Allen-Bradley 1756-IF6I ControlLogix Analog Input Module

Overview
The 1756-IF6I is a ControlLogix analog input module featuring six (6) individually isolated input channels. It supports both current and voltage signals, making it compatible with a wide range of industrial analog devices, including 2-wire and 4-wire transmitters. The module is designed for precision and reliability with a 16-bit resolution for accurate data acquisition.

Key Features

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Series: ControlLogix

• Module Type: Analog Input

• Inputs: 6 points, isolated

• Input Signal Range: ±10.5 V, 0–10.5 V, 0–5.25 V, 0–21 mA

• Input Resolution:

• ±10.5 V: 343 µV/bit

• 0–10.5 V: 171 µV/bit

• 0–5.25 V: 86 µV/bit

• 0–21 mA: 0.34 µA/bit

• Conversion Method: Sigma-Delta

• Data Format: Integer mode (left justified, 2’s complement), IEEE 32-bit floating point

• Backplane Current: 250 mA @ 5 V, 100 mA @ 24 V

• Power Dissipation (Max): Voltage: 3.7 W, Current: 4.3 W

• Removable Terminal Blocks: 1756-TBNH, 1756-TBSH

• Product Lifecycle Status: Discontinued / Obsolete

• UPC: 10612598164643

• UNSPSC: 32151705

Description
The 1756-IF6I is an isolated analog input module for the ControlLogix system. It provides six (6) individually isolated voltage or current inputs. Before wiring input signals, the module requires either the 1756-TBNH or 1756-TBSH removable terminal block (RTB).

Each channel can be configured for one of the supported input ranges. The module supports two data formats: integer mode and IEEE 32-bit floating point. Precision is ensured with 16-bit resolution, which varies depending on the input range. The under-range/over-range detection feature activates when input signals exceed the operational limits.

The 1756-IF6I is suitable for applications requiring precise analog measurement and high isolation between input channels, ensuring reliable performance in industrial automation environments.