Allen-Bradley 1756-IB16S ControlLogix Safety Input Module

The Allen-Bradley 1756-IB16S ControlLogix Safety Input Module is a 16-channel sinking safety input module for ControlLogix CIP Safety networks, delivering 24V DC safety input signals to the controller. Each of the 16 inputs is designed for safety-rated operation and is referenced as SIL 3 rated, enabling reliable monitoring of safety devices within a ControlLogix safety I/O setup. In a safety configuration, the module reports safety input data along with general fault data back to the owner-controller, supporting fault management and safe operation of devices such as emergency-stop switches and safety interlocks. As part of Rockwell Automation’s CIP Safety I/O family, the IB16S integrates with standard ControlLogix I/O addressing and uses a removable terminal block for wiring, clearly identified as a 16-point sinking safety input module designed for 24VDC signaling.