Product Overview

The Allen-Bradley 1734-IE2C provides high-resolution analog signal acquisition for distributed control architectures. This module converts analog current signals into digital values for PLC processing, supporting both 0–20 mA and 4–20 mA standard loops. We provide this unit as 100% Brand New and Original, ensuring the factory-grade precision required for sensitive process variables like pressure, flow, and temperature.

Technical Specifications

Engineering Advantages

• Precision Delta-Sigma Conversion: The 1734-IE2C utilizes Delta-Sigma conversion technology to filter out high-frequency noise. This ensures stable, accurate data even in electrically noisy industrial environments.

• High-Density Modular Scalability: The slim POINT I/O form factor allows engineers to add analog capacity without expanding enclosure dimensions. Each module snaps onto a 1734-TB base, minimizing wiring complexity.

• Superior Interference Rejection: With a 120 dB common mode rejection ratio, this module maintains signal integrity by effectively ignoring ground loops and common-mode noise that typically plague long-distance analog cable runs.

• Software-Configurable Filtering: Engineers can adjust the digital filter notch frequency via the control logic to match the specific dynamics of the process, optimizing the trade-off between response time and noise suppression.

• Simplified Maintenance: The module supports Removal and Insertion Under Power (RIUP), allowing technicians to replace a faulty unit without halting the entire I/O rack or disrupting production.

FAQs

How do I configure the module for 4-20 mA vs. 0-20 mA?

You set the input range through the module configuration profile in Studio 5000 or RSLogix 5000. The module hardware supports both ranges; the software determines the scaling and low-signal fault thresholds.

Does the 1734-IE2C require external power?

Yes. While the logic side draws power from the POINTBus, the analog loops typically require 24V DC field power supplied via a 1734-FPD (Field Power Distributor) or 1734-EP24DC (Expansion Power Supply) depending on your rack configuration.

What is the significance of 16-bit resolution in this module?

The 16-bit resolution provides over 65,000 distinct levels across the current range. This allows the system to detect minute changes in sensor data, which is critical for precise chemical dosing, high-accuracy pressure monitoring, and fine-tuned PID control loops.

Can I use this module with a 2-wire transmitter?

Yes. You can wire the 1734-IE2C to 2-wire, 3-wire, or 4-wire transmitters. For 2-wire sensors, ensure you loop the field power through the sensor and into the module input terminal.