ABB DSDX452 BASIC I UNIT Distributed IO Control Unit

ABB DSDX452 BASIC I UNIT is a remote digital input/output (I/O) unit in the Advant S400 I/O family, designed to act as a basic I/O expansion for ABB’s System 800xA distributed control architectures. Identified by part number 5716075-P, this Basic I/O Unit provides digital input and output signaling for field devices as a remote I/O interface that connects with ABB’s distributed control network. With a weight of about 5.06 lb, the module is intended for installation in ABB Advant Master ecosystems and is associated with S400 I/O, Procontrol P14, and System 800xA configurations. ABB has discontinued the DSDX452, making it a legacy option within older Advant/S400 deployments. Typical applications include machine automation and process lines where remote DI/DO expansion is needed across a distributed control system, such as packaging lines, conveyors, and automated manufacturing cells that rely on System 800xA or Procontrol P14 control hierarchies. As a digital I/O unit, DSDX452 is designed to interface with field sensors and actuators, providing reliable remote signaling to the central controller without occupying local I/O slots on the main controller cabinet.