Allen Bradley 1756-IF8H ControlLogix Analog Input Module – 8-Channel HART, 0–21mA / ±10V, 16–21 Bit Resolution

The Allen Bradley 1756-IF8H is a high-performance 8-channel analog input module for the ControlLogix platform, supporting both standard analog signals and advanced HART communication. Designed for precision measurement, it accepts 0–21 mA and ±10V differential inputs, delivering high-resolution data acquisition with 16 to 21-bit resolution depending on configuration.

This module is ideal for process automation environments requiring accurate analog sensing combined with the ability to extract smart field device diagnostics via HART. With a rugged, industrial-grade enclosure and ControlLogix plug-in compatibility, the 1756-IF8H supports demanding applications in oil & gas, chemical, water treatment, and manufacturing sectors.

Technical Specifications

Model: 1756-IF8H
Brand: Allen Bradley
Series: ControlLogix
Product Type: Analog Input Module with HART
Number of Inputs: 8 differential analog channels
Supported Signals: 0–21 mA, ±10V
Resolution: 16–21 bits (depending on mode)
HART Support: Yes (digital communication over analog loop)
Explosion Safety (Dust): None
Explosion Safety (Gas): None
Plug Connection Type: Plug-in terminal block
Dimensions (W x H x D): 38.1 × 300 × 111.25 mm

Electrical & Performance Details

• Analog Inputs: 8 differential channels
• Current Input Range: 0–21 mA
• Voltage Input Range: ±10V
• Input Types Supported: Current & Voltage
• Input Types Not Supported: RTD, Resistor, Thermocouple
• HART Protocol: Fully supported on all channels
• Resolution: 16-bit standard, up to 21-bit in advanced modes
• Module Function: High-accuracy acquisition for process applications
• Output Channels: None (input-only module)

Mechanical Specifications

• Width: 38.1 mm
• Height: 300 mm
• Depth: 111.25 mm
• Mounting: Standard ControlLogix chassis
• Connection Type: Plug-in terminal block
• Housing: Industrial-grade ControlLogix modular enclosure

Environmental & Application Suitability

• Typical Applications: Process control, chemical dosing, flow & pressure monitoring, smart transmitter integration
• HART Integration: Enables digital diagnostics, device status, secondary variables
• Sectors: Oil & Gas, Water Treatment, Manufacturing, Power Generation
• Installation Environment: Industrial control cabinets with ControlLogix chassis
• Safety Suitability: No ATEX/IECEx rating (non-explosion rated)

Compliance & Certifications

• UL / cUL Listed: Yes
• CE Marked: Yes
• RoHS Compliant: Yes
• ControlLogix System Certified: Yes

Key Features & Benefits

✅ 8-channel differential analog input for high-accuracy process measurement.

✅ Full HART support for smart transmitter diagnostics and advanced data.

✅ Wide input flexibility — 0–21 mA and ±10V signal compatibility.

✅ High-resolution acquisition up to 21 bits.

✅ Plug-in connection for fast installation and maintenance.

✅ Ideal for ControlLogix process skids and distributed I/O applications.

✅ Rugged construction suitable for harsh industrial environments.

📦 Order the Allen Bradley 1756-IF8H from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1756-IF8H prices, with fast UK & EU delivery and expert support for ControlLogix and process automation systems.

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Achieve high-precision process measurement with the Allen Bradley 1756-IF8H — HART-enabled analog input for advanced industrial automation, available now from Drive Outlet Megastore.