ABB 5716075-K Master Expansion IO Interface Unit

ABB 5716075-K DSDX 451 Remote In/Out Expansion Unit is a master expansion I/O interface for ABB Advant Master process control systems, extending the digital I/O capabilities of the S400 I/O family. It provides 20 digital inputs (DI) and 12 digital outputs (DO) for remote sensing and actuation, with 24 V digital inputs and outputs rated 0.1–3 A for the relay-type outputs. For backplane power, the unit is specified to consume up to 50 VA and supports an AC supply of 240/220/120 VAC at 47–63 Hz. Connectivity is via ABB-specified plug assemblies: 4-position plug 2664197-4, 2-position plug 2664193-2, and 8-position plug 2664193-8, enabling integration with Advant Master hardware.