描述

FOXBORO-FBM07

1968 年，美國最大的汽車制造商——通用汽車公司 (GM) 為了適應(yīng)生產(chǎn)工藝不斷更新的需要，要求尋找一種比繼電器更可靠，功能更齊全，響應(yīng)速度更快的新型工業(yè)控制器，并從用戶角度提出了新一代控制器應(yīng)具備的十大條件，立即引起了開發(fā)熱潮。主要內(nèi)容是： ①編程方便，可現(xiàn)場修改程序； ②維修方便，采用插件式結(jié)構(gòu)； ③可靠性高于繼電器控制裝置； ④體積小于繼電器控制盤； ⑤數(shù)據(jù)可直接送入管理計算機； ⑥成本可與繼電器控制盤競爭； ⑦輸入可為市電； ⑧輸出可為市電，容量要求在 2A 以上，可直接驅(qū)動接觸器等； ⑨擴展時原系統(tǒng)改變最少； ⑩用戶存儲器大于 4KB 。 這些條件實際上提出將繼電器控制的簡單易懂、使用方便、價格低的優(yōu)點與計算機的功能完善、靈活性、通用性好的優(yōu)點結(jié)合起來，將繼電接觸器控制的硬接線邏輯轉(zhuǎn)變?yōu)橛嬎銠C的軟件邏輯編程的設(shè)想。 1969 年，美國數(shù)字設(shè)備公司 (DEC 公司 ) 研制出了第一臺可編程控制器 PDP—14 ，在美國通用汽車公司的生產(chǎn)線上試用成功，并取得了滿意的效果，可編程控制器自此誕生。 可編程控制器自問世以來 , 發(fā)展極為迅速。 1971 年，日本開始生產(chǎn)可編程控制器。 1973 年，歐洲開始生產(chǎn)可編程控制器。到現(xiàn)在，世界各國的一些著名的電氣工廠幾乎都在生產(chǎn)可編程控制器裝置?？删幊炭刂破饕炎鳛橐粋€獨立的工業(yè)設(shè)備被列入生產(chǎn)中，成為當(dāng)代電控裝置的主導(dǎo)。編程控制器的名稱演變 從可編程控制器發(fā)展歷史可知，可編程控制器功能不斷變化，其名稱演變經(jīng)歷了如下過程：早期產(chǎn)品名稱為“ Programmable Logic Controller ”（可編程邏輯控制器），簡稱 PLC ，主要替代傳統(tǒng)的繼電接觸控制系統(tǒng)。隨著微處理器技術(shù)的發(fā)展，可編程控制器的功能也不斷地增加，因而可編程邏輯控制器（ PLC ）不能描述其多功能的特點。 1980 年，美國電氣制造商協(xié)會（ NEMA ）給他一個新的名稱“ Programmable Controller ”，簡稱 PC 。

產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準(zhǔn)時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(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，橫河等進口品牌。Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA

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APPLIED MICROWAVE LABS AML MODEL 1101 H PLUG IN MODULE

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TRANSISTOR DEVICES DYNALOAD MODEL DLF 50-85-500

OSRAM 500W HBO500W/B MERCURY SHORT ARC PHOTO OPTIC LAMP

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