Product Overview

The Allen-Bradley 1734-OE2C provides precise analog signal generation for distributed industrial control systems. This module converts digital PLC data into proportional 0–20 mA or 4–20 mA current signals, primarily to drive control valves, variable speed drives, and other field actuators. We supply this unit as 100% Brand New and Original in Factory Packing, complete with a 12-month warranty to ensure total system integrity.

Technical Specifications

Engineering Advantages

• Precise Actuator Control: The 1734-OE2C offers 13-bit resolution and 0.1% accuracy, ensuring fine-tuned positioning for flow control valves and exact speed references for motor drives.

• Intelligent Diagnostics: Integrated red/green status indicators provide immediate feedback for module health, network connectivity, and individual channel status. This enables maintenance teams to identify open-loop faults or power losses without secondary testing tools.

• Modular Space Efficiency: The slim POINT I/O profile maximizes rail space. Engineers can deploy high-performance analog control in compact junction boxes near the process equipment, significantly reducing expensive copper cable runs.

• Fail-Safe Configuration: Through the Studio 5000 environment, users can program specific "Hold Last State" or "Go to Zero" behaviors for each channel. This ensures the process remains in a safe condition during a communication loss.

• Robust Load Handling: The module drives resistive loads up to 750 Ohms, providing the necessary overhead to overcome long-distance wire resistance in large industrial facilities.

FAQs

What terminal base and keyswitch position should I use for the 1734-OE2C?

This module requires a 1734-TB or 1734-TBS terminal base. You must set the mechanical keyswitch on the base to Position 4 before inserting the module to prevent damage from incompatible hardware.

Does this module require external 24V DC power?

Yes. While the communication logic draws power from the POINTBus, the analog output circuitry requires 24V DC field power. You must provide this via a 1734-FPD (Field Power Distributor) or 1734-EP24DC expansion power supply.

Can I mix 0-20 mA and 4-20 mA outputs on the same module?

Yes. You configure each of the two channels independently within the PLC software. This allows you to drive a 4-20 mA valve on Channel 0 and a 0-20 mA frequency drive reference on Channel 1 simultaneously.

What happens if the current loop is broken (Open Load)?

The 1734-OE2C features status indicators that will flash or change color to signal an output fault. You can also monitor diagnostic bits in your controller tags to trigger an alarm in the HMI when the module detects an open circuit.