mairomaster , 04-28-2017, 03:53 AM
It's not perfectly clear to me, but I think logical designators are whatever you have in the schematics normally and physical designators are produced after compiling the project.
If you use a multi-channel design for example, with a few repeated blocks, in the schematics you may have R1 lets say. However, R1 is present in every repeated block on the PCB, so you need a different physical designator for each one. You can setup the scheme those are produced - for example you might have R1_1, R1_2, R1_3, etc.
Physical designators can also contain room indexes and other different things, most of which are normally not used.
I started using AD17 recently and I haven't had a major problem yet, but some things are tricky and require some time figuring out.