Genuine Allen-Bradley 1791-DSIB8XOB8 1791 Compact Block I/O - Industrial Automation Part

Allen-Bradley 1791-DSIB8XOB8 Compact Block I/O Module

Description

Allen-Bradley 1791-DSIB8XOB8 Discrete I/O Module – 1791 Compact Block I/O Series

Picture a high-speed automotive assembly line where a single I/O node goes silent mid-shift. Conveyors lock, robotic welders freeze, and every minute of unplanned downtime erodes OEE targets and delivery commitments. Without a proven, field-hardened block I/O module at that node, recovery means manual rewiring, extended troubleshooting, and costly engineering callouts. The Allen-Bradley 1791-DSIB8XOB8 eliminates that risk — delivering deterministic, high-density discrete I/O in a sealed, DIN-rail-mountable housing engineered to keep production running in the harshest plant environments.

Within Rockwell Automation’s 1791 Compact Block I/O Series, the 1791-DSIB8XOB8 holds a critical mid-density position: 8 DC sink inputs and 8 DC source outputs in a single compact block, making it the go-to choice for machine builders and system integrators who need to maximize I/O density without expanding panel footprint. Globally, this series is deployed across automotive assembly, food & beverage processing, material handling, and semiconductor fabrication — where Allen-Bradley’s DeviceNet and Remote I/O compatibility ensures seamless integration with ControlLogix, CompactLogix, and SLC 500 platforms.

Technical Specifications

Part Number: 1791-DSIB8XOB8
Series: 1791 Compact Block I/O
Manufacturer: Allen-Bradley / Rockwell Automation
Input Type: 8 × DC Sink Inputs (24V DC)
Output Type: 8 × DC Source Outputs (24V DC)
Communication Protocol: DeviceNet / Remote I/O (RIO)
Mounting: DIN Rail or Panel Mount
Enclosure Rating: IP67 (dust-tight, water-immersion resistant)
Operating Temperature: 0°C to 55°C
Supply Voltage: 24V DC
Weight: 400 g (approx.)

Note: All specifications are based on published Allen-Bradley documentation. Contact us to verify the latest revision details before ordering.

Key Features & Benefits

High-Density I/O in Compact Form: 8 inputs + 8 outputs in a single block module reduces panel space and simplifies field wiring.
IP67-Rated Sealed Enclosure: Direct machine-mount installation without a separate control cabinet — ideal for washdown and dusty environments.
Native DeviceNet Support: Plug-and-play integration with Allen-Bradley PLCs and distributed control architectures via standard DeviceNet cabling.
Deterministic I/O Scanning: Real-time, cycle-accurate data exchange critical for high-speed discrete control and safety interlock applications.
Reduced Wiring Complexity: Pre-wired block design eliminates individual terminal connections, cutting installation time and wiring error risk.
Wide Operating Temperature Range: Reliable performance from 0°C to 55°C — suitable for climate-controlled and semi-outdoor industrial environments.

Industry & Equipment Applications

Automotive Manufacturing: Body assembly lines, welding stations, and conveyor control systems requiring high-cycle discrete I/O.
Food & Beverage Processing: Packaging lines, filling machines, and conveyor sorting systems with washdown-resistant I/O requirements.
Material Handling: Palletizers, sorters, and automated storage & retrieval systems (AS/RS) with distributed I/O architectures.
Semiconductor & Electronics: Pick-and-place equipment and test fixtures demanding deterministic, low-latency I/O response.
Machine Tool & OEM Equipment: CNC machine peripherals, safety interlocks, and tooling control requiring compact, field-mount I/O.

System Integration & Compatible Parts

The 1791-DSIB8XOB8 is designed for seamless integration within Allen-Bradley’s distributed control ecosystem. Commonly paired components include:

Controllers: ControlLogix (1756 series), CompactLogix (1769 series), SLC 500 (1747 series)
DeviceNet Adapter: 1791-ADNB (DeviceNet Adapter for 1791 Block I/O)
DeviceNet Scanner (ControlLogix): 1756-DNB
Power Supplies: 1606-XLP series 24V DC
Programming Software: Studio 5000 Logix Designer, RSLogix 500
Related 1791 Modules: 1791-OB16, 1791-IB16, 1791-DSIB16XOB16 for expanded I/O configurations

Contact our technical team for a full BOM review and compatibility confirmation before placing your order.

Our Quality Assurance Process

At Konmask.com, every Allen-Bradley module undergoes a rigorous multi-stage verification process before shipment:

Authenticity Verification: Cross-referenced against Rockwell Automation’s authorized part databases to confirm genuine origin.
Visual & Physical Inspection: Label integrity, connector condition, housing damage, and revision markings checked.
Functional Pre-Check: Where applicable, modules are bench-tested for basic communication and I/O response prior to packaging.
Secure Packaging: Anti-static packaging with moisture barrier and shock-absorbing materials for safe international transit.
Documentation: Shipment includes product datasheet, test record, and certificate of conformance upon request.

How to Order

Submit your inquiry via the Contact Us page or email support@konmask.com with your required quantity and delivery timeline.
Our technical sales team confirms stock availability, lead time, and provides a formal quotation within 24 business hours.
Upon PO confirmation, we arrange secure packaging and international shipping with full tracking.
Post-delivery technical support is available for integration assistance and commissioning.

Minimum Order Quantity: 1 unit | Lead Time: Subject to stock availability — contact us for current status.

Why Choose Konmask.com?

✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
✅ Global Sourcing Network: Access to new and refurbished Allen-Bradley inventory from verified international suppliers.
✅ Technical Expertise: Our team includes experienced automation engineers who advise on compatibility, integration, and system design.
✅ Fast B2B Response: Dedicated sales support with quotation turnaround within 24 business hours.
✅ Secure International Shipping: Experienced in export compliance and customs documentation for global industrial buyers.
✅ After-Sales Support: Technical assistance available post-delivery to ensure successful commissioning.

Frequently Asked Questions

Q: Is the 1791-DSIB8XOB8 still in production by Rockwell Automation?
A: The 1791 Compact Block I/O series has reached end-of-life status with Rockwell Automation. Konmask.com maintains access to new-surplus and refurbished stock. Contact us for current availability.

Q: What communication protocol does the 1791-DSIB8XOB8 use?
A: This module communicates via DeviceNet and is also compatible with Allen-Bradley’s Remote I/O (RIO) network, depending on the adapter used.

Q: Can this module be used with ControlLogix or CompactLogix controllers?
A: Yes. With the appropriate DeviceNet scanner card (e.g., 1756-DNB for ControlLogix), the 1791-DSIB8XOB8 integrates into modern Logix-based control systems.

Q: Do you provide a warranty on this module?
A: Yes. A standard warranty is included with all shipped units. Specific terms are provided in the quotation. Extended warranty options are available upon request.

Q: Can you supply multiple units for a large project?
A: Yes. We support project-quantity procurement. Submit your BOM or project requirements and our team will provide a consolidated quotation.

Q: What is the typical lead time for the 1791-DSIB8XOB8?
A: Lead time varies based on current stock levels. In-stock units typically ship within 3–5 business days. Contact us for real-time availability.

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Allen-Bradley 1791-DSIB8XOB8 Compact Block I/O Module