Intrinsically safe Allen-Bradley 1718 Ex distributed I/O modules provide EtherNet/IP connectivity to field devices in Zone 0 and Zone 1 hazardous areas. The modules can reduce wiring in industrial applications because they can be mounted in Zone 1, closer to field devices in hazardous areas. They also can save space with a compact, chassis-based I/O design that contains the primary power supply and an optional redundant power supply in the chassis. Different chassis options and slot sizes allow users to scale the modules to meet a range of system requirements. Add-on profiles in the Studio 5000 Logix Designer application help ease module configuration.