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In my schematic I have a relay connected to a pin header (the two are in different .sch files), the connection is called RELAY_COM, this connection is not shown in the ratsnets in pcbnew, which prevents me from routing the two together.

I did the footprints and symbols myself for both of them, and although I rebuilt the netlist many times I cannot make the connection show up in pcbnew.

This is also true for other connections, like RELAY_NO.

What am I doing wrong?

Thanks

pcbnew view

schematic view

enter image description here

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  • \$\begingroup\$ is this using Hierarchical sheets? if the label nets RELAY_COM associated with J1 and U5 are at the same Hierarchical level, then this should connect, ASSUMING you used "Update PCB from schematic" to ensure the netlist is imported \$\endgroup\$
    – user16222
    Nov 15, 2021 at 13:11
  • \$\begingroup\$ Another useful discussion about this topic is here \$\endgroup\$
    – Syed
    Nov 15, 2021 at 13:29

1 Answer 1

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You are using simple net labels. These only connect nets within one sheet.

If you are using multiple sheets, you need to use either:

  • global labels: these connect everywhere
  • hierarchical labels: these define connection points between sheets, essentially allowing you to treat each sheet as a component with its own pins.

See the eeschema documentation topics "Wires, Buses, Labels, Power ports" and "Connections - hierarchical labels" for more details.

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