Allen-Bradley 1756-IF8 ControlLogix Analog Input Module
$123.00
$320.00
Description
Overview
The 1756-IF8 analog input module from Rockwell Automation Allen-Bradley is engineered for high-accuracy signal acquisition within the ControlLogix automation platform. Designed for demanding industrial process applications, this module supports both voltage and current analog signals with flexible channel configurations, enabling reliable integration into process control, monitoring, and data acquisition systems.
The module utilizes sigma-delta conversion technology to improve measurement stability and noise rejection, making it suitable for precision instrumentation and critical process environments.
Key Features
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Eight single-ended analog input channels
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Four differential analog input channels
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Two high-speed differential input channels
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Compatible with voltage and current analog signals
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Integrated real-time channel sampling
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Built-in diagnostic and alarming functions
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High-resolution sigma-delta A/D conversion
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Designed for ControlLogix chassis architecture
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Software-configurable signal ranges and filtering
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | 1756-IF8 |
| Brand | Allen-Bradley |
| Series | ControlLogix |
| Product Type | Analog Input Module |
| Input Channels | 8 Single-Ended / 4 Differential |
| High-Speed Inputs | 2 Differential Channels |
| Supported Current Range | 0–20 mA |
| Supported Voltage Ranges | -10 to +10V, 0–10V, 0–5V |
| A/D Conversion Method | Sigma-Delta |
| Input Impedance (Voltage Mode) | 1 MΩ |
| Input Impedance (Current Mode) | 249 Ω |
| Backplane Current @ 5.1V DC | 150 mA |
| Backplane Current @ 24V DC | 40 mA |
| Total Backplane Power | 1.73 W |
| Power Dissipation | 1.73 W (Voltage) / 2.33 W (Current) |
| Diagnostic Functions | Supported |
| Real-Time Sampling | Supported |
| Isolation | Channel-to-backplane isolated |
| Mounting | ControlLogix Chassis |
| Weight | 0.56 lbs |
Application Areas
The 1756-IF8 module is commonly deployed in industrial environments requiring precise analog signal processing and high system reliability, including:
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Process automation systems
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Water and wastewater treatment
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Oil and gas facilities
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Chemical processing plants
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Power generation systems
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Factory instrumentation monitoring
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Manufacturing process control
Operational Advantages
The module supports flexible signal conditioning for multiple sensor types, including transmitters, process instruments, and analog field devices. Differential input capability helps reduce electrical noise in long-distance signal transmission environments, while onboard diagnostics simplify troubleshooting and maintenance.
Real-time channel sampling improves responsiveness in applications requiring fast process feedback and accurate monitoring.
FAQ
What input signal types are supported by the 1756-IF8?
The module accepts both voltage and current analog signals, including 0–20 mA, 0–5V, 0–10V, and ±10V input ranges.
Can the module operate with differential inputs?
Yes. The module supports four standard differential channels and two high-speed differential channels for enhanced signal accuracy and faster acquisition.
Is the 1756-IF8 compatible with all ControlLogix chassis systems?
The module is designed for installation in standard Allen-Bradley ControlLogix chassis platforms.
Does the module provide onboard diagnostics?
Yes. Integrated alarming and diagnostic functions help detect abnormal signal conditions and simplify maintenance procedures.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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