Description
Allen‑Bradley 1756‑IF16 – ControlLogix 16‑Point Analog Input Module
Product Overview
The 1756‑IF16 is a high‑density analog input module for Allen‑Bradley ControlLogix platform, designed to convert field voltage and current analog signals into digital data for Logix controllers. It supports multiple wiring modes including single‑ended and differential input, delivers high‑precision sigma‑delta signal conversion, and provides comprehensive channel‑level diagnostics for open‑loop and fault detection. Built‑in reinforced isolation between field side and backplane effectively suppresses ground‑loop interference. The Allen‑Bradley 1756‑IF16 offers stable analog signal acquisition for process monitoring, pressure, flow and temperature measurement across diverse industrial automation sites.
Technical Specifications
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Brand: Allen‑Bradley (Rockwell Automation)
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Model:1756‑IF16
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Warranty: One Year
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Condition: 100% New & Original
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Product Type: ControlLogix Analog Input Module
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Channel Count: 16‑point analog input; configurable as 16 single‑ended / 8 differential channels
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Input Ranges: ±10.25 V, 0‑10.25 V, 0‑5.125 V, 0‑20.5 mA
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Resolution: 16‑bit high‑resolution sigma‑delta ADC conversion
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Accuracy: 0.05 % of range for voltage; 0.15 % of range for current at 25℃
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Isolation: Reinforced 250 V continuous isolation between inputs and backplane; no inter‑channel isolation
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Data Format: Integer 2‑s complement or IEEE 32‑bit floating‑point format
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Backplane Load: 225 mA @ 5.1 VDC, module power supplied via ControlLogix chassis backplane
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Diagnostics: On‑board open‑circuit detection, over‑range alarm, module health LED indicators
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Terminal: 36‑pin RTB removable terminal block interface for convenient field wiring
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Operating Temperature: 0 °C to +60 °C, suitable for standard industrial cabinet environments
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Compatibility: Fits standard 1756 ControlLogix chassis, works with Logix55xx series controllers
Application Scenarios
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Process Plant Measurement & Control: The 1756‑IF16 module collects analog signals from pressure transmitters, flow sensors and temperature transmitters in petrochemical, chemical and water‑treatment plants. It converts field analog readings into digital values for ControlLogix controllers, supporting closed‑loop process regulation and real‑time condition monitoring.
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Manufacturing & Heavy‑Industry Automation: Widely deployed in metallurgy, building‑material and machinery‑processing automation systems. The Allen‑Bradley 1756‑IF16 acquires analog data from on‑site transducers, ensures stable measurement under complex electromagnetic interference, and supports precise production‑process parameter control.
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Legacy System Upgrade & Expansion: Perfect for expanding existing ControlLogix‑based automation systems. High‑density 16‑channel design reduces slot usage inside cabinet, simplifies I/O expansion and lowers overall hardware investment for renovation projects.
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