I'm wondering if anyone knows if there is an upper limit for the distance a terminating resistor can be from the literal end of the CAN bus or where the last node is.
We have an HMI that is connected to the CAN bus and it is located beside a panel. We are wondering if it is acceptable to have the terminating resistor within the panel itself (via a terminal block) and a harness would run from there to the HMI. The cable distance would be about 10' (including strip length and distance between the panel and HMI).
We are hoping this will be acceptable purely for aesthetics, because this will eliminate the amount of loose wires hanging near the HMI.
I've gone through the TI physical layer instructions and did not find any such constraint.
I'm guessing the distance would only be an issue if the line impedance increases dramatically due to the length of cable but I'd like to know for sure.