140CPU53414B 億佳有圖
西門(mén)子PLC模塊6
可編程控制裝置是由現(xiàn)代化生產(chǎn)的需求而產(chǎn)生的，可編程序控制裝置的分
西門(mén)子PLCS7-200系列西門(mén)子PLCS7-200系列
類(lèi)也必然要達(dá)到現(xiàn)代化生產(chǎn)的需求。
一般來(lái)講可以從三個(gè)角度對(duì)可編程序控制裝置進(jìn)行分類(lèi)。其一是從可編程序控制裝置的控制規(guī)模大小去分類(lèi)，其二是從可編程序控制裝置的性能低去分類(lèi)，其三是從可編程序控制裝置的結(jié)構(gòu)特點(diǎn)去分類(lèi)。
控制規(guī)模
一般分為大型機(jī)、中型機(jī)和小型機(jī)。
西門(mén)子PLCS7-300系列西門(mén)子PLCS7-300系列
小型機(jī): 小型機(jī)的控制點(diǎn)一般在256點(diǎn)之內(nèi),適合于單機(jī)控制或小型系統(tǒng)的控制。
西門(mén)子小型機(jī)有S7-200：處理速度0.8~1.2ms ；存貯器2k ；數(shù)字量248點(diǎn)；模擬量35路 。
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