ABB Bailey INFI 90

ABB Bailey INFI 90 is a distributed control system hardware family originating from Bailey Controls and used in long-life process installations. Its architecture uses multifunction processors, I/O modules, network interface modules, communication hardware and termination assemblies arranged around the INFI-NET control network. Module families cover analog and digital I/O, sequence control, communication, cabinet termination and process interface functions. INFI 90 hardware performs regulatory control, sequence logic, signal conditioning, inter-controller communication and field device interfacing in installed DCS systems. This collection groups components from the same technical family for engineering reference, maintenance planning, system expansion, and replacement of installed equipment. Models are organized by system role so users can distinguish controllers, I/O, communication, power, interface, sensing, and termination hardware without mixing unrelated automation platforms.