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The product identified as ABB DI831 is a Digital Input Module in the Advant 800xA hardware family.
Within the process-control arrangement, a digital input module receives discrete on/off states from field contacts and devices, then makes those states available to the controller for monitoring, sequencing, alarms, and interlocks. Configuration records should be reconciled with the exact installed assembly.
ABB Advant and System 800xA environments combine control, I/O, communication, and operator resources. This product supports the hardware function identified by its description within the installed system. Existing connection and module records should guide replacement work.
For ongoing lifecycle support, proper application depends on matching the product to the original control-system design, including its physical position, electrical connections, and configured relationship with surrounding hardware. Selection should account for the intended surrounding hardware configuration.
Alt# 3BSE013212R1
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