Allen-Bradley 1771-OVN Analog Output Module | Replacement, Equivalent & Selection Guide
The Allen-Bradley 1771-OVN is a high-performance analog output module designed for the Rockwell Automation PLC-5 programmable controller platform. It delivers precise analog signal control for industrial process automation, making it a trusted choice for engineers seeking reliable, spec-accurate components. At Konmask.com, we specialize in sourcing genuine and compatible automation hardware for B2B industrial buyers worldwide.
Technical Specifications
- Part Number: 1771-OVN
- Manufacturer: Allen-Bradley / Rockwell Automation
- Module Type: Analog Output Module
- Platform: PLC-5 I/O System (1771 Series)
- Output Signal: 4–20 mA current output
- Number of Channels: 4 channels
- Resolution: 12-bit
- Output Range: 0–20 mA / 4–20 mA selectable
- Power Supply: Backplane powered via 1771 I/O chassis
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Relative Humidity: 5% to 95% non-condensing
- Weight: Approx. 500 g
- Certifications: UL, CE
Compatible Replacement & Equivalent Models
If the 1771-OVN is unavailable or discontinued, the following models offer compatible or equivalent functionality:
- 1771-OFE1 – Allen-Bradley 4-channel analog output, 4–20 mA, direct drop-in for most PLC-5 applications
- 1771-OFE2 – Allen-Bradley 4-channel analog output, 0–10 V / 4–20 mA selectable
- 1771-OFE3 – Allen-Bradley enhanced analog output with extended range options
- 1771-OA – Discrete output alternative for non-analog control loops
- 1756-OF4 (ControlLogix) – Recommended migration path for modernization projects
- 1769-OF4 (CompactLogix) – Compact platform equivalent for system upgrades
Note: Always verify backplane compatibility, channel count, and signal range before substituting modules. Contact our engineers at [email protected] for a free compatibility check.
Why Choose the Original 1771-OVN
- Proven Reliability: Field-tested in thousands of industrial installations globally
- Exact Fit: Native compatibility with all 1771 I/O chassis without additional configuration
- Precise Signal Control: 12-bit resolution ensures accurate process variable control
- Minimal Downtime: Hot-swap capable within the 1771 chassis for rapid maintenance
- Long Service Life: Designed for continuous 24/7 industrial operation
- OEM Support: Full Rockwell Automation documentation and firmware support available
Typical Applications
- Process control loops (flow, pressure, temperature, level)
- Variable speed drive (VFD) setpoint control
- Valve positioner and actuator control
- Chemical and petrochemical plant automation
- Water and wastewater treatment systems
- Food and beverage processing lines
- Automotive assembly and manufacturing automation
- Power generation and utilities control
System Compatibility
- Compatible Chassis: 1771-A1B, 1771-A2B, 1771-A3B, 1771-A4B series I/O chassis
- Compatible Processors: PLC-5/10, PLC-5/15, PLC-5/20, PLC-5/25, PLC-5/30, PLC-5/40, PLC-5/60, PLC-5/80
- Communication: DH+, Remote I/O (RIO)
- Software: RSLogix 5, Studio 5000 (via legacy bridge)
- Not Compatible With: SLC 500 (1746 series), MicroLogix, ControlLogix (1756 series) without adapter
Selection Guide
Use this guide to select the right analog output module for your PLC-5 system:
- Need 4–20 mA current output, 4 channels? → 1771-OVN (this module) or 1771-OFE1
- Need voltage output (0–10 V)? → 1771-OFE2
- Need more channels (8 ch)? → 1771-OFE (8-channel variant)
- Migrating to ControlLogix? → 1756-OF4 with 1771 RIO adapter
- Migrating to CompactLogix? → 1769-OF4
- Budget-sensitive replacement? → Contact us for certified refurbished 1771-OVN stock
Not sure which module fits your system? Send us your PLC-5 chassis layout and we’ll recommend the optimal solution.
Quality Assurance & Sourcing
- Source: Authorized distributors and certified surplus channels
- Inspection: Every unit undergoes visual inspection and functional verification before shipment
- Authenticity: Genuine Allen-Bradley / Rockwell Automation parts with traceable documentation
- Warranty: 12-month warranty against manufacturing defects
- Packaging: Anti-static ESD packaging with original or equivalent protective materials
- Certifications: UL Listed, CE Marked, RoHS compliant where applicable
How to Order
- Confirm your PLC-5 chassis model and available slot type
- Verify required output signal type (4–20 mA or voltage)
- Add 1771-OVN to cart or contact us for bulk/OEM pricing
- Provide your shipping address — we ship worldwide from China
- Receive order confirmation and tracking within 24 hours
📧 [email protected] | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Is the 1771-OVN still in production?
A: The 1771-OVN has been discontinued by Rockwell Automation. However, genuine surplus stock and certified refurbished units remain available through Konmask.com.
Q: Can I replace 1771-OVN with 1771-OFE1?
A: Yes, in most cases. Both are 4-channel, 4–20 mA analog output modules for the 1771 chassis. Verify your RSLogix 5 configuration file supports the OFE1 module type before swapping.
Q: What is the lead time for 1771-OVN?
A: In-stock units ship within 1–3 business days. For large quantities, lead time is 5–10 business days. Contact us for real-time stock status.
Q: Do you provide a certificate of conformance (CoC)?
A: Yes. A CoC and inspection report are available upon request for all orders.
Q: Can I use 1771-OVN in a ControlLogix system?
A: Not directly. You would need a 1771 RIO adapter (e.g., 1756-DHRIO) to bridge legacy 1771 I/O into a ControlLogix rack. We recommend migrating to 1756-OF4 for new ControlLogix builds.
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