Quote:
Originally Posted by Cal578
My main concern with CAN is that it's a single point of failure: one module fails or gets disconnected, and the whole chain may be offline.
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Although daisy-chaining obviously creates this impression, do note that the CAN ports on the Black Jags (I won't vouch for the Greys, having not touched them for multiple years now) are hardwired together, so if one Jag in the line fails, it does not necessarily shut the entire system down. If you're using serial-to-CAN, however, and the converting Jag dies, then your system will shut down.
I'd also like to point out that, as an expensive alternative (provided you have the funds), the
2CAN offers a much more sophisticated CAN interface than a serial-to-CAN can offer, and also provides better performance (if you don't plan to rely heavily on CAN during the season, you won't need its advantages - but it never hurts to know more!).
With reference to the star topology that Ether mentioned, here's a
backbone setup that you can try out for yourself.
Good luck!