Product Details
Overview
The Allen-Bradley 1771-IFM is a high-precision Fast Millivolt Input Module designed for the 1771 I/O chassis. It measures low-level differential signals with excellent accuracy, making it ideal for applications that require reliable millivolt-level readings. This module delivers stable and repeatable data transfer for critical industrial automation systems.
Technical Specifications
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Model Number: 1771-IFM
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Brand / Series: Allen-Bradley 1771 I/O
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Module Type: Fast Millivolt Input Module
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Number of Inputs: 8 differential low-level inputs
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Input Voltage Range: 0–50 mV
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Resolution: 12-bit binary
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Accuracy: 0.1% of range at 25°C plus 1 LSB
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Repeatability: ±1 LSB
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Isolation Voltage: 1500V transient
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Overvoltage Protection: 32V maximum
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Input Impedance: 1 MΩ
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Maximum Input Voltage: +10V
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Common Mode Rejection: 100 dB DC to 60 Hz
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Backplane Current: 0.75 A @ +5V
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Output Type: BCD or unscaled binary (0000–4095 for BCD, 32767 for binary)
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Module Location: Fits 1771 I/O chassis, 1 slot
Key Features
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High-Precision Measurement: Ideal for low-level differential signal detection.
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Reliable Data Output: Configurable BCD or binary output ensures seamless processor integration.
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Robust Protection: Overvoltage and isolation protection safeguard both module and system.
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Compact Installation: Single-slot design saves space in standard 1771 I/O chassis.
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Industrial Durability: Built for long-term performance in harsh factory environments.
Applications
The 1771-IFM module is suitable for:
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Measuring precise sensor signals in process control
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High-accuracy millivolt data acquisition
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Temperature and strain gauge measurement systems
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SCADA and machine monitoring networks
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Industrial laboratory instrumentation
Similar Models
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1771-IFM2 – Extended input range and higher channel count for large-scale applications.
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1771-IFM – Standard 8-channel fast millivolt input module for precise differential measurements.
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1771-IFC – Isolated current input module for analog signal acquisition.
FAQ
Q: How many input channels does the 1771-IFM provide?
A: It has 8 differential millivolt input channels.
Q: Can it handle voltages higher than 50 mV?
A: Inputs above 50 mV can be applied up to +10V for protection, but optimal accuracy is within 0–50 mV.
Q: What output formats are supported?
A: BCD or unscaled binary, depending on processor configuration.
Q: Is this module compatible with the 1771 I/O chassis?
A: Yes, it occupies one slot in a standard 1771 I/O chassis.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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