產(chǎn)品介紹: 1794-VHSC
傳感器的種類很多,其輸出方式也各不相同。當采用接近開關(guān)、光電開關(guān)等兩線式傳感器時,由于傳感器的漏電流較大,可能出現(xiàn)錯誤的輸入信號而導(dǎo)致PLC的誤動作,此時可在PLC輸入端并聯(lián)旁路電阻R,如下圖所示。當漏電流不足lmA時可以不考慮其影響。
【主營】:PLC模塊,DCS卡件,ESD系統(tǒng)卡件,振動監(jiān)測系統(tǒng)卡件,汽輪機控制系統(tǒng)模塊。
1794-VHSC
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〖Wuhan xiatong Automation〗
【】:歐陽英
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ALLEN BRADLEY 1756-IB16 1756IB16 CONTROLLOGIX OVER 200 ...
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ALLEN BRADLEY PANELVIEW 2711-K10G8 2711K10G8
ALLEN BRADLEY 2711P-B15C4D2 2711PB15C4D2 NEW NIB 2012
ALLEN BRADLEY GUARDMASTER 440L-M8200 440L8200
ALLEN BRADLEY 20-COMM-P 20COMMP PROFIBUS
ALLEN BRADLEY PROSOFT MVI56-GSC MVI56 GSC NO DOOR
ALLEN BRADLEY 1756-OB32 1756OB32 NEW NIB FS 2011
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ALLEN BRADLEY 1756-IB16 1756IB16 NEW NIB