Allen-Bradley | 1734-IB8 | POINT I/O

Product Description: Allen-Bradley 1734-IB8

The Allen-Bradley 1734-IB8 is an 8-channel digital input module in the POINT I/O family, designed to receive 24V DC signals from sourcing (PNP) field devices. It provides reliable signal acquisition in compact distributed I/O systems and is ideal for applications requiring space- saving, flexible, and high-performance digital input capability.

Key Features

• 8 DC sinking input channels
• Compatible with 24V DC sourcing (PNP) devices
• Solid-state input circuitry ensures durability and reliability
• LED indicators for per-channel input status
• Optical isolation between field inputs and POINTBus backplane
• Compact DIN rail-mounted form factor
• Fully compatible with all standard POINT I/O terminal bases

Technical Specifications

• Number of Inputs: 8
• Input Type: Sinking (PNP device compatible)
• Input Voltage Range: 10–28.8V DC (nominal 24V DC)
• On-State Voltage: ≥10V DC
• Off-State Voltage: ≤5V DC
• On-State Current: 2.0 mA minimum
• Off-State Current: ≤1.5 mA
• Isolation Voltage: 50V (field to system)
• Backplane Current Draw: 75 mA at 5V DC
• Operating Temperature: 0°C to 55°C
• Dimensions (HxWxD): approx. 75 x 12 x 55 mm
• Mounting: DIN rail with compatible terminal base (e.g., 1734-TB, 1734-TOP)

Application Areas

• Monitoring of sensors, switches, and pushbuttons
• Discrete signal acquisition in automation systems
• Machine and equipment control
• Packaging, conveying, and material handling systems
• Remote and distributed I/O panels

Advantages

• High-density I/O in a compact module
• Simple integration with sourcing field devices
• Optical isolation protects control system integrity
• Visual input status indication enhances troubleshooting
• Seamless compatibility with POINT I/O and Logix-based systems