871A-TR3 Allen Bradley

871A-TR3 Allen Bradley Controller module
Brand:Allen-Bradley Model number:871A-TR3

Lead Time:3-day working day Country of origin: United States
Price: Please contact us Product weight:2.145kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: FedEx, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

Stock In Stock
Brand Allen-Bradley
Model 871A-TR3
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Description

Product Name: 871A-TR3  Allen Braley Controller module

Product details:

Allen-Bradley, a brand under Rockwell Automation, is a global leader in industrial automation. Their modular products, particularly the Logix family, are renowned for their reliability and “Integrated Architecture.”

Below is a detailed overview of Allen-Bradley modules, focusing on the most popular series: ControlLogix (1756), CompactLogix (5069/1769), and POINT I/O (1734).

 

1. Product Categories & Series

Allen-Bradley modules are generally categorized into Controllers (CPUs), I/O Modules, Communication Modules, and Specialty Modules.

Series Description Best For
ControlLogix (1756) Large-scale, chassis-based modular system. High-speed, high-performance, and redundant systems.
CompactLogix (5069/1769) Mid-range, rack-less or compact modular design. Machine-level control and distributed I/O.
POINT I/O (1734) Ultra-slim, density-optimized slice I/O. Remote I/O where space is limited.

 

2. Technical Parameters (Common Specifications)

While parameters vary by specific model number, these are the standard specifications for modern Allen-Bradley modules:

  • Operating Voltage: Typically 24V DC for logic, with I/O modules supporting 120/240V AC or 5-24V DC.
  • Communication Protocols: Built-in EtherNet/IP (standard), with support for DeviceNet, ControlNet, and legacy DH+.
  • Environmental Ratings:
    • Operating Temp: 0 to 60^circC (32 to 140^circF).
    • Vibration: 2.0g @ 10–500 Hz.
  • I/O Density: Ranges from 2-point (specialty) to 32-point (high-density digital) per module.
  • Isolation: Usually 300V continuous insulation between field side and logic side.

 

3. Product Advantages

  • Unified Programming: All Logix platforms use the Studio 5000 Logix Designer environment, meaning code used in a small machine can be easily scaled to a large factory.
  • Tag-Based Addressing: Unlike older PLCs that use memory addresses (like B3:0/1), AB uses descriptive tags (e.g., Motor_Start_Button), making troubleshooting much faster.
  • Hot-Swappable (RIUP): Most 1756 modules support Removal and Insertion Under Power, allowing you to replace a faulty module without stopping the entire system.
  • Advanced Diagnostics: Real-time electronic keying and module-level diagnostics (e.g., open wire detection, short circuit protection) reduce downtime.
  • Integration: Seamless “Producer/Consumer” data model allows different controllers to share data across the network effortlessly.

 

4. Precautions & Maintenance

  • Electrostatic Discharge (ESD): These modules are highly sensitive to static. Always use an ESD wrist strap during installation or handling.
  • Power Sequencing: Ensure the backplane power supply is compatible with the total current draw of all installed modules. Use the Integrated Architecture Builder (IAB) tool to verify power requirements.
  • Firmware Compatibility: The module firmware version must be compatible with the Controller’s major revision. Always check the Product Compatibility and Download Center (PCDC) before commissioning.
  • Electronic Keying: Be careful when setting “Exact Match” keying; if the replacement module has a different firmware or series, the controller will reject it.

 

5. Product Applications

Allen-Bradley modules are found in almost every industrial sector:

  • Oil & Gas: ControlLogix systems with high-availability redundancy for pipeline monitoring and refining.
  • Automotive: High-speed motion control and assembly line synchronization using Kinetix drives and Logix modules.
  • Food & Beverage: CompactLogix systems for packaging, bottling, and batch processing where hygiene and space are factors.
  • Water/Wastewater: Distributed POINT I/O stations for remote pump station monitoring over long distances.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation!

Colour:new Warranty: 12 months
Lead Time:3-day working day Country of origin: Sweden
Price: Please contact us Product weight:0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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