基于PLC恒壓供水變頻控制系統(tǒng)設(shè)計含4張CAD圖,基于,PLC,供水,變頻,控制系統(tǒng),設(shè)計,CAD 外文資料翻譯 In the high-end market, PLC and industrial PC something together, because the industrial PC in the data integration and communication capabilities to the user a lot of temptation. PC also introduced Ethernet TCP / IP network and interconnection with the concept of the Internet. But now, PLC manufacturers can claim, "If you want this, we can do." European leader in the PLC, Siemens A & D and Schneider Electric, provides a powerful high-end controller family, regardless of PLC or industrial PC, and at the same time promoting the field of PLC and industrial PC development. The recent announcement by Siemens S7-400 PLC series of significant performance increase, the CPU performance of the previous 3 times the communications capacity is 2 times the previous. Siemens is still the most high-end of the S7-400 series, an increase of another innovation: communications processor with integrated 4-port Ethernet switch. The need for external switch, the Ethernet can be used for small-scale model of the economy. However, the communications processor real difference is that from now on it is a higher stage of development to middle-class, at a higher stage, Siemens will use high-end PLC and integrated Profinet V3 switch external devices, can provide real-time control. Schneider Electric has developed a substantial high-end CPU's performance, the introduction of the new Unity software programming, XML data format. In the embedded web server and multi-port communication, the new functions of the CPU more and more like PC. Integrated design of the platform Mitsubishi Electric PLC will be the further development of 2-3 years, and now the horizon: multi-processor and system platform. "From the users point of view means that function blocks can be placed on a plate", PLC and network of experts believe that Hugh Tasker, "These can include standard PLC technology, but a mix of motion control and process control, or full-featured PC performance, the use of SCADA or local program SoftHMI technology. " The development of what is it? In his view, the users, the biggest benefit is the simplified control system. "Do not have to integrate a lot of PLC, they are connected, and then operation and maintenance, and now many of the system will reduce the number of PLC, and even the introduction of a. This can greatly save time for installation and maintenance, the durability of the whole system is also more . He also speculated the future, "in a very long period of time, Bluetooth technology and wireless Ethernet technology will be more extensive. It will first start in a small area, but in terms of reliability, durability and easy acceptance will be improved, manufacturers will be likely to seek the application of wireless technology may one day even the most basic cable they have not been saved. B & R Automation is a supplier of control products, the provision of industrial PC, but compared to other PLC manufacturers, which in the field of PLC is also quite a long time. But they never dwell on the PC and the PLC Which Which weak strong together in the common development. B & R and now see the development of some opportunity, perhaps both to the continuous integration of technology. "In the past few years, the classic development of programmable logic controller has always been to the embedded PC technology development," B & R Business Manager Anton Meindl think, "PC technology has its advantages - the enormous computing power, and the Internet The combination of technology, fast Ethernet and USB interface, can combine the traditional advantages of the PLC system, such as practical, durable and strong, and modularity. " Omron's PLC + Inverter Omron introduced its first AC inverter 3G3MV, can be used for motion control product lines. Applicable to small-scale motor control (0.1 to 7.5 kW). It allows users to choose non-sensor vector control can provide high torque at low speed in the output frequency of 1 Hz was also able to guarantee 150 percent of torque. Also has the I / O and communication functions. However, in November last year, it increased by another function, it can be some unusual, an increase of Omron PLC Plug & Play modules used, and not just an annex, is a complete PLC, equivalent to the standard Omron CPM2C -S PLC. The use of dual-port RAM, PLC and inverter direct the I / O, data and associated parameters. PLC has its own I / O, can provide data directly to the inverter: input encoding, interrupt output, as well as digital, and PWM output pulse. ? Omron believes that this combination of products for the network or provide an ideal control program, to meet the location and sequence context in the precise control requirements, but also for manufacturing of multi-step production lines and intelligent packaging conveyor lines. Omron PLC + The combination of inverter, if the order for the pump controller, in the composition of the three pump hydraulic control system. PLC + converter combination of the first pump of the closed-loop continuous control, the other two pipes connected in parallel to the pump on / off control. Man-machine interface (MMI) can monitor SMS wireless signal can be sent to maintenance personnel. PAC in the United States In the United States, market strategy and sometimes even more than the technology itself attention in 2003, the industry there is a new popular vocabulary: Programmable Automation Controllers (Programmable Automation Controller, PAC). Terms of the new ARC Advisory Group from the market research company Craig Resnick, he thought, "PLC is very active and well-developed, with a strong vitality. However, PLC an effective tool for this industry is changing many aspects, and continuously increase its charm. automation suppliers are committed to the development of PLC in order to meet market and special user needs. functional enhancements to a new series of the surface of the system. PAC based on open industry standards, features a multi-field, General open platforms and high performance. ARC coin the term, in order to help user-defined applications to help manufacturers when talking about their products more clearly. Whether manufacturers will be the product name changed from the PLC to PAC, remains to be seen. However, GE Fanuc has not the slightest hesitation, they immediately accepted the concept of PAC, but also show in Hanover publicly announced that its new flagship product known as the PACSystems. GE Fanuc name used to express a combination of its traditional PLC products and the advantages of PC hardware with a common programming environment, Cimplicity Machine Edition software. There is a separate software-controlled engine, a development tool, multi-goal programming hardware. Hardware includes not only the two new PACSystems processor, including GE Fanuc Automation to other products, such as Tablet PC, Embedded PC, MHI and its new motion control system of the S2K. "PACSystems control on behalf of industry innovation, which enables centralized control, rather than have nothing to do all the parts together," GE Fanuc Automation (Europe) John Pritchard. Believe that the "one engine, with a development tool, the user can make use of powerful engineering environment for multiple applications. " PAC you have I have November 2003 Rockwell announced that its technology for the PAC leader, and its products ControlLogix and CompactLogix PLC fact that PAC. "We have seen the user data control system of unlimited enthusiasm, the user can collect security, finance, quality assurance procedures, and other information," that Ken Deken, Rockwell Automation, "to meet the requirements of users, users need to control the between business systems and the direct contact information at all times. " He believes that, with the constant development, PAC will be a lot of ways to deal with data and with scalability in multi-project control, integrated business systems analysis and life cycle cost management can march forward 在高端市場，PLC與工業(yè)PC有得一拼，因為工業(yè)PC在數(shù)據(jù)集成和通信能力方面對用戶的誘惑力很大。 　　PC還引入了Ethernet?TCP/IP網(wǎng)絡(luò)和與因特網(wǎng)互連的概念。但是現(xiàn)在，PLC制造商也能宣稱，"如果你想要這個，我們也能做到。" 　　歐洲的PLC領(lǐng)導(dǎo)廠商，西門子A&D和施耐德電氣，都能提供功能強大的高端控制器系列，不管是PLC還是工業(yè)PC，并同時促進(jìn)了PLC和工業(yè)PC領(lǐng)域的發(fā)展。 　　西門子近期宣布S7-400?PLC系列的重大性能提升，現(xiàn)在的CPU性能是以前的3倍，通信能力是以前的2倍。 　　西門子還在其最高端的S7-400系列中增加了另一個創(chuàng)新：通信處理器，具有集成的、4端口的Ethernet?switch。不需要外部switch，是能用于小型以太網(wǎng)通信的經(jīng)濟(jì)型模式。但是，這種通信處理器真正的不同之處在于它是一個從現(xiàn)在向更高階段發(fā)展的中間級，在更高階段中，西門子將采用高端PLC和集成Profinet?V3?switch的外部設(shè)備，能提供實時控制。 　　施耐德電氣已經(jīng)大幅度的發(fā)展了高端CPU的性能，采用新的Unity編程軟件，XML數(shù)據(jù)形式。在嵌入了web?server和多通信口后，新的CPU在功能上越來越像PC。 　　集成的平臺設(shè)計 　　三菱電氣PLC的進(jìn)一步發(fā)展將在2至3年內(nèi)，而現(xiàn)在已經(jīng)初露端倪：多處理器和系統(tǒng)平臺。"從用戶角度出發(fā)就意味著，能將功能塊放在一塊底板上"，PLC和網(wǎng)絡(luò)專家Hugh?Tasker認(rèn)為，"這些能包括標(biāo)準(zhǔn)PLC技術(shù)，但混合了運動控制和過程控制，或是全功能PC的性能，采用局部SCADA或SoftHMI方案技術(shù)。" 　　那發(fā)展方向是什么呢？他認(rèn)為，對于用戶，最大的好處在于控制系統(tǒng)結(jié)構(gòu)的簡化。"不用再集成很多PLC，將他們連接，然后再運行和維護(hù)，現(xiàn)在的許多系統(tǒng)將減少PLC的個數(shù)，甚至就采用一個。這可以大大節(jié)省安裝和維護(hù)時間，整個系統(tǒng)的耐用性也更強。 　　他也推測了未來，"在很長的一段時間，藍(lán)牙技術(shù)和無線以太網(wǎng)技術(shù)的應(yīng)用將更為廣泛。它將先在小范圍內(nèi)起步，但在可靠性、耐用性和易接受性將獲得提高，制造商還將有可能尋求無線技術(shù)的應(yīng)用，也許某天他們連最基本的線纜都省去不用了。 　　貝加萊自動化是控制產(chǎn)品供應(yīng)商，提供工業(yè)PC，但相對于其他PLC制造者，它在PLC領(lǐng)域的時間也頗長。但他們卻從來沒有糾纏于PC與PLC孰強孰弱的問題，兩者在共同發(fā)展。而且現(xiàn)在貝加萊看到了發(fā)展方向上的一些契機(jī)，也許兩者的技術(shù)能不斷融合。 　　"在過去的幾年中，經(jīng)典可編程邏輯控制器的發(fā)展始終向嵌入式PC技術(shù)發(fā)展，"?貝加萊業(yè)務(wù)經(jīng)理Anton?Meindl認(rèn)為，"PC技術(shù)有其優(yōu)點--巨大的計算能力、與因特網(wǎng)技術(shù)的結(jié)合、快速以太網(wǎng)和USB接口，能結(jié)合傳統(tǒng)的PLC系統(tǒng)的優(yōu)點，如實用性強、耐用性強，以及模塊性。" 　　歐姆龍的PLC+變頻器 　　歐姆龍推出的其第一款A(yù)C變頻器3G3MV，可用于運動控制生產(chǎn)線。適用于小型的電動機(jī)控制（0.1到7.5?kW）。它允許用戶選擇無傳感矢量控制，能在低速提供高扭矩，在輸出頻率為1?Hz時也能保證150%的扭矩。還具有I/O和通信功能。 　　但是，在去年11月份，它增加了另一項功能，它可有些不尋常，歐姆龍增加了即插用的PLC模塊，不只是一個附件，是一個完整的PLC，相當(dāng)于歐姆龍的標(biāo)準(zhǔn)CPM2C-S?PLC。使用雙口RAM、PLC直接與變頻器的I/O、數(shù)據(jù)和參數(shù)相連。PLC具有自己的I/O，能直接向變頻器提供數(shù)據(jù)：編碼輸入、中斷輸出，以及數(shù)字式、脈沖式和PWM輸出。 ?歐姆龍認(rèn)為，這種結(jié)合為網(wǎng)絡(luò)或產(chǎn)品提供了理想的控制方案，能滿足在位置和順序方面的精確控制要求，也適用于制造業(yè)的多步驟包裝生產(chǎn)線和智能輸送線等。 　　歐姆龍的PLC+變頻器的組合如果用于泵的順序控制器，在3個泵組成的系統(tǒng)中控制水壓。PLC+變頻器的組合對第一個泵進(jìn)行連續(xù)的閉環(huán)控制，另外兩個連在平行水管上的泵進(jìn)行開/關(guān)控制。人機(jī)界面（MMI）可以進(jìn)行監(jiān)控，無線傳輸可將SMS信號傳送至維護(hù)人員。 　　PAC在美國 　　在美國，市場戰(zhàn)略有時甚至比技術(shù)本身更讓人矚目，2003年行業(yè)內(nèi)有一個廣為流行新詞匯：可編程自動化控制器（Programmable?Automation?Controller，PAC）。 　　這個嶄新的詞匯源自于ARC咨詢集團(tuán)市場調(diào)查公司的Craig?Resnick，他認(rèn)為，"PLC相當(dāng)活躍，而且發(fā)展良好，具很強的生命力。然而，PLC這個工業(yè)的有效工具正在許多方面不斷改變，不斷增加其魅力。自動化供應(yīng)商正不斷致力于PLC的開發(fā)，以迎合市場和特殊用戶的需求。功能的增強促使了新系列的系統(tǒng)浮出水面。PAC基于開放的工業(yè)標(biāo)準(zhǔn)、具多領(lǐng)域功能、通用的開放平臺以及高性能。ARC生造了這個詞，以幫助用戶定義應(yīng)用需要，幫助制造商在談到其產(chǎn)品時能更清晰。 　　是否制造商會將產(chǎn)品名稱從PLC改到PAC，還有待觀察。但是，GE?Fanuc卻沒有絲毫猶豫，他們立刻接受了PAC的概念，而且在漢諾威展上公開宣布，其新的旗艦控制產(chǎn)品的名稱為PACSystems。GE?Fanuc使用了這個名稱，表達(dá)了其產(chǎn)品綜合了傳統(tǒng)PLC和PC硬件的優(yōu)點，具有通用的編程環(huán)境，Cimplicity?Machine?Edition軟件。有一個單獨的軟件控制引擎，一個開發(fā)工具，多硬件目標(biāo)編程。硬件不僅包括2個新的PACSystems處理器，還包括GE?Fanuc其他的自動化產(chǎn)品，如平板PC、嵌入式PC、MHI和其新的運動控制系統(tǒng)S2K。 　　"PACSystems代表了控制業(yè)的革新，它能使控制集中統(tǒng)一，而非各個完全無關(guān)的部件的拼湊，"?GE?Fanuc自動化（歐洲）的John?Pritchard.認(rèn)為，"一個引擎，加上一個開發(fā)工具，用戶可以利用強大的工程環(huán)境進(jìn)行多種應(yīng)用。" 　　PAC你有我也有 　　2003年11月Rockwell宣布，其為PAC技術(shù)的領(lǐng)導(dǎo)廠商，其產(chǎn)品ControlLogix和CompactLogix?PLC事實上就是PAC。 　　"我們也看到了用戶對控制系統(tǒng)數(shù)據(jù)的無限熱情，用戶可以收集安全、財務(wù)、質(zhì)保程序等方面的信息，"羅克韋爾自動化Ken?Deken認(rèn)為，"為滿足用戶的這個要求，用戶需要控制器和業(yè)務(wù)系統(tǒng)之間的直接聯(lián)系，任何時候都能提供信息。" 　　他認(rèn)為，隨著不斷的發(fā)展，?PAC將采用大量的方法以處理數(shù)據(jù)，并具有升級性，而在多項目控制、集成商務(wù)系統(tǒng)分析和生命周期成本管理等方面也能大踏步地前進(jìn)。