Allen-Bradley 1756-IB16 16-Point Digital Input Module

Allen-Bradley 1756-IB16 is a ControlLogix 16-point digital input module that accepts 10–31 V DC field signals and uses sinking inputs across two 8-channel groups. Designed for the 1756 I/O backplane, it translates each digital input into a real-time PLC signal while providing input and communication status and a module health display for diagnostics. The module supports removable terminal blocks to simplify wiring and allows modular wiring harnesses, with 16 channels arranged as eight per group for organized field connections. Typical applications include reading digital sensors, limit switches, door sensors, and other 24 V DC devices on manufacturing lines, conveyors, and packaging equipment where reliable 24 V DC sensing is required. The 1756-IB16 is part of Rockwell Automation's ControlLogix family, compatible with a broad range of 1756-series I/O chassis and diagnostics tooling.