Allen-Bradley 1734-IB8 Eight-Point Input Module

Allen-Bradley 1734-IB8 Eight-Point Input Module is a POINT I/O digital input block that provides eight 24V DC input channels in a single module for Rockwell Automation’s POINT I/O system. This sinking-input module is designed to interface with field devices such as switches, pushbuttons, and sensors, feeding discrete input states back to a compatible CompactLogix or ControlLogix controller via the 1734 POINT I/O bus. Each of the eight channels is intended for 24V DC operation, with a nominal input voltage of 24 V DC and an on-state voltage range commonly cited as 10 to 28.8 V DC, supporting an on-state current of a few milliamps per channel (typical 2–5 mA). The 1734-IB8 is part of the 1734 POINT I/O family, enabling distributed I/O with straightforward daisy-chained wiring and quick installation in standard 1734 backplanes or terminal bases. Typical applications include machine-level I/O for start/stop circuits, door interlocks, limit switches, and status indicators where multiple binary inputs are required in a compact, modular footprint.