XYCOM XVME-560
咨詢熱線--17750626260
可編程序控制器的輸出信號類型可以是開關量、模擬量和數(shù)字量。輸出單元從廣義上分包含兩部分:一是與被控設備相連接的接口電路,另一部分是輸出的映像寄存器。
PLC運行時CPU從輸入映像寄存器讀取輸入信息并進行處理,將處理結果放到輸出映像寄存器。輸出映像寄存器由輸出點相對應的觸發(fā)器組成,輸出接口電路將其由弱電控制信號轉換成現(xiàn)場需要的強電信號輸出,以驅動電磁閥、接觸器、指示燈等被控設備的執(zhí)行元件。
輸出接口電路通常有三種類型:繼電器輸出型、晶體管輸出型和晶閘管輸出則。每種輸出電路都采用電氣隔離技術,電源由外部提供,輸出電流一般為1.5—2A,輸出電流的額定值與負載的性質有關。
【誠信經(jīng)營】【質量可靠】【進口原裝】【拆包防偽】
【超大庫存】【當天付款】【順豐速運】【歡迎搶購】
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廈門莫格電氣自動化有限公司
張芳(銷售工程師)
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