I was hoping multiple labels on wires would allow using different physical and logical names for the same signal (e.g. "net42" to match a different schematic on "the other side" of a connector, and "PWM" for the logical signal).
KiCAD allows this (http://docs.kicad-pcb.org/4.0.7/en/eeschema.html#connections-wires-and-labels):
If two different labels are placed on the same wire, they are connected together and become equivalent: all the other elements connected to one or the other labels are then connected to all of them.
Unfortunately, when I try to extract the signal names for each pin of a specific component, it seems only the label that has been used first is used in the netlist.
I was hoping to get information about the additional wire name(s) from the netlist (i.e. a list ["net42", "PWM"] or a combined string like "net42, PWM"), but it seems I have to limit myself to one label in order to have that info show up in the netlist?