Plc

Dracula

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May 2013

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Fort Mcmurray

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• May 9, 2013

• #1

Hi,I'd like to use 3 induction sensors A,B,C to get an output signal only when the input combination is A 0,B 1,C 0. The inputs change 10 times per second. I'd like to use the output for an LED in a dash. Is there any simple way? Thanks.

 

CalG

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Feb 2013

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VT

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• May 9, 2013

• #2

Wouldn't a plc be overkill? Logic gates would do what you ask.

Dracula said:

Hi,I'd like to use 3 induction sensors A,B,C to get an output signal only when the input combination is A 0,B 1,C 0. The inputs change 10 times per second. I'd like to use the output for an LED in a dash. Is there any simple way? Thanks.

Click to expand...

Search the net on semiconductor logic gates. "and" gates should fit in a very small package if the only requirement is to pass several milliamps at 3 V.

 

CalG

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• May 9, 2013

• #3

Here is a tutorial reference

http://www.williamson-labs.com/480_logic.htm

 

Lancie1

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• May 10, 2013

• #4

Hmmmm....I wonder who suggested using a PLC for lighting up an LED?

 

Dracula

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• May 10, 2013

• #5

Usefull indeed, Thanks.