Understanding CAN Connections

[JRCL]

Hello, was just hoping for some clarity and verification of my understanding of daisy chaining CAN-FD boards. If I have a Duet 3 MB6HC, 1LC toolboard, and 1XD expansion board that need to be connected, could I wire them like so?

Does the CAN pass through work like I'm thinking on the 1XD board or do I need a tool distribution board?

[jay_s_uk]

@JRCL the way you have drawn it is correct. And you only need 2 wires going to the 1LC

[T3P3Tony]

@JRCL Yes that will work. The bus pass through is designed to be used in this way. Ensure the termination jumpers are not fitted on the 1XD, ad depending on the1LC toolboard version you either need to add a termination resistor or bridge the termination jumper pad on the toolboard.

See connecting without a tool distribution board here:
https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Toolboard_1LC#can

If you are planning on adding more tools in the future then a tool distribution board can make that easier but if the machine is only going to have 1 tool then the scheme you are planning will work ok

[JRCL]

Thanks for the quick responses! Looking forward to trying out this configuration