Product Details
Product Overview
The Allen Bradley 1797-ACNR15 functions as a high-performance communication interface for the FLEX Ex™ I/O platform. This adapter enables seamless data exchange between a ControlNet network and up to eight intrinsically safe (IS) I/O modules located in Zone 1 or Class I, Division 1 hazardous areas. We supply this unit as 100% Brand New and Original, featuring dual ControlNet BNC ports to provide physical media redundancy for critical process control loops in explosive atmospheres.
Technical Specifications
The 1797-ACNR15 operates with specific power and environmental ratings required for volatile industrial sites:
| Feature | Specification |
| I/O Capacity | Supports up to 8 Modules |
| Network Protocol | ControlNet V 1.5 |
| Communication Rate | 5 Mbps |
| Redundancy | Dual (2) BNC ControlNet Ports |
| Intrinsic Safety Rating | Class I Div 1 Groups A-D; Ex ib IIB/IIC T4 |
| Operating Temperature | -20 to 70 °C (-4 to 158 °F) |
| Power Consumption | 8.5 W |
| Output Power | 5.4V DC |
| Vibration Resistance | 2 g @ 10–500 Hz |
| Wire Size (Max) | 3.31 mm² (12 AWG) |
| Status Indicators | Comm A/B, Module Status, Power (LED) |
Engineering Advantages
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Intrinsically Safe Architecture: The 1797-ACNR15 eliminates the need for bulky explosion-proof enclosures or long cable runs from safe zones. By mounting directly in Class I Division 1 areas, it reduces installation costs and simplifies field-side wiring.
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Fault-Tolerant Networking: Dual ControlNet ports ensure system availability. If one coaxial cable fails, the adapter switches communication to the redundant path instantly, preventing process shutdowns in oil, gas, or chemical refinery operations.
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Extreme Thermal Performance: A surrounding temperature rating of up to 85 °C allows this adapter to function in high-heat process environments without the risk of thermal shutdown or signal degradation.
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Streamlined DIN Rail Integration: The module snaps onto standard DIN rails and connects to the FLEX Ex backplane. This modular design permits rapid hardware replacement and scales easily as process requirements expand.
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Rugged Mechanical Build: IEC 68-2-6 compliant vibration testing (2 g) ensures that the unit maintains electrical integrity even when mounted on heavy processing equipment or near high-vibration machinery.
FAQs
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What type of ControlNet cable does this adapter require?
Use Allen-Bradley RG-6/U Quad shield coax. For standard installations, use part number 1786-RG6. For applications requiring high flexibility, select the 1786-RG6F/A cable.
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How many I/O modules can a single 1797-ACNR15 support?
This adapter manages a maximum of eight FLEX Ex I/O modules. Ensure your total backplane power consumption does not exceed the adapter's output limits.
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Can I use this module in non-hazardous areas?
While technically possible, the 1797-ACNR15 is specifically engineered and certified for Intrinsically Safe environments. For standard non-hazardous applications, the 1794-ACNR15 provides a more cost-effective alternative.
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Does this unit arrive in factory-sealed packaging?
Yes. We guarantee this 1797-ACNR15 is 100% Brand New and Original. Each module arrives in the original manufacturer's box with full documentation and quality seals intact.
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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