1756-IR12 | Allen-Bradley ControlLogix RTD Input Module

Allen-Bradley 1756-IR12 ControlLogix RTD Input Module – High-Precision 12-Channel Temperature Sensing

Description

The Allen-Bradley 1756-IR12 is a high-resolution 24-bit analog input module designed for 3-wire RTD temperature sensing. Part of the ControlLogix series, this module offers 12 non-isolated channels with configurable input ranges (1-500Ω to 8-4000Ω). Ideal for industrial automation, it features wire-off detection, over-range alerts, and auto-calibration. Compatible with platinum, nickel, and copper RTDs, it ensures accurate data conversion via Sigma-Delta technology.

Technical Data

• Brand: Allen-Bradley / Rockwell Automation
• Model: 1756-IR12 (Series A/B, suffix details on request)
• Input Type: 3-wire RTD
• Channels: 12 non-isolated
• Resolution: 24-bit
• Ranges: 1-500Ω / 2-1000Ω / 4-2000Ω / 8-4000Ω
• Accuracy: ±0.1% (typical)
• Data Format: IEEE 32-bit floating point
• Isolation: 250V continuous
• Power: 5.1V DC (200mA) / 24V DC (70mA)
• Operating Temp: 0°C to 60°C (32°F to 140°F)

Installation & Compatibility

Mounts on ControlLogix chassis. Compatible with terminal blocks like 1756-TBCH and 1756-TBS6H. Supports software-configurable keying for secure setup. For wiring diagrams, download the manual here.

Certifications & Packaging

• Safety: Reinforced insulation, T4 rated
• Shipping: FedEx, UPS, or DHL (global express)
• Package Includes: 1756-IR12 module, datasheet, warranty card
• Warranty: 12 months from delivery date