Product Details
Product Overview
The 1791-16BC functions as a high-density, standalone remote I/O interface for Allen-Bradley PLC and SLC control systems. By combining 16 discrete DC inputs and 16 discrete DC outputs into a single "Block" housing, this module eliminates the need for separate chassis-based I/O cards. It excels in distributed control architectures where localized signal processing reduces wiring overhead and assembly time. We provide this unit as 100% Brand New and factory-original, ensuring maximum operational life for your legacy infrastructure.
Technical Specifications
This module integrates both sensing and switching capabilities within a rugged, compact footprint.
| Feature | Specification |
| I/O Configuration | 32-Point Total (16 Input / 16 Output) |
| Voltage Category | DC Operation |
| Communication Interface | Remote I/O (RIO) Link |
| Module Type | Block I/O (Chassisless) |
| Indicators | Logic side status LEDs |
| Mounting | Panel Mount / DIN Rail |
| Wiring | Fixed terminal blocks |
Engineering Advantages
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Reduced Installation Footprint: The 1791-16BC integrates 32 I/O points without requiring a chassis or power supply module. This "Block" design saves significant cabinet space and allows engineers to mount I/O directly on the machine frame.
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Simplified Field Wiring: The module utilizes a logical terminal layout that separates inputs and outputs. This organization accelerates the commissioning process and prevents wiring errors during high-pressure maintenance windows.
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Ruggedized Remote Processing: Unlike standard rack-mounted cards, the 1791 series features a self-contained enclosure. This construction protects internal circuitry from industrial dust and localized vibration, making it ideal for decentralized mounting near field sensors.
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Legacy Continuity: By utilizing 100% Brand New stock, facilities can maintain older Remote I/O (RIO) networks without the compatibility risks or contamination issues often found in used or refurbished surplus hardware.
FAQs
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Does the 1791-16BC require a separate rack or chassis?
No. The 1791-16BC is a standalone Block I/O module. It mounts directly to a panel or DIN rail and connects to the processor via the Remote I/O blue hose link.
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How does the module handle fault diagnostics?
The front panel includes comprehensive LED indicators. These lights provide real-time status of the RIO communication link, internal module health, and individual I/O point activity for rapid troubleshooting.
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What is the benefit of a "Brand New" unit for a discontinued series?
Many 1791-16BC units on the market are "pulls" from active environments. Our 100% Brand New units feature pristine terminal blocks and zero-cycle internal components, preventing the intermittent communication failures common in aged equipment.
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Can this module interface with newer ControlLogix systems?
Yes, provided you utilize a 1756-DHRIO or 1756-RIO module in the ControlLogix rack. This allows the 1791-16BC to function as a remote drop within a modern control architecture.
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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In modern industrial landscapes, unplanned downtime is the ultimate adversary. For sectors relying on complex PLC and DCS architectures, a single hardware failure can trigger catastrophic production losses. Therefore, implementing redundant automation systems is no longer a luxury; it is a fundamental requirement for mission-critical operations. In this article, I analyze why redundancy remains the backbone of reliable industrial infrastructure.
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.