ABB S800 I/O

ABB S800 I/O is a modular distributed I/O family used with ABB control systems. Its architecture combines field I/O modules, module termination units and communication interfaces connected through the S800 station structure. The family supports analog, digital and communication functions with modular channel density, field wiring separation and hot-replacement options on supported configurations. S800 hardware acquires field signals, drives outputs and links process instrumentation to controllers such as AC 800M. 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.