Allen-Bradley 1771-OVN Digital Output Module – 1771 I/O Series
When a digital output module fails on the plant floor, the consequences are immediate and severe: conveyor lines freeze, actuators lose command signals, safety interlocks go blind, and entire production cells grind to a halt. In process-critical environments — automotive assembly, chemical batching, oil & gas wellhead control — even minutes of unplanned downtime translate into tens of thousands of dollars in lost output. The Allen-Bradley 1771-OVN Digital Output Module is the precision interface that keeps discrete field devices under deterministic PLC command, making it one of the most operationally irreplaceable components in a 1771-based control architecture.
Within the Allen-Bradley 1771 I/O family — the backbone of the legendary PLC-5 platform — the 1771-OVN occupies a well-defined technical niche: a 32-point, TTL-compatible discrete output module designed for high-density output applications where board space and wiring economy are paramount. Rockwell Automation’s PLC-5 ecosystem remains one of the most widely installed legacy control platforms globally, with hundreds of thousands of active installations across North America, Europe, and Asia-Pacific. Sourcing genuine, tested 1771-OVN modules is a mission-critical procurement task for maintenance engineers and MRO buyers worldwide.
Technical Specifications
- Part Number: 1771-OVN
- Manufacturer: Allen-Bradley / Rockwell Automation
- Series: 1771 I/O (PLC-5 Compatible)
- Module Type: Digital Output Module
- Output Logic: TTL / Transistor (Solid-State)
- Compatible Chassis: 1771 I/O Chassis (all standard sizes)
- Backplane Interface: 1771 I/O Bus
- Weight: Approx. 500 g
- Note: All specifications are based on published Allen-Bradley documentation. Contact us to confirm exact revision details for your application.
Key Features & Benefits
- High-Density Output: Maximizes I/O point count per chassis slot, reducing hardware footprint and wiring complexity in dense control panels.
- Solid-State Switching: No mechanical contacts means longer service life, faster switching speeds, and immunity to contact bounce — critical for high-cycle applications.
- Direct PLC-5 Backplane Compatibility: Plug-and-play integration into existing 1771 chassis without hardware modification or adapter cards.
- Deterministic Output Control: Synchronized with PLC-5 scan cycle for precise, repeatable discrete output timing.
- Rugged Industrial Design: Engineered to operate reliably in electrically noisy industrial environments with wide temperature tolerance.
- Drop-In Replacement: Maintains backward compatibility with existing 1771 I/O wiring and PLC-5 ladder logic programs — no reprogramming required.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, engine assembly test stands
- Food & Beverage: Bottling line actuator control, packaging machine sequencing, CIP valve command
- Oil & Gas: Wellhead control panels, pipeline valve actuation, compressor station automation
- Chemical Processing: Reactor feed valve control, batch sequencing, emergency shutdown (ESD) output interfaces
- Water & Wastewater: Pump station control, dosing system actuation, SCADA-linked field device command
- Pulp & Paper: Roll press control, dryer section sequencing, winder drive enable signals
- Material Handling: Sortation system diverter control, conveyor zone enable, AGV interface panels
System Integration & Compatible Parts
The 1771-OVN is designed to operate within the broader Allen-Bradley 1771 I/O ecosystem. Compatible and commonly paired components include:
- 1771 I/O Chassis: 1771-A1B, 1771-A2B, 1771-A3B, 1771-A4B (4, 8, 12, 16-slot)
- PLC-5 Processors: 1785-L20, 1785-L40, 1785-L60, 1785-L80 series
- 1771 Power Supplies: 1771-P4S, 1771-P6S, 1771-P7
- 1771 Input Modules: 1771-IVN, 1771-IA, 1771-IB (for complementary I/O pairs)
- Wiring Arms: 1771-WN, 1771-WB (field wiring termination)
If you need help identifying compatible components for your existing 1771 system, our engineering team is available to assist with BOM review and cross-referencing.
Our Quality Assurance Process
At Konmask.com, every Allen-Bradley 1771-OVN module we supply undergoes a structured quality verification process before shipment:
- Visual Inspection: Board-level examination for physical damage, corrosion, component integrity, and label authenticity
- Functional Verification: Where applicable, modules are bench-tested against known-good reference systems to confirm output channel operation
- Authenticity Screening: Cross-referenced against Allen-Bradley catalog data and date codes to identify counterfeit or non-genuine parts
- Packaging: Anti-static packaging with desiccant, clearly labeled with part number, revision, and inspection status
- Documentation: Certificate of conformance and test report available upon request for regulated industries
How to Order
- Submit an Inquiry: Use the contact form or email support@konmask.com with your required quantity, delivery timeline, and any revision preferences.
- Receive a Quote: Our team will respond within 1 business day with pricing, lead time, and availability confirmation.
- Order Confirmation: Upon agreement, we issue a proforma invoice. Payment terms are discussed at this stage.
- Shipment & Tracking: We ship via DHL, FedEx, or UPS Express with full tracking. Export documentation provided for international orders.
- After-Sales Support: Our technical team remains available post-delivery for integration questions or warranty claims.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and industrial control components — not a generalist distributor.
- Global Sourcing Network: Access to genuine Allen-Bradley inventory from authorized channels and verified secondary market sources worldwide.
- Fast Response: Dedicated B2B inquiry handling with same-day or next-business-day quote turnaround.
- Technical Competence: Our team includes engineers with hands-on PLC-5 and 1771 I/O system experience — we speak your language.
- Transparent Documentation: Full traceability documentation available; we do not ship unverified or undocumented parts.
- Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing without compromising on quality assurance.
Frequently Asked Questions
Q: Is the 1771-OVN still in production by Rockwell Automation?
A: The 1771 I/O series has reached end-of-life (EOL) status with Rockwell Automation. However, Konmask.com maintains access to new-surplus and refurbished stock to support ongoing maintenance and MRO requirements for existing PLC-5 installations.
Q: Can the 1771-OVN be used as a direct replacement for other 1771-OV variants?
A: The 1771 output module family includes several variants (1771-OVN, 1771-OV, 1771-OVL, etc.) with differences in point count, voltage range, and connector type. We recommend confirming the exact part number and revision against your system documentation before ordering. Our team can assist with cross-referencing.
Q: Do you provide a warranty on the 1771-OVN?
A: Yes. All modules supplied by Konmask.com carry a standard warranty covering defects in materials and workmanship. Warranty terms are specified in the quotation. Extended warranty options are available for large-volume orders.
Q: What is the typical lead time for the 1771-OVN?
A: Lead time depends on current stock availability. In-stock units typically ship within 2–5 business days. For sourced units, lead time is typically 7–15 business days. Contact us for a real-time availability check.
Q: Can you supply multiple 1771-OVN modules for a plant-wide spare parts program?
A: Absolutely. We regularly fulfill bulk MRO orders and spare parts programs for industrial facilities. Volume pricing and blanket order arrangements are available — please include your required quantity in your inquiry.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
{
“@context”: “https://schema.org/”,
“@graph”: [
{
“@type”: “Product”,
“name”: “Allen-Bradley 1771-OVN Digital Output Module”,
“description”: “Allen-Bradley 1771-OVN Digital Output Module for PLC-5 systems. High-density TTL discrete output module compatible with 1771 I/O chassis. Ideal for industrial automation MRO and spare parts procurement.”,
“sku”: “1771-OVN”,
“brand”: {
“@type”: “Brand”,
“name”: “Allen-Bradley”
},
“manufacturer”: {
“@type”: “Organization”,
“name”: “Rockwell Automation”
},
“category”: “PLC I/O Module”,
“url”: “https://konmask.com/products/allen-bradley-1771-ovn-digital-output-module-plc5”,
“offers”: {
“@type”: “Offer”,
“url”: “https://konmask.com/products/allen-bradley-1771-ovn-digital-output-module-plc5”,
“priceCurrency”: “USD”,
“availability”: “https://schema.org/InStock”,
“seller”: {
“@type”: “Organization”,
“name”: “Konmask.com”
}
}
},
{
“@type”: “FAQPage”,
“mainEntity”: [
{
“@type”: “Question”,
“name”: “Is the 1771-OVN still in production by Rockwell Automation?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 1771 I/O series has reached end-of-life (EOL) status with Rockwell Automation. However, Konmask.com maintains access to new-surplus and refurbished stock to support ongoing maintenance and MRO requirements for existing PLC-5 installations.”
}
},
{
“@type”: “Question”,
“name”: “Can the 1771-OVN be used as a direct replacement for other 1771-OV variants?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 1771 output module family includes several variants with differences in point count, voltage range, and connector type. We recommend confirming the exact part number and revision against your system documentation before ordering.”
}
},
{
“@type”: “Question”,
“name”: “Do you provide a warranty on the 1771-OVN?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. All modules supplied by Konmask.com carry a standard warranty covering defects in materials and workmanship. Extended warranty options are available for large-volume orders.”
}
},
{
“@type”: “Question”,
“name”: “What is the typical lead time for the 1771-OVN?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “In-stock units typically ship within 2–5 business days. For sourced units, lead time is typically 7–15 business days. Contact us for a real-time availability check.”
}
},
{
“@type”: “Question”,
“name”: “Can you supply multiple 1771-OVN modules for a plant-wide spare parts program?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. We regularly fulfill bulk MRO orders and spare parts programs for industrial facilities. Volume pricing and blanket order arrangements are available.”
}
}
]
}
]
}
