Description
Product Name : 1772-ME8 Allen Braley Central control module
Product details:
Allen-Bradley, a brand under Rockwell Automation, is a global leader in industrial automation. Their Programmable Logic Controllers (PLCs) and Programmable Automation Controllers (PACs) are renowned for their reliability, particularly in North American markets.
Here is a detailed guide to Allen-Bradley PLC products, parameters, advantages, and applications.
1. Major Product Families
Allen-Bradley categorizes its controllers based on the scale of the application:
| Series | Type | Target Application | Key Models |
| ControlLogix | PAC | Large-scale, high-performance, integrated motion | 5580 (L8x), 5570 (L7x) |
| CompactLogix | PAC | Mid-range, small-to-medium machines | 5380, 5370, 5480 |
| Micro800 | PLC | Low-cost, standalone micro-applications | Micro810, 820, 850, 870 |
| MicroLogix | PLC | Legacy small-scale (Being phased out by Micro800) | 1100, 1400 |
| SLC 500 / PLC-5 | PLC | Legacy systems (Mature/Discontinued) | SLC 5/03, 5/05 |
2. Technical Parameters
While specific parameters vary by model, the core technical standards include:
- Processor Speed: Modern Logix 5580 controllers offer up to 20x faster task execution compared to previous generations.
- Memory Capacity: Ranges from 2 KB (Micro810) up to 40 MB (ControlLogix 5580).
- Communication Protocols: Primarily EtherNet/IP (industry standard), with legacy support for DeviceNet, ControlNet, and DH+.
- I/O Capacity: * Micro: 10 to 132 points.
- Compact: Up to 31 local modules; thousands of distributed I/O.
- Control: Virtually unlimited via distributed networks.
- Operating Environment: Standard temp range 0°C to 60°C (32°F to 140°F); “XT” versions available for extreme environments.
3. Product Advantages
- Superior Online Editing: Unlike many competitors, Allen-Bradley allows users to modify code and “test” it in real-time without stopping the machine, significantly reducing downtime.
- Integrated Architecture: A single software environment (Studio 5000 Logix Designer) manages logic, safety, and motion control, creating a seamless workflow.
- Scalability: You can migrate code easily from a small CompactLogix to a massive ControlLogix system because they share the same Logix engine.
- Ruggedness & Longevity: Known for extremely high MTBF (Mean Time Between Failures). Hardware often remains operational for 20+ years.
- Market Support: In North America, spare parts and certified engineers are readily available, ensuring fast recovery from failures.
4. Considerations & Limitations (Precautions)
- Cost (“The Rockwell Tax”): Allen-Bradley hardware and software licenses are generally more expensive than brands like Siemens, Beckhoff, or Omron.
- Software Licensing: Software (Studio 5000) requires a paid subscription or permanent license, which can be a significant recurring cost for small shops.
- Proprietary Nature: While they support open standards like EtherNet/IP, the ecosystem is heavily designed to work best with other Rockwell products (PowerFlex drives, PanelView HMIs).
- Learning Curve: While “Tag-based” programming is intuitive, the complex file-based structure of legacy systems (SLC/MicroLogix) requires specialized training.
5. Product Applications
Allen-Bradley PLCs are the “brain” of automation across diverse sectors:
- Automotive: High-speed assembly lines, robotic welding cells, and paint shops (ControlLogix).
- Food & Beverage: High-speed packaging, bottling lines, and CIP (Clean-in-Place) systems.
- Oil & Gas: Wellhead control, pipeline monitoring, and emergency shutdown systems (SIL 2/3 rated controllers).
- Water/Wastewater: Distributed pump station control using Micro800 or CompactLogix.
- Material Handling: Complex conveyor systems and automated storage/retrieval systems (ASRS).
6. Maintenance & Safety Tips
- Firmware Updates: Always keep firmware aligned with the Studio 5000 version to avoid communication glitches.
- Grounding: Ensure proper chassis grounding to prevent “noise” from affecting sensitive analog signals.
- Battery Management: For older series (SLC/PLC-5), monitor the “Battery Low” LED to avoid losing the program during a power cycle. (Modern Logix controllers use non-volatile energy storage).
- Environment: Use filtered fans or heat exchangers in enclosures to prevent dust buildup and thermal stress on the CPU.
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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