In accordance to the ARC definition of a PAC, CJ2H CPUs have a built-in tag name server to manage tag names and I/O addresses to support standard Tag Based Programming. This gives external devices access using tag names without the user needing to know the I/O addresses. Also new from Omron are E3FZ photosensors with a SecureClick snap mounting. The mounting is said to drastically speed installation, eliminating the need for nuts and screws.