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
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.