1756-IF16A

Overview of Allen-Bradley 1756-IF16 ControlLogix 16-Channel Analog Input Module

The Allen-Bradley 1756-IF16 is a ControlLogix analog input module providing flexible signal input configurations with 16 single-ended, 8 differential, or 4 high-speed differential input channels. This module supports voltage and current inputs including ±10V, 0-10V, 0-5V, and 0-20 mA ranges. It features high-resolution 16-bit sigma-delta analog-to-digital conversion and delivers precise measurement performance with built-in diagnostics.

Key Features of 1756-IF16

• Input types: 16 single-ended, 8 differential, or 4 high-speed differential channels.
• Supported analog input ranges: ±10 V, 0-10 V, 0-5 V, and 0-20 mA.
• High resolution: Up to 320 µV/count for ±10.25 V reference, 16-bit ADC.
• Data formats include integer mode (two's complement) and IEEE 32-bit floating point.
• Scan times vary: 16-488 ms for single-ended, 8-244 ms for differential, 4-122 ms for high-speed differential.
• Removable terminal blocks (1756-TBCH or 1756-TBS6H) for flexible wiring.
• Power dissipation: 2.3 W (voltage inputs) to 3.9 W (current inputs).
• Operating temperature range: 0 to 60 °C (32 to 140 °F).
• Built-in diagnostics: Over-range/under-range detection, signal scaling, and data timestamping.
• Module isolation: Common mode noise rejection preferred with differential wiring.

Technical Specifications

Applications / Use Cases

The 1756-IF16 module is well-suited for industrial process control, manufacturing automation, and monitoring systems where high accuracy and flexible signal configurations are required. It enables precise control of actuators and processes based on reliable analog input measurements.