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- Allen-Bradley
- 1771-NT1
- High-Resolution Isolated Analog Input Module
- USA
- 165 x 51 x 89 mm
- 0.68 kg
- Xiamen, China
- New & In Stock
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen-Bradley 1771-NT1 High-Resolution Isolated Analog Input Module is designed to provide high-accuracy acquisition of analog signals while offering complete electrical isolation between channels and the control system. This ensures noise-free, precise measurements in industrial automation applications.
Its compact and modular design allows for easy integration into the 1771 I/O chassis, making it ideal for PLC, DCS, and SCADA systems that require reliable, isolated analog input.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1771-NT1 |
| Product Type | High-Resolution Isolated Analog Input Module |
| Function | Measures analog signals with high precision and isolation |
| Compatible Systems | Allen-Bradley 1771 I/O chassis, PLCs, DCS, SCADA systems |
| Input Type | Analog signals (voltage/current) from sensors and transducers |
| Input Resolution | High-resolution input for precise signal processing |
| Isolation | Channel-to-channel and channel-to-system isolation |
| Mounting Type | Chassis-mounted (1771 I/O rack) |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.68 kg |
| Operating Environment | Industrial automation, process control, manufacturing systems |
| Slots Required | Standard 1771 I/O module slot |
| Installation | Plug-in into 1771 I/O chassis |
Function and Working Principle
The 1771-NT1 operates by:
- Receiving analog signals from sensors and process instruments
- Providing electrical isolation between each input channel and the PLC system to prevent interference
- Converting and conditioning signals for high-resolution data processing
- Allowing organized wiring through dedicated terminals
- Supporting modular replacement or expansion without disrupting system operations
This ensures accurate, noise-free, and isolated signal acquisition, critical for high-performance industrial control.
Role in Industrial Automation
The 1771-NT1 serves as a key isolated analog input interface:
- Connects field sensors, transducers, and process devices to PLCs or DCS systems
- Provides high-resolution measurements with full electrical isolation for safe and precise control
- Reduces the risk of signal interference or ground loops
- Supports efficient troubleshooting and maintenance with organized terminals
- Enables modular system expansion within the 1771 I/O chassis
It is ideal for critical process applications requiring accurate, isolated analog inputs.
Industrial Applications
The 1771-NT1 is commonly used in:
- Process monitoring for chemical, pharmaceutical, and energy industries
- Integration with PLCs and DCS for high-precision analog control
- SCADA systems requiring accurate, isolated analog signal acquisition
- Industrial automation systems where signal integrity and noise immunity are essential
- Applications needing high-resolution, isolated analog input channels
Its robust construction ensures long-term, reliable performance in demanding environments.
Installation and System Integration
Installation steps:
- Plug the module into a standard 1771 I/O chassis slot
- Connect analog sensor or transducer wiring to the module terminals
- Verify proper wiring and input range configuration
- Configure the PLC or DCS system to read the analog inputs
- Maintain accessibility for inspection, maintenance, and upgrades
Proper installation guarantees accurate, isolated, and reliable analog input measurements.
Compatible System Components
The 1771-NT1 integrates with:
- Allen-Bradley 1771 I/O chassis
- High-accuracy sensors and transducers
- PLC controllers and DCS input systems
- SCADA systems for process monitoring and control
- Additional 1771 I/O modules for modular expansion
This ensures a robust, organized, and noise-free analog input network.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Allen-Bradley 1771-NI | Isolated Analog Input Module | Channel isolation and high-resolution input | PLC/DCS systems |
| Allen-Bradley 1771-IFE | Fast Analog Input Module | High-speed analog data acquisition | Process monitoring |
| Siemens SM 1231 | Analog Input Module | Modular high-resolution input | SCADA and PLC systems |
| ABB AI810 | High-Resolution Input Module | Accurate measurement for critical processes | Industrial automation |
| GE IS200STAIH2A | Analog I/O Terminal Block | Analog signal termination and routing | PLC/automation panels |
Key Advantages
- High-resolution analog input for precise measurement
- Full electrical isolation between channels and system for noise immunity
- Compact and modular for space-efficient installation
- Organized terminals for easy wiring, maintenance, and troubleshooting
- Reliable performance for industrial automation and process control systems
- Fully compatible with Allen-Bradley 1771 I/O chassis and PLC systems
Technical FAQs
What signals does it support?
Analog voltage or current signals from sensors and process instruments.
How is it mounted?
Plug-in module for Allen-Bradley 1771 I/O chassis.
Does it offer channel isolation?
Yes, provides full channel-to-channel and channel-to-system isolation.
Can it be used in harsh industrial environments?
Yes, it is designed for reliable operation in demanding conditions.
Conclusion
The Allen-Bradley 1771-NT1 High-Resolution Isolated Analog Input Module is a precise, robust solution for isolated analog signal acquisition. Its modular design, high-resolution capability, and full electrical isolation make it essential for PLC, DCS, and SCADA systems requiring reliable, noise-free, and accurate analog inputs.