Allen-Bradley | 1734-IR2 | POINT I/O

Product Description: Allen-Bradley 1734-IR2

The Allen-Bradley 1734-IR2 is a 2-channel analog input module designed for resistance temperature detector (RTD) signal acquisition in the POINT I/O system. It supports multiple RTD sensor types and provides accurate temperature monitoring with high-resolution conversion and noise immunity. This module is ideal for distributed temperature sensing applications in compact industrial automation setups.

Key Features

• 2 input channels for RTD temperature sensors
• Supports 2-wire, 3-wire, and 4-wire RTD configurations
• Compatible with RTD types including Pt100, Pt200, Pt500, Pt1000, Ni100, and Ni120
• High-resolution 16-bit input for precise measurements
• Per-channel input status diagnostics
• Compact design ideal for distributed control panels
• Integrates seamlessly with Logix controllers via POINT I/O backplane

Technical Specifications

• Number of Inputs: 2
• Supported RTD Types: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120
• Input Configuration: 2-wire, 3-wire, or 4-wire RTD
• Resolution: 16 bits
• Accuracy: ±0.5°C (typical, depending on sensor and configuration)
• Input Impedance: >1 MΩ
• Isolation Voltage: 50V (channel 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 using standard POINT I/O terminal base (e.g., 1734-TB or 1734-TOP)

Application Areas

• Industrial temperature monitoring with RTDs
• Process control systems requiring precision thermal input
• Food, chemical, and pharmaceutical manufacturing
• Environmental chambers and cleanroom HVAC
• Distributed I/O architectures in space-constrained systems

Advantages

• High-accuracy RTD measurement in a compact form
• Flexible support for multiple RTD types and wiring formats
• Channel diagnostics help detect sensor or wiring faults quickly
• Ideal for integrating temperature data into distributed Logix platforms
• DIN-rail design simplifies installation and system expansion