1756-IF8H Allen-Bradley

Series#: AllenBradley

Product Details

1756-IF8H Allen-Bradley ControlLogix High-Speed Analog Input Module – engineered for precision monitoring in demanding industrial environments.
8-channel, differential analog input module with 16-bit resolution, supporting voltage and current signals (0-10V, ±10V, 0-20mA, 4-20mA).
Integrated high-speed sampling up to 250 Hz per channel, ideal for real-time process control and data acquisition.
Hot-swappable under ControlLogix chassis (1756-A7/A10/A13/A17) with redundant power and communication support.
Built-in channel-to-channel isolation (500V DC) and diagnostic LEDs for quick fault detection and system uptime.
Seamless integration with RSLogix 5000/Studio 5000 environment, offering flexible scaling and alarm configuration.
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Specification

The 1756-IF8H Allen-Bradley ControlLogix High-Speed Analog Input Module is a cornerstone component for advanced industrial automation systems requiring fast and accurate analog signal acquisition. Designed to interface with a wide range of field devices such as pressure transmitters, flow meters, and temperature sensors, this module delivers exceptional performance in harsh factory floor conditions. With its 8 differential inputs, high-speed sampling capability, and robust isolation features, the 1756-IF8H ensures reliable data integrity and system stability, even in electrically noisy environments. It supports both current and voltage inputs, making it versatile for diverse process control applications. The module is fully compatible with ControlLogix chassis and integrates natively with Rockwell Automation's Studio 5000 environment, enabling straightforward configuration, scaling, and diagnostics. For engineers demanding precise and responsive analog measurement, the 1756-IF8H represents a trusted, high-performance solution.

Parameter	Specification
Product Type	ControlLogix High-Speed Analog Input Module
Model Number	1756-IF8H
Manufacturer	Allen-Bradley / Rockwell Automation
Number of Input Channels	8 differential inputs
Input Signal Types	Voltage: 0-10V, ±10V; Current: 0-20mA, 4-20mA
Resolution	16 bits (including sign bit)
Maximum Sampling Rate	250 Hz per channel
Accuracy (at 25°C)	±0.05% of full scale (typical)
Isolation	Channel-to-channel isolation: 500V DC; Chassis isolation: 1500V DC
Input Impedance	Voltage mode: > 1 MΩ; Current mode: 250 Ω
Common Mode Rejection Ratio (CMRR)	> 100 dB at 60 Hz
Normal Mode Rejection Ratio (NMRR)	> 60 dB at 60 Hz
Update Time	4 ms for all channels (typical)
Power Consumption	5.5W from backplane (5V DC Standard Models 1.1A 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
Enclosure Type	Open style, suitable for panel mounting
LED Indicators	Module Status (OK), Channel Status (per channel), Fault
Communication	ControlBus backplane (ControlLogix chassis)
Compatible Chassis	1756-A7, 1756-A10, 1756-A13, 1756-A17, 1756-A4 (all standard ControlLogix)
Software Support	RSLogix 5000 (v16+), Studio 5000 Logix Designer
Dimensions (H x W x D)	144 mm x 35 mm x 144 mm (5.67 in x 1.38 in x 5.67 in)
Weight	Approximately 0.4 kg (0.88 lb)
Certifications	UL, CE, CSA, ATEX (Zone 2), IECEx, TÜV (functional safety pending)
Warranty	Standard 2-year manufacturer warranty