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{| class="infobox" style="width: 280px;"
| style="background-color: #CCF; text-align: center; font-size: larger; padding: 1px 3px;" colspan="2" | '''MTConnect'''
|-
{{!}} colspan="2" style="text-align: center; background-color: #fff;"{{!}}[[Image:MTConnect Logo.jpg|250px]]
|-
{{!}} '''Year created:'''
{{!}}2008
|-
{{!}} '''Created by:'''
{{!}}[[Association for Manufacturing Technology|AMT]], [[University of California, Berkeley|UCB]], [[Georgia Institute of Technology|GT]]
|-
{{!}} '''Governing Body:'''
{{!}} MTConnect Institute
|-
{{!}} '''Website:'''
{{!}} {{URL|http://mtconnect.org/}}
|}

'''MTConnect''' is a manufacturing [[technical standard]] to retrieve process information from [[Numerical control|numerically controlled]] [[machine tool]]s. As explained by a member of the team that developed it,<ref name="Copeland-2021-07-30">{{Citation |last=Copeland |first=Tom |date=July 30, 2021 |title=Machine Tool Data Analysis Identifies Effective Setup Tactics |work=Modern Machine Shop |url=https://www.mmsonline.com/articles/machine-tool-data-analysis-identifies-effective-setup-tactic |access-date=July 30, 2021 |postscript=.}}</ref> "This standard specifies the open-source, royalty-free communications protocol based on [[XML]] and [[Hypertext Transfer Protocol|HTTP]] Internet technology for real-time data sharing between shopfloor equipment such as [[machine tool]]s and computer systems. MTConnect provides a common vocabulary with standardized definitions for the meaning of data that machine tools generate, making the data interpretable by software applications."<ref name="Copeland-2021-07-30"/> A simple, real-world example of how this tool is used to improve shop management is given by the same author.<ref name="Copeland-2021-07-30"/>

==History==
The initiative began as a result of lectures given by David Edstrom of [[Sun Microsystems]] and [[David Patterson (scientist)|David Patterson]], professor of [[Computer Science]] at the [[University of California, Berkeley]] (UCB) at the 2006 annual meeting of the [[Association for Manufacturing Technology]] (AMT).<ref>{{cite web|url=http://us.generation-nt.com/sun-microsystems-champions-open-standards-usher-new-era-press-1001701.html|title=Sun Microsystems Champions Open Standards to Usher in a New Era in Manufacturing|accessdate=2010-05-11|url-status=dead|archiveurl=https://web.archive.org/web/20110711084401/http://us.generation-nt.com/sun-microsystems-champions-open-standards-usher-new-era-press-1001701.html|archivedate=2011-07-11}}</ref> The two lectures promoted an open communication standard to enable [[Internet]] connectivity to manufacturing equipment.<ref>{{Cite web |title= AMT's 2006 Annual Meeting: Manufacturing in the Internet Age |date= October 25, 2006 |publisher= AMT |work= Convention program |url= http://www.amtonline.org/calendar/related_materials.cfm?file_name=2006Annual+Mtg+Brochure.pdf |access-date= March 2, 2017 }}</ref>
Initial development was carried out by a joint effort between the UCB Electrical Engineering and Computer Sciences (EECS) department, the UCB Mechanical Engineering (ME) department (both in the [[University of California, Berkeley College of Engineering|College of Engineering]]) and the [[Georgia Institute of Technology]],<ref>{{cite web|url=http://www.productionmachining.com/articles/computer-standard-to-streamline-shops.aspx|title=Article from Production Machining: Computer Standard To Streamline Shops|accessdate=2009-12-18}}</ref> using input from industry representatives. The resulting standard is available under royalty-free licensing terms.<ref>{{cite web|url= http://www.americanmachinist.com/304/Issue/Article/False/72325/Issue|title= Article from American Machinist: MTConnect in your Future|accessdate=2009-12-18}}</ref>

==Description==
MTConnect is a protocol designed for the exchange of data between shop floor equipment and software applications used for monitoring and data analysis. MTConnect is referred to as a [[file system permissions|read-only]] standard, meaning that it only defines the extraction (reading) of data from control devices, not the writing of data to a control device. Freely available, open standards are used for all aspects of MTConnect. Data from shop floor devices is presented in [[XML]] format, and is retrieved from information providers, called Agents, using [[Hypertext Transfer Protocol]] (HTTP) as the underlying transport [[Communications protocol|protocol]]. MTConnect provides a [[REST]]ful interface, which means the interface is stateless. No [[Session (computer science)|session]] must be established to retrieve data from an MTConnect Agent, and no logon or logoff sequence is required (unless overlying security protocols are added which do). [[Lightweight Directory Access Protocol]] (LDAP) is recommended for discovery services.

Version 1.0 was released in December 2008.<ref>{{cite web|url=http://mtconnect.org/download/MTConnect%20NEWS%2001_20_09.pdf|title=MTConnect Newsletter January 20, 2009|accessdate=2009-12-17|url-status=dead|archiveurl=https://web.archive.org/web/20110727101459/http://mtconnect.org/download/MTConnect%20NEWS%2001_20_09.pdf|archivedate=July 27, 2011}}</ref>

The first public demonstration of MTConnect occurred at the [[International Manufacturing Technology Show]] (IMTS) held in [[Chicago]], Illinois September 2008.<ref>{{cite web|url=http://news.thomasnet.com/IMT/archives/2008/09/international_manufacturing_technology_show_imts_2008_highlights_robots_mtconnect.html|title=ThomasNet: IMTS 2008: The "Rosetta Stone" of Interoperability and More|accessdate=2009-12-18}}</ref> There, 25 industrial equipment manufacturers networked their machinery [[control systems]], providing process information that could be retrieved from any web-enabled [[Client (computing)|client]] connected to the network.<ref>{{cite web|url=http://mtconnect.org/download/MTConnect%20NEWS%2010_07_08.pdf|title=MTConnect Newsletter October 7, 2008|accessdate=2009-12-17|url-status=dead|archiveurl=https://web.archive.org/web/20110727101505/http://mtconnect.org/download/MTConnect%20NEWS%2010_07_08.pdf|archivedate=July 27, 2011}}</ref>

Subsequent demonstrations occurred at [[EMO (trade show)|EMO]] (the European machine tool show) in [[Milan]], Italy in October 2009,<ref>{{cite web|url=http://www.imts.com/visitor/newsletter/insider/20091015/emo2009.html|title=A View From EMO Milan|accessdate=2009-12-18|url-status=dead|archiveurl=https://web.archive.org/web/20110713023743/http://www.imts.com/visitor/newsletter/insider/20091015/emo2009.html|archivedate=2011-07-13}}</ref> and the 2010 IMTS in Chicago.<ref>{{cite web|url=http://www.imts.com/visitor/newsletter/insider/2010Sep01/tech_mtconnect.html|title=MTConnect at the Show|accessdate=2010-09-02|url-status=dead|archiveurl=https://web.archive.org/web/20110625002227/http://www.imts.com/visitor/newsletter/insider/2010Sep01/tech_mtconnect.html|archivedate=2011-06-25}}</ref>

==Standard==

The MTConnect standard has three sections. The first section provides information on the protocol and structure of the XML documents via [[XML schema]]s. The second section specifies the machine tool components and the description of the available data. The third and last section specifies the organization of the data streams that can be provided from a manufacturing device. The MTConnect Institute is considering adding a fourth section to support mobile assets that include tools and work-holdings.<ref>{{cite web|url=http://mtconnect.org/index.php?option=com_content&task=category&sectionid=4&id=56&Itemid=154|title=MTConnect Standard|url-status=dead|archiveurl=https://web.archive.org/web/20110727101519/http://mtconnect.org/index.php?option=com_content&task=category&sectionid=4&id=56&Itemid=154|archivedate=2011-07-27}}</ref>

MTConnect took an incremental approach to defining the requirements for manufacturing device communications. It did not exhaustively define every possible piece of data an application can collect from a manufacturing device, but it works forward from business and research objectives to define the required elements to meet those needs. The standard catalogued important components and data items for metal cutting devices. MTConnect provides an extensible XML schema to allow implementors to add custom data to meet their specific needs, while providing as much commonality as possible.

On September 16, 2010, The MTConnect Institute and the [[OPC Foundation]] announced cooperation between the respective organizations.<ref>{{cite web|url=http://www.opcfoundation.org/Default.aspx/02_news/02_news_display.asp?id=845&MID=News|title=OPC Foundation and MTConnect Institute Announce a Memorandum of Understanding|date=2010-10-21|publisher=OPC Foundation|accessdate=2010-10-26|url-status=dead|archiveurl=https://web.archive.org/web/20110616214614/http://www.opcfoundation.org/Default.aspx/02_news/02_news_display.asp?id=845&MID=News|archivedate=2011-06-16}}</ref>

==Applications==
[[File:Locale_RS6_CPS for Manufacturing.png|400px|right]]
The maintenance cost and losses in productivity with unplanned downtime for machine tool components such as spindle bearings and ball screws could be reduced if one could proactively take action prior to failure. In addition, cutting tools and inserts are expensive to replace when they are still in good condition, but replacing the tools too late can be costly due to scrap and re-work. The proposed health monitoring application will use MTConnect to extract controller data and pattern recognition algorithms to assess the health condition of the spindle and machine tool axes. The health assessment approach is based on running a routine program each shift in which the most recent data patterns are compared to the baseline data patterns. An online tool condition monitoring module is also proposed and uses controller data such as the spindle motor current, with other add on sensors (vibration, acoustic emission) to accurately estimate and predict tool wear. With the added transparency of the machine tool health information, one can take proactive actions before significant downtime or productivity losses occur.

==References==
{{Reflist}}

==External links==
*[http://www.amtonline.org/TechnologyandStandards/TechnologyInitiatives/mtconnct-whatisit.htm MTConnect - What is it? (introduction with information videos)]
*[http://www.mtconnect.org/ MTConnect Institute Home Page]
*[https://web.archive.org/web/20091216233509/http://www.mmsonline.com/articles/mtconnect-is-for-real.aspx Modern Machine Shop magazine article 'MTConnect Is For Real']
*[http://www.controldesign.com/articles/2009/MTConnectIN08Q4.html Control Design magazine article: MTConnect Standardizes Data, Lets Machines and Users Talk Same Language] {{Webarchive|url=https://web.archive.org/web/20160501102723/http://www.controldesign.com/articles/2009/MTConnectIN08Q4.html |date=2016-05-01 }}

{{List of automation protocols}}

[[Category:Industrial computing]]
[[Category:Industry-specific XML-based standards]]
[[Category:Computer-aided manufacturing]]

MTConnect - Revision history

RS-485: Imported from Wikipedia (overwrite)