EPP 7I43

The problem seems to be here:
github.com/LinuxCNC/linuxcnc/blob/2b37c8...onf/pncconf.py#L3838

It seems to be a mismatch between signal names and what is being checked for.

A workaround would be to edit the file (it's Python so you can just do that) to simply set pwm = True in the line underneath the "if" and it should work.
(Definitely looking like a bug)

No joy. It is still doing the same.

Is this using linuxcnc's 7i43 firmware or something else?
What version of linuxcnc are you using?

It is not a bug. It is a moron. I did not have the 5v supply connected to the 7i43.

glad you figured it out - it's happened many times before