Description
1. Product Description
The PP846A 3BSE042238R2 is a high-performance PLC processor module designed by ABB, a leading global provider of industrial automation solutions. Engineered for critical control applications, this module delivers advanced processing capabilities, seamless integration with ABB’s industrial networks (e.g., PROFIBUS, Ethernet/IP), and robust reliability. The PP846A 3BSE042238R2 serves as the core of ABB’s AC500 PLC system, enabling real-time data processing, modular I/O control, and flexible communication for industrial automation. Its compact design, high-speed performance, and compatibility with ABB’s extensive automation ecosystem make it ideal for demanding environments in manufacturing, energy, and process industries.
2. Product Specifications
| Parameter | Details |
|---|---|
| Brand | ABB |
| Model | PP846A 3BSE042238R2 |
| Voltage | 24V DC (±10%) |
| Current | ≤800mA (operating), ≤1.5A (peak) |
| Processor | 32-bit PowerPC (400 MHz) |
| Memory | 16MB RAM, 32MB Flash (user-programmable) |
| Interfaces | Ethernet (10/100 Mbps), PROFIBUS DP-V1, RS-485 (Modbus RTU), USB 2.0 |
| I/O Capacity | Supports up to 1,024 I/O points (via ABB I/O modules: AI810, DI810, etc.) |
| Operating Temperature | -20°C to +60°C |
| Certifications | CE, UL, CSA, IEC 61131-2 |
| Dimensions | 125mm x 100mm x 100mm |
PP846A 3BSE042238R2
3. Advantages and Features
- High-Speed Processing: 400 MHz CPU with 16MB RAM enables 0.1 ms/kB program execution time, outperforming standard PLC processors.
- Redundancy Support: Optional hot-swap redundancy for critical systems (MTBF > 200,000 hours).
- Flexible Communication: Native support for PROFIBUS, Ethernet/IP, and Modbus, ensuring interoperability with third-party devices.
- Modular Expansion: Scalable via ABB’s AC500 I/O modules (e.g., DO810, AO810) for tailored control solutions.
- Energy Efficiency: Low power consumption (≤18W) reduces operational costs.
4. Application Areas and Use Cases
Industries: Oil & gas, water treatment, automotive manufacturing, and power generation.
Scenarios: Process control, machine automation, and distributed control systems (DCS).
Scenarios: Process control, machine automation, and distributed control systems (DCS).
Case Study: ABB deployed the PP846A 3BSE042238R2 in a North American water treatment plant. The module managed 500+ sensors and actuators across 10 treatment units, achieving 99.9% uptime and a 25% reduction in maintenance costs compared to legacy systems.
5. Competitor Comparison
Compared to similar PLC processors:
- Faster Redundancy: Hot-swap capability (vs. manual reset required in some alternatives).
- Superior Memory: 32MB Flash (2x more than mid-range competitors for complex applications).
- Wider Temperature Range: Operates at -20°C (vs. -10°C minimum in comparable models).
PP846A 3BSE042238R2
6. Selection Recommendations
- System Compatibility: Ensure compatibility with ABB AC500/AC500-eCo systems or third-party PROFIBUS/Modbus networks.
- Performance Needs: Choose the PP846A for high-speed applications (vs. lower-spec models like PP820 for basic control).
- Environment: Verify temperature/humidity ranges match site conditions (e.g., outdoor installations require IP65 enclosures).
- Budget: Balance features (redundancy, memory) with cost—the PP846A offers enterprise-grade performance at a competitive price.
7. Precautions
-
Installation: Follow ABB’s wiring guidelines (shielded cables for PROFIBUS; 24V DC power supply redundancy recommended).
-
Safety: Disconnect power before module replacement; use ESD protection (static-sensitive components).
-
Firmware Updates: Regularly update firmware via ABB’s Automation Builder software to ensure compatibility and security.
-
Redundancy Setup: For dual-channel systems, use ABB’s Y-link modules (3BSE036390R1) and validate synchronization protocols.
