The Allen-Bradley 1734-IB8S is a high-reliability, distributed safety input module engineered for safety-critical industrial applications. Operating on the POINT I/O platform, this module provides 8 safe digital inputs alongside 4 pulse test outputs, allowing for continuous diagnostic monitoring and fault detection in automation architectures. It monitors safety devices such as emergency stops, light curtains, safety gates, interlock switches, and two-hand control assemblies. The module supports single-channel and dual-channel (equivalent/complementary) configurations with discrepancy monitoring.

❖ Nominal Input Voltage: 24V DC

❖ Operating Voltage Range: 11V to 28.8V DC

❖ Digital Input Type: 24V DC Sinking (PNP) type

❖ Number of Safe Digital Inputs: 8 channels

❖ Number of Pulse Test Outputs: 4 channels

❖ Operating Temperature: -20 °C to 55 °C (-4 °F to 131 °F)

❖ Storage Temperature: -40 °C to 85 °C (-40 °F to 185 °F)

❖ Relative Humidity: 5% to 95% non-condensing

Ø Emergency Stop Circuits: Interfacing with emergency stop pushbuttons to immediately halt hazardous machinery upon activation.

Ø Light Curtains and Safety Gates: Monitoring presence-sensing safety devices and interlocking guard doors to protect factory personnel.

Ø Distributed safety I/O networks – Provides safety‑rated inputs in CIP Safety™ systems with GuardLogix® and Compact GuardLogix® controllers.