For an Industrial Controller application, is the ground plane of the PCB = connected to the safety earth /chassis ground connection. I've seen = equipment like PLCs which always have a terminal to connect to Chassis = Ground. The Circuit common ground (0V) seems to be connected to this = terminal. Am I right ? =20 Thanks -- B.Dutta -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.