1756-IF8 Allen-Bradley

Series#: AllenBradley

Product Details

Model: 1756-IF8 – High-density 8-channel analog input module for Allen-Bradley ControlLogix systems.
Accepts ±10V, ±5V, 0-10V, 0-5V, 0-20mA, and 4-20mA signal ranges per channel.
16-bit resolution with selectable input filtering and real-time engineering unit scaling.
Hot-swappable under powered backplane – no system downtime required for replacement.
Built-in open-wire detection and over-range diagnostics for process reliability.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The 1756-IF8 is a high-performance analog input module engineered for the Allen-Bradley ControlLogix platform, designed to deliver precise signal acquisition in demanding industrial automation environments. This 8-channel module supports both voltage and current inputs, making it ideal for process control, batch monitoring, and data acquisition applications. With 16-bit resolution and per-channel configuration, the 1756-IF8 ensures accurate measurement of temperature, pressure, flow, and level signals from field transmitters. Its robust diagnostics, including open-wire detection and over-range alarms, enhance system uptime. The module is fully compatible with 1756 backplanes and can be installed or replaced without powering down the chassis, supporting true hot-swappable operation.

Parameter	Specification
Product Family	Allen-Bradley ControlLogix
Model Number	1756-IF8
Module Type	Analog Input Module
Number of Input Channels	8 differential or 16 single-ended (software-selectable)
Input Signal Ranges	±10V, ±5V, 0-10V, 0-5V, 0-20mA, 4-20mA
Resolution	16-bit (including sign bit)
Conversion Rate	250 µs per channel (typical)
Input Impedance	Voltage: >1 MΩ; Current: 250 Ω
Accuracy (at 25°C)	±0.05% of full scale (typical)
Common Mode Rejection Ratio (CMRR)	>90 dB at 60 Hz
Input Filter	Selectable: 10 Hz, 100 Hz, 1 kHz, or disabled
Diagnostics	Open-wire detection, over-range, under-range, module fault
Backplane Current (5V)	200 mA maximum
Backplane Current (24V)	50 mA maximum
Power Dissipation	1.5 W typical
Operating Temperature	0°C to +60°C (32°F to +140°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Relative Humidity	5% to 95% non-condensing
Isolation	500V AC/DC between input and backplane
Hot Swappable	Yes, under powered backplane
LED Indicators	Module status, channel status, fault
Weight	0.45 kg (approx.)
Dimensions (H x W x D)	144 x 35 x 119 mm
Certifications	CE, UL, CSA, ATEX (hazardous location)