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Re: cRIO 2015 : NI roboRIO
Quote:
Originally Posted by adciv
The Power Distribution Board has the termination resistor, not the RoboRio.
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Not true.
For Controller Area Networks (CAN) to work properly, both ends of the bus need to be terminated.
This is because communication flows both ways on the CAN bus therefore both ends of the pair of signal wires (CAN_H and CAN_L) must be terminated.
The RoboRio has an internal terminating resistor that can not be removed. This means the RoboRio should always be at one end of the CAN Interface. The PD Board, has a setable terminating resistor by way of a jumper, this means the PD Board can be used at the other end of the CAN interface if the jumper is in place. However, the PD Board does not have to be at the end of the bus, you can remove the jumper and put another device after the PD Board, just make sure to add a terminating resistor to that device.
Hope this helps,
Kevin
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Controls Engineer, Team 2168 - The Aluminum Falcons
[2016 Season] - World Championship Controls Award, District Controls Award, 3rd BlueBanner
-World Championship- #45 seed in Quals, World Championship Innovation in Controls Award - Curie
-NE Championship- #26 seed in Quals, winner(195,125,2168)
[2015 Season] - NE Championship Controls Award, 2nd Blue Banner
-NE Championship- #26 seed in Quals, NE Championship Innovation in Controls Award
-MA District Event- #17 seed in Quals, Winner(2168,3718,3146)
[2014 Season] - NE Championship Controls Award & Semi-finalists, District Controls Award, Creativity Award, & Finalists
-NE Championship- #36 seed in Quals, SemiFinalist(228,2168,3525), NE Championship Innovation in Controls Award
-RI District Event- #7 seed in Quals, Finalist(1519,2168,5163), Innovation in Controls Award
-Groton District Event- #9 seed in Quals, QuarterFinalist(2168, 125, 5112), Creativity Award
[2013 Season] - WPI Regional Winner - 1st Blue Banner
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