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Allen Bradley ControlLogix 1756-IF6I

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1756-IF6I

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The 1756-IF6I is an analog input module from Allen Bradley's ControlLogix series, featuring six inputs. It supports both voltage and current input types and includes isolation for enhanced signal integrity.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1756-IF6I

ManufacturerAllen Bradley
Product TypeAnalog Input Module
Product LineControlLogix
Part Number1756-IF6I
Weight1.00 lbs (0.45 kg)
Number of Inputs6 Inputs
Input TypeVoltage or Current
Isolated InputsYes
Input Voltage Options-10.5 to 10.5V, 0 to 10.5V, 0 to 5.25V
Input Current Option0 to 21 mA
Current Draw at 5.1V DC250 mA
Current Draw at 24V DC100 mA
Total Backplane Power3.7 Watts
Max. Voltage Input Power Dissipation3.7 Watts
Max. Current Input Power Dissipation4.3 Watts
Voltage Input ImpedanceMore than 10 Megaohms
Current Input Impedance249 Ohms
Module Conversion MethodSigma-Delta Method
Slot Width1 Slot
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The 1756-IF6I from Allen Bradley is designed as an analog input module within the ControlLogix series. This unit is built to handle six distinct inputs, capable of processing either voltage or current types with isolation features for better signal clarity. For voltage input, the module supports a range of options including -10.5 to 10.5 volts, 0 to 10.5 volts, and 0 to 5.25 volts. When configured for current, it can accommodate values up to 21 mA.

In regards to efficiency, the module draws 250 mA from a 5.1V DC supply and 100 mA from a 24V DC source. It maintains a total backplane power draw of 3.7 watts, while ensuring that power dissipation does not exceed 3.7 watts for voltage inputs and 4.3 watts for current inputs.

The input impedances are notable, with the voltage inputs providing more than 10 Megaohms and the current input having a resistance of 249 Ohms. The module utilizes the sigma-delta conversion method for accurate signal processing, making it suitable for various applications that require precise analog measurements. Additionally, it occupies a single slot width for integration within ControlLogix racks, providing a compact solution for modern automation systems.

Revision Part #Also known as
1756-IF6I Ser A1756-IF6I/A, Series A, Rev A
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