IC610CHS110 GE

336A5007AL060
336A5007AL048
336A5101PAC115
336A5115G1
336A5102P1
336A5102P2
336A5102P3
336A5116P250
336A5116P30
336A5199AKP1

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描述

两边垂直的线称为母线,在母线之间通过串并(与、非)关系构成一定的逻辑关系。PLC中还有一个关键的概念“能流”(Powerplow)。这仅仅是概念上的能流。如图,把梯形图中左边的母线假想为电源的“火线”,右边的母线假想为“零线”。如果有“能流”,则从左至右流向线圈,线圈被激励。原则线圈未被激励。母线中是否有“能流”流过,即线圈能否被激励,其关键主要取决于母线的逻辑线路是否接通。

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