描述
上世紀(jì)60年代后期，根據(jù)當(dāng)時(shí)汽車市場(chǎng)需求和計(jì)算技術(shù)的發(fā)展，在美國麻薩諸塞州Bedford的Bedford Associates,向美國汽車制造業(yè)提議開發(fā)一種Modular Digital Controller（MODICON）取代繼電控制盤。其它一些公司也建議以計(jì)算機(jī)為基礎(chǔ)的方案。其核心思想是采用軟件編程方法代替繼電控制的硬接線方式，并備有生產(chǎn)現(xiàn)場(chǎng)大量使用的輸入傳感器和輸出執(zhí)行器的接口，以便于進(jìn)行大規(guī)模生產(chǎn)線的流程控制。這就是以后被稱為Programmable Logic Controller的由來。MODICON 084是世界上第一種投入商業(yè)生產(chǎn)的PLC。
70年代是PLC崛起，首先在汽車工業(yè)獲得大量應(yīng)用，在其它產(chǎn)業(yè)部門也開始應(yīng)用的時(shí)期。80年代是它走向成熟，全面采用微電子及微處理器技術(shù)；大量推廣應(yīng)用，并奠定其在工業(yè)控制中不可動(dòng)搖地位的時(shí)期。在此階段PLC銷售始終以兩位數(shù)百分點(diǎn)的速度增長，前六年的增長率超過35%，后四年穩(wěn)定發(fā)展，年增長率約12%。90年代又開始了它的第三個(gè)發(fā)展時(shí)期。隨著PLC的國際標(biāo)準(zhǔn)IEC 61131的正式頒布，推動(dòng)了PLC在技術(shù)上發(fā)動(dòng)新的突破：
在系統(tǒng)體系結(jié)構(gòu)上，從傳統(tǒng)的單機(jī)向多CPU和分布式及遠(yuǎn)程控制系統(tǒng)發(fā)展；在編程語言上，文本化和圖形化的語言多樣性，創(chuàng)造了更具表達(dá)控制要求、文字處理、通信能力的編程環(huán)境。
從應(yīng)用范圍和應(yīng)用水平上，除了繼續(xù)發(fā)展機(jī)械加工自動(dòng)生產(chǎn)線的控制系統(tǒng)外，則是發(fā)展以PLC為基礎(chǔ)的DCS系統(tǒng)、監(jiān)控和數(shù)據(jù)采SCADA系統(tǒng)、柔性制造系統(tǒng)（FMS）、安全聯(lián)鎖保護(hù)（ESD）系統(tǒng)、運(yùn)動(dòng)控制系統(tǒng)等，全方位地產(chǎn)提高PLC的應(yīng)用范圍和水平。
進(jìn)入90年代后期，由于用戶對(duì)開放性的強(qiáng)烈要求和壓力，由于信息技術(shù)的大力推動(dòng)，PLC如果還停留在原有的專用而又封閉的系統(tǒng)概念上，它將坐以待斃。于是PLC進(jìn)入了其發(fā)展的第四階段。其特征是：
在保留PLC功能的前提下，采用面向現(xiàn)場(chǎng)總線網(wǎng)絡(luò)的體系結(jié)構(gòu)，采用開放的通信接口，如以太網(wǎng)、高速串口等。
采用各種相關(guān)的國際工業(yè)標(biāo)準(zhǔn)和一系列的事實(shí)上的標(biāo)準(zhǔn)。
產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。
主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門子，摩托羅拉，安川。力士樂。ACSO，橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家
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Agilestar – ONS-SC-2G-58-1 – For Cisco – New in Box
Agilestar – ONS-SC-2G-58-9 – For Cisco – New in Box
Agilestar – ONS-SC-2G-59-7 – For Cisco – New in Box
Agilestar – ONS-SC-2G-60-6 – For Cisco – New in Box
Agilestar – GP-XFP-1Z – For Force 10 Networks – NIB
Agilestar – ONS-SC-2G-54-1 – For Cisco – New in Box
Agilestar – 10GBASE-ZR – For Enterasys Networks – NIB
Agilestar – FIM81550 – For Fujitsu – New In Box
Agilestar – J8176A – For HP – New in Box
Agilestar – SMC10GXEN-ER – For SMC – New in Box
Agilestar – AS-XFP-10G-ZR – For Agilestar – New in Box
Agilestar – DS-X2-FC10G-LR – For Cisco – NIB
Agilestar – FIM31052/120-AS – For Fujitsu – New in Box
Agilestar – FIM31052 – For Fujitsu – New In Box
Agilestar – 10G-XFP-ZR – For Foundry Networks – NIB
Agilestar – AA1403006-E5 – For Nortel – New in Box
Agilestar – FTLX1841E2-AS – For Finisar – New in Box
Agilestar – XFP-10GZR-OC192?LR – For Cisco – NIB
Agilestar – 10G-XNPK-ZR – For Foundry Networks – NIB
Agilestar – ONS-SC-Z3-1470 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1490 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1510 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1530 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1550 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1570 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1590 – For Cisco – New In Box
Agilestar – ONS-SC-Z3-1610 – For Cisco – New In Box
Agilestar – SF2G-LX4-5C-47-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-49-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-51-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-53-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-55-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-57-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-59-?AS – For FibroLAN – New in B
Agilestar – SF2G-LX4-5C-61-?AS – For FibroLAN – New in B
Agilestar – 3HE00047AA – For Alcatel-Lucent – NIB
Agilestar – FTRX-1811-3 – For Finisar – New In Box
Agilestar – ONS-SE-2G-1470 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1490 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1510 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1530 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1550 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1570 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1590 – For Cisco – New In Box
Agilestar – ONS-SE-2G-1610 – For Cisco – New In Box
Agilestar – DWDM-XENPAK-36.?61 -For Cisco – New in Box
Agilestar – DWDM-X2-30.33 – For Cisco -10GBASE-DWDM
Agilestar – DWDM-X2-31.12 – For Cisco -10GBASE-DWDM
Agilestar – DWDM-X2-31.90 – For Cisco – 10GBASE-DWDM
Agilestar – DWDM-X2-32.68 – For Cisco – 10GBASE-DWDM
Agilestar – DWDM-X2-34.25 – For Cisco – 10GBASE-DWDM
Agilestar – DWDM-X2-35.04 – For Cisco – 10GBASE-DWDM
Agilestar – DWDM-X2-35.82 – For Cisco – 10GBASE-DWDM
Agilestar – DWDM-X2-36.61 – For Cisco – 10GBASE-DWDM
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