1771-IFE Allen-Bradley PLC5 Analog Input Module 16-Channel

Allen-Bradley 1771-IFE Analog Input Module for PLC5 Systems

Key Technical Specifications

• Brand & Model: Allen-Bradley 1771-IFE analog input module.
• Input Channels: 16 single-ended or 8 differential (software‑selectable).
• Input Ranges: Voltage: 1‑5V, 0‑5V, -5‑+5V, -10‑+10V, 0‑10V DC; Current: 4‑20mA, 0‑20mA, -20‑+20mA.
• Resolution & Accuracy: 12‑bit binary (12 bits plus sign on bipolar); accuracy ±0.1% of full scale @ 25°C.
• Update Time: 18 ms for 8 differential inputs; 36 ms for 16 single‑ended inputs (without filtering).
• Data Formats: Natural binary or BCD scaling to ±9999.
• Backplane Current: 750 mA from 5V DC external supply.
• Isolation & Filtering: Optoelectrical isolation protects against transients; programmable digital filter reduces electrical noise.
• Signal Delays (typical): DC On 10 ms, DC Off 20 ms; AC Off 24 ms.
• Power Dissipation: 2.5 Watts max (8.52 BTU/hr).
• Mounting & Wiring: Rack mountable, 1 slot width; includes 1771-WG wiring arm.
• Keying Bands: Lower connector between pins 10‑12, upper between pins 24‑26 for correct installation.

Environmental & Performance Features

• Operates reliably in industrial environments with optoelectrical isolation against transients.
• Digital filtering cancels noise on signal wiring – add 2.12 ms for differential, 4.24 ms for single‑ended.
• Real‑time sampling regulates measurement time and reduces fluctuations.
• Scalable engineering units allow direct display of pressure, level, flow, temperature, viscosity, pH, vibration, and displacement.
• Fault response defaults to user configuration, providing predictable and safe system behaviour.

Frequently Asked Questions (FAQ)

• What is the difference between single‑ended and differential wiring on the 1771-IFE? Single‑ended mode gives you 16 inputs referenced to a common ground. Differential mode provides 8 inputs with better noise immunity for long cable runs or signals with different ground potentials.
• Can I mix voltage and current signals on the same module? Yes, you can configure each channel independently for any of the supported voltage or current ranges. This flexibility makes the 1771-IFE suitable for diverse field devices.
• How do I know if the module is running correctly? The front panel has a green RUN LED that illuminates when the module communicates with the PLC5. A red FAULT LED warns of configuration errors, loss of communication, or hardware issues.
• Does the module require an external power supply? No, it draws all necessary power (750 mA) from the backplane of the 1771 I/O chassis.
• What is the typical lead time for the 1771-IFE? We stock this item as new original surplus. We ship within 5 days after order confirmation via FedEx, UPS, or DHL.
• Can I return the module if it doesn’t fit my system? Yes, we accept returns within 30 days. The module must be in new, unused condition with original packaging.

Contact Information Inquiries: sales@nex-auto.com | +86 153 9242 9628

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