Description
1. Product Description
The GE 8521-LC-MTis a compact PLC module engineered for industrial control applications. It supports ladder logic programming, multi-network integration, and scalable I/O expansion (up to 256 points). Key features include a wide voltage range (100–240 V AC), redundant power inputs, and a rugged design (operating temperature: -40°C to +70°C). The module integrates with GE’s industrial internet solutions for predictive maintenance and smart manufacturing, ensuring high efficiency in sectors like energy, manufacturing, and infrastructure.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Voltage Input | 100–240 V AC (85–264 V AC wide range) |
| Processor | 32-bit RISC CPU (1 GHz) |
| I/O Points | Expandable up to 256 points (modular design) |
| Memory | 2 MB storage |
| Communication Interfaces | Ethernet, RS-232, RS-485 |
| Operating Temperature | -40°C to +70°C (non-condensing) |
| Dimensions | 80 mm (W) × 160 mm (H) × 50 mm (D) |
| Weight | 300 g |
| Relative Humidity | 5%–95% (non-condensing) |
8521-LC-MT
3. Advantages and Features
- High Reliability: Redundant design and fault self-diagnosis (MTBF: 150,000+ hours).
- Flexible Architecture: Supports distributed/centralized control with independent main/auxiliary controllers.
- Powerful Processing: Real-time multitasking OS ensures 0.2 μs/instruction processing speed.
- Modular Design: Easy configuration via expandable I/O modules and multiple programming languages.
- Wide Environmental Range: Operates in extreme temperatures and harsh conditions (IP20 standard).
4. Application Areas and Use Cases
Industry Applications:
- Manufacturing (automated production lines)
- Energy (power generation, petrochemicals)
- Infrastructure (water/wastewater treatment)
- HVAC (building automation)
- Metallurgy (motor speed control)
Case Study: A water treatment plant in Australia reduced downtime by 30% using the 8521-LC-MT for pump station management. Its real-time monitoring and modular scalability enabled seamless integration with existing systems, improving operational efficiency by 25%.
5. Competitor Comparison
Compared to similar PLC modules:
- Faster Processing: 20% higher clock speed than legacy models.
- Broader Voltage Range: Supports 100–240 V AC (vs. 24 V DC only in some 竞品).
- Extreme Environment Tolerance: Operates at -40°C (vs. typical -20°C minimum in comparable products).
- Lower Total Cost: 5-year warranty and modular design reduce maintenance costs by 15%.
8521-LC-MT
6. Selection Recommendations
- Compatibility: Ensure integration with GE’s Proficy Machine Edition software and Modicon M2 series I/O.
- Environment: Choose IP65 enclosures (optional) for dusty/wet environments.
- Scalability: Pair with GE’s VersaMax I/O for small systems; use distributed architecture for large-scale projects.
- Budget: Balances enterprise-grade performance (e.g., industrial internet compatibility) with mid-range pricing.
7. Precautions
- Installation: Follow IEC 61131-2 standards; ensure proper grounding and airflow.
- Software: Use GE Proficy ME V7.0 or later for programming.
- Maintenance: Replace internal battery (backup memory) every 7 years (expected lifespan).
- Voltage Stability: Use surge protectors for unstable power grids.
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