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Unread 08-02-2011, 11:11
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
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Re: Why are Limit Switches outlawed with PWM, but not CAN?

Phil,
Under CAN the state of the limit switch must be read by the Crio and then a motor command is issued if the FMS is still allowing active motion. The limit switch in PWM mode controls the Jaguar directly, independent of the the Crio, and therefore, will continue to run the motor without interaction with FMS. Motion must stop under control of the FMS for either match play or safety disablement.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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