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Posted: 2021-08-12 07:06 AM
Hi
So I'm trying to connect a coin acceptor to a M221C24T.
As I undestand it the coin acceptor (RM5 Evolution) sends a 100ms pulse everytime it recognizes a coin, however the plc is not recognizing that pulse. I've tried to configure a pulse input but have not been sucessfull.
Pretty sure ( or maybe not) that the acceptor is functioning correctly.
Need it to recognize a coin, send the pulse to the plc. What am I doing wrong?
Thank you
Posted: 2021-08-12 07:35 AM
Hi,
I think the problem is that the coin acceptor works with a NPN output and the TM221 has a PNP input.
In my opinion it will make sense if you test at first the output signal of the coin validator with a voltage measuring device.
Posted: 2021-08-12 07:35 AM
Hi,
I think the problem is that the coin acceptor works with a NPN output and the TM221 has a PNP input.
In my opinion it will make sense if you test at first the output signal of the coin validator with a voltage measuring device.
Posted: 2021-08-12 07:54 AM
Hello
I completely missed that. Your probably right,
Probably need a osciloscope that I don't have to test it, since a multimeter won't detect that pulse.
Thank you for pointing that out, completely missed it.
TY
Posted: 2021-08-25 01:48 AM
Just inverted the polarity with a relay, easy solution
Thank you for pointing thar out.
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