The ABB AI522 (1SAP251000R0001) is an 8-channel analog input module with 16-bit resolution, configurable for voltage, current, RTD, or digital input signals. Housed in an IP20 enclosure, it fits standard Distributed Automation I/O racks.
16-bit resolution across 8 analog inputs.
This module is current production with active lifecycle status. No last-time-buy windows or replacement notices exist; it is standard catalog and sourced to order.