Hi there!
Recently we made a stupid mistake as following picture: the net "VCC12IN" should connect toJ6E's pinE1 but it's actually "float". The entire J6E was dislocated by one pin space(you could see pin.E25 is empty) . However, the "VCC12IN" I marked with circle is actually not a truely isolated net because it's correctly connetced to J6D's pin.D1. That's why DRC function "check single node nets" is useless here.
Could orcad DRC find this kind of faults in schematic?
Thanks a lot!
