Allen-Bradley 1734-IB8S – POINT I/O digital input module

The Allen-Bradley 1734-IB8S is an 8-point sinking digital input module used in POINT I/O distributed I/O systems. It provides discrete input channels for monitoring field devices such as sensors, switches and proximity detectors. The module is designed for operation with a 24 V DC supply and communicates with the POINT I/O backplane for integration with PLC control systems.

Each input channel is a sinking type, suitable for sourcing devices and compatible with standard industrial 24 V sensors. The module supports status indication via front-panel LEDs, which provide real-time channel state feedback. Mounting is accomplished through the POINT I/O terminal base infrastructure, enabling orderly field wiring and serviceability.

Technical specifications:
• Module type: POINT I/O digital input
• Number of channels: 8 sinking inputs
• Input type: sinking (NPN)
• Supply voltage: 24 V DC
• Nominal current: per module current limited by backplane and system design
• Logic voltage range: 19.2–28.8 V DC
• Response time: typical for discrete inputs in POINT I/O architecture
• Mounting: via POINT I/O terminal base
• Operating temperature range: industrial standard
• Diagnostics: status LEDs for each channel

Key features and benefits:
• 8-point digital input module for distributed I/O
• Sinking input type for compatibility with sourcing field devices
• 24 V DC operation for industrial environments
• Point-level diagnostics via LED indicators
• Integration with POINT I/O backplane and PLC systems
• Designed for control cabinets and remote I/O panels

Typical applications:
• Discrete sensor monitoring
• Machine status inputs
• Limit switch and safety input integration
• Distributed control architectures
• Factory and process automation systems

About the manufacturer:
Allen-Bradley, a brand of Rockwell Automation, is a global provider of industrial automation hardware and distributed I/O systems used in manufacturing and process control applications.