ABB S800 I/O is a modular I/O product family used to connect field signals with controllers and distributed control systems. Its architecture typically combines communication interfaces, plug-in I/O modules, terminal or base units, power distribution elements, and field wiring connections. Technical characteristics vary by module and ordering code, including channel type, signal range, isolation, bus interface, mounting format, diagnostics, and controller compatibility. Available hardware in this collection represents analog, digital, communication, and termination functions within the series. Functionally, the system acquires field inputs, drives outputs, transfers process data, and distributes I/O closer to plant equipment. Individual modules are selected according to signal requirements, channel count, electrical characteristics, communication architecture, and the exact configuration of the installed control platform.
