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专利名称：Light barrier发明人：Salim, Ehsan申请号：EP86113581申请日：19861002公开号：EP0230517A3公开日：19880330
摘要：the photocell is working with three \überwachungskan\älen (signal a, band c). a channel monitors whether a ausgesandter light is also received. the secondchannel is monitored, whether during a lichtimpulspause still a (faulty) receives a lightpulse is reported.the third channel monitors the two channels and, in particular, hasansprechempfindlichkeit when an error occurs. digital input signal in pulse form, i.e., thethree channels of analogue. the third channel is a dynamic channel, the only dynamic.shares its input addresses (fig.1).
申请人：AG für industrielle Elektronik AGIE Losone bei Locarno
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