{"product_id":"gbt19582-1-2008","title":"GB\/T 19582.1-2008 English PDF (GB\/T19582.1-2008)","description":"\u003ch1\u003eGB\/T 19582.1-2008: Modbus industrial automation network specification -- Part 1: Modbus application protocol\u003c\/h1\u003e\u003cb style=\"font-size:16px;\"\u003eDelivery:\u003c\/b\u003e 9 seconds. Download (and Email) true-PDF + Invoice.\u003cbr\u003e\u003cb style=\"font-size:16px;\"\u003eGet Quotation:\u003c\/b\u003e Click \u003ca style=\"color: blue;\" href=\"https:\/\/www.chinesestandard.net\/Cart\/Cart.aspx?GB\/T%2019582.1-2008_English\" rel=\"nofollow\"\u003eGB\/T 19582.1-2008\u003c\/a\u003e (Self-service in 1-minute)\u003cbr\u003e\u003cb style=\"font-size:16px;\"\u003eNewer \/ historical versions: \u003c\/b\u003e \u003ca style=\"color: blue;\" href=\"https:\/\/www.chinesestandard.net\/PDF.aspx\/GBT19582.1-2008\"\u003eGB\/T 19582.1-2008\u003c\/a\u003e\u003ch2\u003ePreview True-PDF\u003c\/h2\u003e\u003ciframe src=\"https:\/\/www.chinesestandard.net\/Preview_PDF.aspx\/GBT19582.1-2008\" width=\"445\" height=\"600\" title=\"GB\/T 19582.1-2008 True-PDF\"\u003e\u003c\/iframe\u003e \u003cbr\u003e\u003ch2\u003eScope\u003c\/h2\u003eModbus is an application layer message transmission protocol at Layer 7 of the OSI \u003cbr\u003emodel. It provides client\/server communication between devices connected to different \u003cbr\u003etypes of buses or networks, as shown in Figure 1. \u003cbr\u003eSince 1979, Modbus has been the de facto standard for industrial serial links, enabling \u003cbr\u003ecommunication between thousands of automated devices. Currently, support for the \u003cbr\u003esimple and sophisticated Modbus architecture continues to grow. Internet users can \u003cbr\u003eaccess Modbus using reserved system port 502 on the TCP\/IP stack. \u003cbr\u003eModbus is a request\/response protocol, that provides services defined by function codes. \u003cbr\u003eModbus function codes are elements of a Modbus request\/response PDU. This Part \u003cbr\u003edescribes the function codes used within the Modbus transaction processing framework. \u003cbr\u003eThe Modbus application layer message transport protocol is used for client\/server \u003cbr\u003ecommunication between devices connected via different types of buses or networks. \u003cbr\u003eCurrently, Modbus communication is implemented in the following ways. \u003cbr\u003e- TCP\/IP over Ethernet, see GB\/T 19582.3. \u003cbr\u003e- Asynchronous serial transmission over various media (wired. EIA\/TIA-232-E, \u003cbr\u003eEIA-422, EIA\/TIA-485-A; fiber optic, wireless, etc.). \u003cbr\u003e- Modbus+, a high-speed token passing network. \u003cbr\u003eFigure 1 -- Modbus communication stack \u003cbr\u003e\u003cbr\u003e\u003ch2\u003eBasic Data\u003c\/h2\u003e\u003ctable id=\"TableTabAbout0\" rules=\"all\" border=\"1\" style=\"font-family:Arial;font-size:Small;\"\u003e  \u003ctr id=\"TableTabRow10\"\u003e     \u003ctd id=\"TableTabCell110\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eStandard ID\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell120\" align=\"center\"\u003e GB\/T 19582.1-2008 (GB\/T19582.1-2008)\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow20\"\u003e     \u003ctd id=\"TableTabCell210\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDescription (Translated English)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell220\" align=\"center\"\u003e Modbus industrial automation network specification -- Part 1: Modbus application protocol\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow30\"\u003e     \u003ctd id=\"TableTabCell310\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eSector \/ Industry\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell320\" align=\"center\"\u003e National Standard (Recommended)\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow40\"\u003e     \u003ctd id=\"TableTabCell410\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eClassification of Chinese Standard\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell420\" align=\"center\"\u003e N10\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow50\"\u003e     \u003ctd id=\"TableTabCell510\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eClassification of International Standard\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell520\" align=\"center\"\u003e 25.040\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow60\"\u003e     \u003ctd id=\"TableTabCell610\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eWord Count Estimation\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell620\" align=\"center\"\u003e 54,533\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow70\"\u003e     \u003ctd id=\"TableTabCell710\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDate of Issue\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell720\" align=\"center\"\u003e 2008-02-27\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow80\"\u003e     \u003ctd id=\"TableTabCell810\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDate of Implementation\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell820\" align=\"center\"\u003e 2008-09-01\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow90\"\u003e     \u003ctd id=\"TableTabCell910\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eOlder Standard (superseded by this standard)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell920\" align=\"center\"\u003e GB\/Z 19582.1-2004\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow100\"\u003e     \u003ctd id=\"TableTabCell1010\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eQuoted Standard\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell1020\" align=\"center\"\u003e GB\/T 15969; RFC 791\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow110\"\u003e     \u003ctd id=\"TableTabCell1110\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eRegulation (derived from)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell1120\" align=\"center\"\u003e Announcement of Newly Approved National Standards No. 3 of 2008 (No. 116 overall)\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow120\"\u003e     \u003ctd id=\"TableTabCell1210\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eIssuing agency(ies)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell1220\" align=\"center\"\u003e General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow130\"\u003e     \u003ctd id=\"TableTabCell1310\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eSummary\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell1320\" align=\"center\"\u003e 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. \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e","brand":"www.ChineseStandard.us -- Field Test Asia Pte. Ltd.","offers":[{"title":"Default Title","offer_id":53462244589882,"sku":null,"price":990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5737\/1706\/files\/GBT19582.1-2008EN.1.jpg?v=1778936860","url":"https:\/\/www.chinesestandard.us\/products\/gbt19582-1-2008","provider":"www.ChineseStandard.us (www.ChineseStandard.net)","version":"1.0","type":"link"}