Product Details
Product Overview
The Allen Bradley 1794-OE4XT serves as a high-performance analog output module within the FLEX™ I/O platform, specifically designed for extreme industrial environments. This "XT" (Extended Temperature) version provides four high-precision analog outputs, converting 12-bit digital values into analog signals to drive actuators, valves, and motor speed controllers. Its ruggedized design ensures stable signal conversion even in unconditioned control cabinets. We supply this module in 100% Brand New and Original condition, meeting the rigorous demands of heavy industry and remote outdoor installations.
Technical Specifications
The 1794-OE4XT provides precise signal modulation through the following technical parameters:
| Feature | Specification |
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Module Type | Analog Output (FLEX I/O) |
| Number of Outputs | 4 Channels |
| Resolution | 12-Bits |
| Operating Temperature | -20°C to 70°C (-4°F to 158°F) |
| External Power | 24V DC Nominal |
| Protection Rating | IP20 |
| Output Ranges | 0-20mA, 4-20mA, +/- 10V (Configuration dependent) |
| Weight | 0.20 lbs (0.09 kg) |
Engineering Advantages
The 1794-OE4XT addresses critical environmental and signal integrity challenges in distributed I/O architectures:
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Extended Thermal Tolerance: The "XT" designation signifies hardware-level resilience against thermal extremes. This module operates reliably between -20°C and 70°C, allowing for deployment in non-climate-controlled environments, such as oil field pumping stations or rooftop HVAC control panels.
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Granular Control Precision: The 12-bit digital-to-analog converter (DAC) translates digital instructions into subtle physical adjustments. This level of resolution allows for the fine-tuning of proportional valves and variable frequency drives (VFDs), optimizing process efficiency.
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High-Density DIN Rail Integration: The module utilizes the compact FLEX I/O footprint, minimizing cabinet space requirements. It snaps directly onto a 1794-TB3 or 1794-TBN terminal base, allowing for rapid assembly of high-density I/O racks without complex backplane wiring.
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Galvanic Isolation: Integrated circuitry isolates the field-side outputs from the logic-side backplane. This protects the central PLC processor from electrical noise and voltage transients common in industrial grounding systems.
FAQs
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What is the difference between the 1794-OE4 and the 1794-OE4XT?
The 1794-OE4XT features extended temperature components and specialized manufacturing processes that allow it to operate in a wider temperature range (-20 to 70°C) compared to the standard model (0 to 55°C).
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Does this module require an external 24V DC power supply?
Yes. You must provide 24V DC power to the terminal base to drive the analog output circuitry and the field devices. The module draws its logic power directly from the FLEX I/O backplane.
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Which terminal bases are compatible with the 1794-OE4XT?
This module typically mounts on 1794-TB2, 1794-TB3, or 1794-TBN terminal bases. For XT applications, ensure your selected terminal base and I/O adapter also support the extended temperature range.
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Is this a genuine, factory-new unit?
We guarantee that every 1794-OE4XT we ship is 100% Brand New and Original. The unit arrives in its original factory-sealed box, including authentic Allen Bradley serial numbers and manufacturer documentation.
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
Selecting the Right Cables for Industrial Automation: A Comprehensive Guide
Selecting the appropriate cabling infrastructure is critical for the success of any industrial automation project. Improper cable selection often leads to signal degradation, system instability, and costly downtime. As an automation engineer, I frequently see projects compromised by poor cabling choices in harsh industrial environments. This guide simplifies the complex landscape of cabling to help you make informed decisions for your PLC, DCS, and control systems.
Preventing Spurious Trips in Emergency Stop Systems: A Technical Guide
In industrial automation, the Emergency Stop (E-Stop) pushbutton is the ultimate safety line. However, relying on a single Normally-Closed (NC) contact can sometimes lead to unexpected spurious trips. As a control systems engineer, I have seen these nuisance trips halt entire production lines, causing significant downtime. Understanding why these components fail and how to implement robust architecture is essential for any reliable DCS or PLC-based safety system.
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.