Product Details
Overview
The Allen-Bradley 1738-IE4CM12 is a high-precision 4-channel analog input module from the ArmorPoint series. Designed for 24V DC systems, it provides accurate signal acquisition for industrial control and automation applications. Its advanced filtering, notch, and rejection capabilities make it ideal for measuring 4–20 mA or 0–20 mA analog signals with minimal noise interference.
Key Features
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Channels: 4 single-ended, non-isolated analog inputs
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Input Voltage: 24V DC nominal
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Signal Compatibility: Supports standard 4–20 mA and 0–20 mA currents
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High Accuracy: ±0.1% full-scale at 25°C
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Stability: 30 ppm/°C current input drift
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Digital Filtering: Configurable 0–10,000 ms (default 0 ms)
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Noise Rejection: 120 dB common-mode, -60 dB normal-mode
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Conversion Type: Sigma-Delta analog-to-digital conversion
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Input Impedance: 60 Ω
Notch Filter Options
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60 Hz (default): 15.7 Hz bandwidth
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50 Hz: 13.1 Hz
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100 Hz: 26.2 Hz
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120 Hz: 31.4 Hz
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200 Hz: 52.4 Hz
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240 Hz: 62.9 Hz
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300 Hz: 78.6 Hz
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400 Hz: 104.8 Hz
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480 Hz: 125.7 Hz
Technical Specifications
Manufacturer: Allen-Bradley
Brand: Allen-Bradley
Part Number: 1738-IE4CM12
Product Type: ArmorPoint 4-Channel Analog Input Module
Electrical
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Input Points: 4
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Input Type: Single-ended, non-isolated
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Accuracy: ±0.1% FS @ 25°C
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Accuracy Drift: 30 ppm/°C
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Conversion Type: Sigma-Delta
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Input Impedance: 60 Ω
Filter & Rejection
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Digital Filter: 0–10,000 ms
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Common Mode Rejection: 120 dB
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Normal Mode Rejection: -60 dB
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Notch Frequencies: 50–480 Hz
Environmental & Physical
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Operating Voltage: 24V DC
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Mounting: ArmorPoint compatible
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Weight: Approx. 0.2–0.3 kg (depending on configuration)
Applications
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Process control systems requiring precise analog measurements
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Monitoring 4–20 mA current loops in distributed I/O networks
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Environmental or utility control systems with noise suppression requirements
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Industrial automation projects where signal integrity is critical
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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Sequencing Induction Motor Control with PLC Logic: Best Practices
In modern industrial automation, controlling a group of induction motors requires precision and safety. Uncontrolled simultaneous startup of multiple large motors often causes significant voltage dips, potentially triggering protective trips. Therefore, implementing a sequential startup and shutdown strategy is essential. This approach minimizes inrush current and ensures the system operates within established power constraints. A robust PLC program serves as the ideal engine for orchestrating these sequences.
Mastering PLC Programming: Best Practices for Robust Industrial Automation
Writing clean PLC code requires discipline, especially regarding memory management. Avoid overusing SET and RESET instructions, as they often complicate debugging. If multiple rungs control the same bit, troubleshooting becomes a nightmare. Instead, focus on energizing a bit in only one location. If your logic requires complex conditions, use branches within a single rung. This approach keeps your code readable, maintainable, and significantly easier to audit during downtime.