Thanks, Martin,
You did provide the crucial clue.
I originally created child components named something like
hdv2_conn_15p so I could child them to devices and have them all together and uniquely described.
Then when I got the encoder info for my drawing, I decided to take it another step and create a similar parent device, which
I named hc01_conn_15p.
That was the no-no. When I renamed the parent hdv1_conn_15p, all the wire numbers came in correctly. So the lesson is that if a parent device is in the family c0, all the points on it will take the same wirenumber regardless of the TERMXX value.
Thanks for heading me down the correct path.
Lynne