Multiple CAN Bus Outputs

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Jman
Posts: 9
Joined: Mon Oct 26, 2015 2:47 pm

Multiple CAN Bus Outputs

Post by Jman »

I have one CAN bus line coming from a Syvecs S8 into an external datalogger. I would like to add a dash instrumentation device which requires a CAN input. In the S8 pinout sheet there are two CAN outputs listed but I can't find a way in SCal to differentiate between the two. The CAN output going to the datalogger is configured as a custom CAN right now.

Are both CAN outputs from the S8 outputting the same data, or is there a way to configure a different datastream for each CAN output? Thanks for the help.
pat
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Re: Multiple CAN Bus Outputs

Post by pat »

Jman,

CustomCAN is only output on one of the CAN buses. But the clue is in the name.... CAN bus :) This means that it can connect to more than two devices, ie you can connect your datalogger AND your dash to the same bus. You will just need to make sure that it is terminated correctly - the ECU is already terminated, so whichever device you have at the other end should also be terminated (be that the dash or the logger). The connection should be made using twisted pair wires, and they should go from one, to the next, to the next... so the middle device in the chain will have two lots of CAN wires on each CAN pin - one wire going to the ECU and one wire going to the last device in the chain.

Hope this helps,

Pat.
Jman
Posts: 9
Joined: Mon Oct 26, 2015 2:47 pm

Re: Multiple CAN Bus Outputs

Post by Jman »

Thank you for the response Pat! I will try the strategy you mentioned.
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