I'm currently working on a project of analyzing the latency of a CAN bus network with transceivers and without transceivers. The latency parameter here will be analyzed with the effect of bus line length variations (2 m, 5 m, 8 m, 10 m, and so on). I'm trying to figure out the maximum bus length that a "non-transceiver" CAN bus network can work with.
The "non-transceiver" CAN bus network requires a single wire bus line. I'm using this application note as my reference to build the "non-transceiver" network, the figure of a CAN bus without a transceiver will describe what I meant by "single wire". mikrocontroller.net/attachment/28831/siemens_AP2921.pdf
As you can see from the document, it is stated that the "non-transceiver" CAN bus can only work for only << 1 m bus length, but I've found someone has used this "non transceiver" network for a 4 m bus line, and it worked. So there's no scientific proof of the statement of "it is only usable for << 1 m". My goal here is to find the maximum bus length for the "non-transceiver" bus length.
(I've tried the "non-transceiver" network and it worked. The CAN nodes can communicate to each other.)
I'm having a problem with making the equivalent circuit (model) of single wire bus for a certain bus length (let's say 10 m for an example). What is the resistance and the inductance for the model? How do I make the calculations? Can somebody help me with this?