Allen Bradley 1771-OVN/B Low-fidelity Output Module
Allen Bradley 1771-OVN/B Low-fidelity Output Module
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Brand:Allen Bradley PLC Item No.:1771-OVN/B Product Origin:USA Product Dimensions:165 x 51 x 89 mm Product Weight:0.49 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 1771-OVN/B is a low-fidelity discrete output module used within PLC-5 rack-based automation systems. It is designed to provide stable ON/OFF control signals for industrial field devices such as relays, solenoids, and contactors.
This module is widely used in legacy industrial installations where reliability, deterministic response, and long lifecycle support are more important than advanced diagnostics or modern communication features. Its straightforward architecture makes it particularly suitable for maintenance-heavy environments and retrofit applications.
Technical Specifications
Parameter
Specification
Product Type
Low-fidelity Digital Output Module
Series
1771
Model
OVN/B
Output Type
Discrete ON/OFF
System Compatibility
PLC-5 1771 Rack
Channels
Multi-point digital output
Mounting Type
Rack-mounted (1771 chassis)
Isolation
Backplane isolation
Operating Temperature
0°C to 60°C
Storage Temperature
-40°C to 85°C
Dimension
27.9 × 5.1 × 17.8 cm
Weight
1.2 kg
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Applications
• Discrete ON/OFF control in PLC-5 based automation systems
• Driving relays, solenoids, and contactor coils in industrial control panels
• Conveyor sequencing and automated material handling operations
• Packaging machinery logic output execution
• Process interlock and permissive signal control systems
• Retrofit replacement for legacy PLC-5 installations in brownfield projects
• Basic actuator switching in deterministic industrial environments
Advantages
• Stable integration with Allen-Bradley PLC-5 1771 rack architecture
• Reliable discrete output performance for ON/OFF industrial control tasks
• Simplified configuration that reduces engineering and commissioning effort
• Rugged industrial-grade construction for continuous plant operation
• Strong long-term compatibility with legacy automation systems
• Low maintenance design due to solid-state switching structure
Technical FAQs
Q1: What is the primary function of the 1771-OVN/B module?
It converts PLC logic signals into discrete ON/OFF outputs for field devices.
Q2: Is it compatible with modern PLC platforms?
No, it is designed specifically for PLC-5 1771 rack-based systems.
Q3: Does this module support analog output signals?
No, it is strictly a digital discrete output module.
Q4: What types of loads can it control?
It can drive relays, solenoids, contactors, and indicator devices.
Q5: Does it provide channel-level diagnostics?
No, it does not include advanced per-channel diagnostic capabilities.
Q6: How is the module addressed in a system?
It is addressed through PLC-5 rack slot configuration.
Q7: Is it suitable for fast switching applications?
It supports standard industrial switching suitable for discrete automation.
Q8: Does it require external field power?
Yes, field-side power is required depending on load configuration.
Q9: Can it operate in harsh industrial environments?
Yes, it is designed for electrically noisy industrial conditions.
Q10: Does it support redundancy or backup operation?
No, redundancy is not a built-in feature of this module.
