在一些純采集的系統(tǒng)中，OPTO產(chǎn)品應用較多。主要優(yōu)點是維護量少。如果需要有閉環(huán)控制，在人機界面和I/O之間加類似于PC機（LC4）的控制器，在控制器中有一些功能塊，可以組態(tài)各種控制策略。一般情況下，因為功能塊的數(shù)量比較少，所以作為有幾千個I/O點的大控制系統(tǒng)采用OPTO22的還比較少。
OPTO開關(guān)量的小模塊應用zui多的是作為DCS開關(guān)量輸入模件的隔離模塊。使DCS本身免遭雷擊干擾。由于制造工藝比較簡單，國產(chǎn)的模塊用戶反映也很好用，但價格不到進口的一半。
█企業(yè)熱點：★主營品牌系列Allen-Bradley
Schneider、Siemens 、Ge_-_--— plc可編程控制器
abb、Westinghouse、TRICONEX、 ?？怂共__-__- —dcs集散式控制系統(tǒng)
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█企業(yè)熱點咨詢+++++++++[]
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140XBE10000
140XBE10000
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ABB 20A TYPE ES NE-7280 3 POLE 600VAC 500VDC ESB63020L
