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Unread 25-01-2015, 15:43
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
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Re: Photoeye's not working-Difference between RoboRIO and Digital Side Card?

Quote:
Originally Posted by Lightfoot26 View Post
I did find when I probed for continuity across the signal line at the roboRIO while it was plugged in, and the negative terminal the sensor was plugged into at the PDP, the sensor began functioning properly both on the meter and in code. Weird I know, but it was something I noticed.
Seth,
Can you tell us which meter you were using and I am guessing you were in continuity mode and not resistance mode? It is possible that there is a component in series with the negative lead on one or more of the control components. Your meter might have reduced the impedance sufficiently to allow the sensor to turn on. Depending on the component and the series impedance, it is possible that the sensors are not receiving sufficient power supply to operate. As I remember, the Banner sensors require a specific power supply voltage.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.