Allen Bradley AB ControlLogix Analog Isolated Input Module 1756-IF6I /A

Allen-Bradley ControlLogix Analog Isolated Input Module 1756-IF6I /A

The Allen-Bradley 1756-IF6I is a six-channel isolated analog input module designed for the ControlLogix series. It offers precise and reliable analog signal processing, making it suitable for various industrial automation applications.

Key Features

• Individually Isolated Inputs: Each of the six input channels is individually isolated, ensuring signal integrity and reducing the risk of interference between channels.
• Versatile Input Ranges: Supports multiple input signal ranges, including ±10.5V, 0 to 10.5V, 0 to 5.25V, and 0 to 21 mA, accommodating a wide array of analog devices.
• High Resolution: Provides 16-bit resolution for accurate signal measurement, with specific resolutions such as 343 μV/bit for 10.5V inputs and 0.34 μA/bit for 0 to 21 mA inputs.
• Advanced Conversion Method: Utilizes a Sigma-Delta conversion method for precise analog-to-digital conversion.
• Configurable Data Formats: Supports both integer mode (left justified, 2’s complement) and IEEE 32-bit floating point data formats, offering flexibility in data representation.

Technical Specifications

• Input Impedance: Voltage inputs have an impedance greater than 10 MΩ, while current inputs have an impedance of 249 Ω.
• Overvoltage Protection: Voltage inputs are protected up to 120V AC/DC, and current inputs up to 8V AC/DC with onboard current resistor.
• Noise Rejection: Common mode noise rejection is 120 dB at 60 Hz and 100 dB at 50 Hz; normal mode noise rejection is 60 dB at 60 Hz.
• Power Requirements: Draws 250 mA at 5.1V and 100 mA at 24V from the backplane, with a total power dissipation of 3.7 W.
• Operating Temperature: Designed to operate within a temperature range of 0°C to 60°C.

Applications

The 1756-IF6I module is ideal for applications requiring precise analog input measurements, such as process control, manufacturing automation, and monitoring systems. Its isolated inputs and high resolution make it suitable for environments where signal accuracy and integrity are critical.

Compatibility

This module is compatible with Allen-Bradley’s ControlLogix series and requires a 20-pin removable terminal block (RTB), such as the 1756-TBNH or 1756-TBSH, for wiring connections.

For detailed technical information and installation guidelines, refer to the official Allen-Bradley documentation.