Allen-Bradley 1756-IF16 ControlLogix 16-Channel Non-Isolated Analog Input Module

Product Description

The 1756-IF16 is a high-density analog input module designed for the Allen-Bradley ControlLogix platform. This module provides 16 single-ended or 8 differential inputs, allowing for precise data acquisition from a variety of industrial sensors. As a non-isolated module, it offers a cost-effective solution for high-speed analog signal processing within a synchronized ControlLogix chassis.

Engineered for versatility, the 1756-IF16 (Ser A/B) supports multiple voltage and current ranges, which are software-configurable per channel. It features advanced digital filtering and real-time sampling capabilities, ensuring high-accuracy conversion for demanding process control applications such as temperature monitoring, pressure regulation, and flow analysis.

Detailed Technical Specifications

• Model Number: 1756-IF16

• Brand: Allen-Bradley / Rockwell Automation

• Module Type: Analog Input (Voltage/Current)

• Inputs: 16 Single-Ended, 8 Differential, or 2 High-Speed Differential

• Resolution: 16-bit

• Voltage Ranges: ±10V, 0–10V, 0–5V, 1–5V

• Current Ranges: 4–20 mA, 0–20 mA (using 249 Ω precision resistor)

• Backplane Current: 150 mA at 5.1V DC; 120 mA at 24V DC

• Power Dissipation: 2.3 Watts (Voltage); 3.3 Watts (Current)

• Sampling Rate: 12 ms to 488 ms (RPI dependent)

• Removable Terminal Block (RTB): 1756-TBCH or 1756-TBSH (Sold separately)

• Calibration: Factory calibrated; supports user-defined field calibration

• Operating Temperature: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)

• Weight: 0.25 kg (0.55 lbs)

Industrial Applications

The 1756-IF16 is widely utilized in heavy industrial environments, including water treatment facilities, chemical processing plants, and automotive assembly lines. It serves as the primary interface for field instruments, translating analog physical variables into digital data for the ControlLogix processor to execute complex PID loops and safety interlocks.

Professional FAQ

• Does this module require a specific Terminal Block?

  Yes, the 1756-IF16 requires a 36-pin Removable Terminal Block (RTB), such as the 1756-TBCH (cage clamp) or 1756-TBSH (spring clamp), to interface with field wiring.

• Can I mix voltage and current signals on the same module?

  Yes, each channel is independently configurable via Studio 5000 software, allowing you to mix different signal types across the 16 available inputs.