Allen-Bradley 1756-IA16 16-Point DC Input Module

The Allen-Bradley 1756-IA16 is a 16-point DC input module for ControlLogix I/O networks that expands field-signal capacity in industrial automation. It provides 24V DC input channels with either sinking or sourcing configuration depending on wiring, and communicates over the ControlLogix backplane interface to Allen-Bradley ControlLogix controllers. Designed for robustness in factory environments, the module features optical isolation for input channels and supports mounting on DIN rail or chassis mount (system dependent). Operational temperature range is 0°C to 55°C. Typical applications include conveyors, packaging machinery, material handling equipment, batch processing lines, and machine control panels that monitor sensors, switches, proximity detectors, and other field devices. The 1756-IA16 is intended for scalable, high-performance control systems and can serve as an expansion or replacement option within distributed ControlLogix architectures. Common replacements listed include 1756-IA8, 1734-IB16, and Siemens 6ES7 321-1BL00-0AA0, reflecting its positioning in mixed-system environments while maintaining native ControlLogix compatibility.