Allen-Bradley 1756-IF6I ControlLogix 6 Point Isolated A/I Module

Description 

The Allen-Bradley 1756-IF6I is a ControlLogix analog input module with six individually isolated channels. It accepts voltage and current inputs across multiple ranges, offering 16-bit resolution for high-accuracy data acquisition.

Technical Specifications 

Information About 1756-IF6I

The 1756-IF6I is part of the Allen-Bradley ControlLogix series, designed for precision analog signal monitoring in industrial automation systems. It supports six isolated channels configurable for ±10.5V, 0–10.5V, 0–5.25V, or 0–21 mA signals, with selectable resolution down to 0.34 µA/bit for current and 86 µV/bit for voltage ranges. The module employs a sigma-delta conversion method and allows data formatting in integer (left-justified, 2’s complement) or IEEE 32-bit floating-point formats. It integrates advanced features such as under/over-range detection, wire-off detection, rate alarms, and configurable process alarms. With real-time sampling (RTS) and requested packet interval (RPI) settings, it ensures timely and accurate data multicast to the ControlLogix system. The 1756-IF6I requires a 1756-TBNH or 1756-TBSH removable terminal block (RTB) for wiring and draws 250 mA at 5V DC and 100 mA at 24V DC, dissipating up to 4.3 W. Designed with digital and notch filtering, it improves signal accuracy by minimizing transient and noise interference, making it well-suited for demanding analog measurement applications.

Key Features:

• Input capacity: Six individually isolated analog inputs configurable for voltage or current signals.
• Signal ranges: Supports ±10.5V, 0–10.5V, 0–5.25V, and 0–21 mA inputs for flexible integration.
• Resolution: 16-bit resolution with precision down to 86 µV/bit for voltage and 0.34 µA/bit for current.
• Conversion: Sigma-delta conversion method for stable and accurate signal processing.
• Data format: Supports integer (2’s complement) and IEEE 32-bit floating-point modes.
• Diagnostics: Includes under/over-range detection, wire-off detection, rate alarms, and process alarms.
• Filtering: Features notch and digital filters to minimize input noise and stabilize measurements.
• Sampling: Real-time sampling (RTS) and requested packet interval (RPI) settings optimize data flow.
• Wiring: Requires 1756-TBNH or 1756-TBSH removable terminal block for field connections.
• Power draw: Consumes 250 mA at 5V DC and 100 mA at 24V DC, with max 4.3 W dissipation.

The 1756-IF6I delivers the reliability and precision required for high-performance analog signal acquisition in ControlLogix automation systems.

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.