hall efect switch

Apr 20, 2006 1 Replies

i wish to use a hall efect switch as an input to a plc the input voltage to the plc is 24v dc to use such a device will need a switching transisor circuit can anyone advise me I can obtain Honywell devices from RS



Mark.



to make it simple, i would use an opto-isolator. connect the Collector to the 24 vDC> the emitter to the input of the PLC. on the other size, just apply a little current through the diode via a resistor (aprox 470 Ohms)in series from the HallEffect , i am sure the Hall can drive the LED inside enough..

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look there for that Opto and the PDF file.

Real Programmers Do things like this. http://webpages.charter.net/jamie_5

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