Allen-Bradley 1771IADC Input Module

Allen-Bradley 1771IADC Input Module is a 16-point, isolated AC/DC input module for the 1771 I/O chassis used in PLC-5 and other 1771 networks, providing a direct interface for digital field signals to the controller. Each of the 16 inputs is isolated from the backplane and supports AC or DC field signals; the module includes input filtering and status indicators to monitor channel health, with a fault-mode selector to define input behavior on fault (reset or last state). The module installs in a 1771 I/O backplane and connects to the field wiring arm (1771-WD) for field wiring, and is compatible with 1771 networks such as ControlNet, Remote I/O, and Extended Local I/O. Cataloged as 1771IADC (Series D), this module delivers rugged, reliable digital input interfaces for industrial automation systems using Allen-Bradley 1771 I/O.