Allen-Bradley | 1756-IR12 | ControlLogix

Product Description: Allen-Bradley 1756-IR12

The Allen-Bradley 1756-IR12 is a 12-channel RTD (Resistance Temperature Detector) analog input module designed for use with the ControlLogix system. It is engineered to measure resistance-based temperature signals, supporting a variety of RTD types. The module is ideal for industrial applications requiring accurate and reliable temperature monitoring. Each input channel is individually configurable and offers high- resolution readings, enabling precise control and diagnostics in automated systems.

Key Features

• 12 high-resolution RTD input channels
• Supports 2-wire and 3-wire RTDs
• Compatible with RTD types: Pt100, Pt1000, Ni100, and others
• Individually configurable channels
• Open-circuit detection and diagnostics
• Input filtering for noise reduction
• No external power supply required for sensors
• Requires 1756 chassis and power supply
• Supports integration with Studio 5000 Logix Designer software

Technical Specifications

• Number of Channels: 12
• Input Types: RTD (Pt100, Pt1000, Ni100, etc.)
• Input Resistance Range: Up to 430 ohms
• Resolution: 16-bit (nominal)
• Accuracy: ±0.1% of full scale (depending on sensor and wiring configuration)
• Wire Support: 2-wire and 3-wire
• Update Rate: Programmable
• Isolation: 250V RMS channel-to-backplane
• Operating Temperature: 0°C to 60°C
• Storage Temperature: -40°C to 85°C
• Mounting: 1756 ControlLogix chassis
• Certifications: UL, CE, CSA, ATEX, IECEx

Application Areas

• Precision temperature monitoring
• Batch and continuous process control
• HVAC and thermal management systems
• Food and beverage manufacturing
• Environmental monitoring
• Machine automation requiring multi-zone RTD inputs

Advantages

• High-density RTD input solution in a single module
• Flexible wiring configurations for different RTD types
• Reduces control panel space requirements
• Simplifies integration into large automation platforms
• Enhanced diagnostic and monitoring capabilities for reliable operation