I can't remember very clear, I haven't touch DC for years. But you can use the "get_attribute ref_name instance_name", use "help get_attribute" to see the syntax
Your answer is useless.
To command "help *port*" in dc_shell is only getted the error messege.
dc_shell> help *port*
Error: No manual entry for '*port*'. (UI-2)
0
I have known how to get the wire name connected to the known port/pin.
Thanks everyone.