; Part --- Article 2. Modbus protocol on serial link implementation guide; Part --- Section 3. Modbus protocol implementation guide over TCP/IP on. Part 1 describes the Modbus transaction; Part 2 provides information to help developers implement Modbus serial link should Reference information layer; Part 3 provides information to help developers implement Modbus application layer in TCP/IP on the reference information. Modbus is a request/response protocol and provides the function code specified services. Modbus is a Modbus request Function code/should A PDU element. This section describes the function codes in Modbus transaction processing framework uses. Modbus application layer protocol for packet transmission between connected through different types of bus or network device client/server Communication. Currently, the realization of Modbus communication in the following ways. TCP/IP --- Ethernet, see GB/T 19582.3. --- Various media.; asynchronous serial (wired EIA/T IA-232-E, EIA-422, EIA/T IA-485-A fiber, wireless, etc.) on transmission. --- Modbus +, a high-speed token-passing network.

2 Normative references

The following documents contain provisions which, through reference GB/T 19582 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 15969 Programmable Logic Controller RFC791 InternetProtocol, Sep81DARPA

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