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Product Introduction
The ABB PM864AK02 (Part Number: 3BSE018164R2) is a high-performance redundant processor unit developed for ABB’s AC 800M controller family within the 800xA Distributed Control System (DCS) platform. It is built for critical industrial automation environments that demand real-time deterministic control, fault tolerance, and exceptional system availability. As an enhanced version in the PM864A series, the PM864AK02 R2 supports hot-redundant CPU configurations, ensuring uninterrupted control and high operational uptime in continuous or batch process systems.
The processor is embedded with intelligent features such as high-speed communication interfaces, real-time clock with battery backup, comprehensive diagnostic functions, and compatibility with ABB’s broad I/O systems and communication modules. It is particularly suited for large-scale, safety-critical industrial processes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Redundant Processor Unit |
| Model | PM864AK02 |
| Order Code | 3BSE018164R2 |
| Processor Type | High-performance RISC microprocessor |
| Clock Frequency | Approx. 100 MHz |
| System Platform | ABB AC 800M, 800xA DCS |
| Memory | 32 MB Flash memory, 16 MB DRAM |
| Non-Volatile Memory | Yes |
| Real-Time Clock | Yes, battery-backed |
| Communication Interfaces | 2 x Ethernet (RJ45), 1 x RS-232, 1 x CEX-Bus port |
| Supported Protocols | MODBUS, TCP/IP, OPC, PROFIBUS, PROFINET, IEC 61850 |
| Redundancy Capability | Full CPU redundancy support via CEX-Bus |
| I/O System Support | Compatible with ABB S800 I/O modules |
| Diagnostics | Integrated with LED indicators and system logging |
| Power Supply | Supplied via system backplane (24 VDC nominal) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Approvals/Certifications | CE, UL, cUL, RoHS, CSA |
| Dimensions (H x W x D) | 135 × 186 × 119 mm |
| Weight | 2.9 kg |
Product Applications
The ABB PM864AK02 (3BSE018164R2) is ideal for high-demand industrial applications where redundancy, reliability, and scalability are critical. Its design and performance make it applicable in:
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Oil and Gas Processing Plants – Monitoring and controlling real-time upstream/downstream operations
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Power Generation Facilities – Turbine control, substation automation, load balancing
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Chemical and Petrochemical Industries – Continuous and batch process regulation
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Water and Wastewater Treatment Plants – Pump control, filtration monitoring, system failover
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Pulp and Paper Manufacturing – Process automation, quality control, system diagnostics
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Mining and Metal Processing – Furnace control, material handling, environmental monitoring
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Pharmaceutical Production – Regulatory-compliant, precision control with redundancy
The module ensures safe operation, even in environments where continuous system availability is non-negotiable.
Product Advantages
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Redundancy with Seamless Failover
Supports hot-redundant CPU configurations, enabling uninterrupted control system operations during hardware failures. -
Robust Performance Under Load
Equipped with a high-speed processor and large memory to handle complex logic, data processing, and communication tasks. -
Wide Protocol Compatibility
Offers multiple industrial communication standards, enabling integration with field devices and enterprise systems. -
Real-Time Diagnostics
Built-in error detection, system health monitoring, and LED status indicators simplify maintenance and troubleshooting. -
System Flexibility and Scalability
Fully compatible with ABB’s modular AC 800M platform and supports system expansion with minimal engineering effort. -
Longevity and Global Support
Backed by ABB’s worldwide technical support and long product lifecycle strategy for mission-critical applications.
Frequently Asked Questions (FAQ)
1. What systems are compatible with the PM864AK02 3BSE018164R2?
It is designed for ABB’s AC 800M and fully supports integration into the 800xA DCS platform.
2. Can this unit be configured in a redundant setup?
Yes, it fully supports CPU redundancy via CEX-Bus, allowing hot-swappable redundancy configurations.
3. How is the processor programmed?
It is programmed using ABB’s Control Builder M software through Ethernet-based engineering stations.
4. What fieldbuses does it support?
It supports Modbus, PROFIBUS, PROFINET, OPC, TCP/IP, and IEC 61850 via compatible communication interfaces.
5. Is the real-time clock maintained during power loss?
Yes, it has a battery-backed real-time clock that retains accurate timing information during outages.
6. What is the maximum memory available?
It includes 32 MB Flash memory and 16 MB DRAM, ideal for large and complex applications.
7. Can it be used in hazardous environments?
The module itself is not Ex-rated but can be installed within approved enclosures as part of certified systems.
8. How is firmware updated?
Firmware can be updated via ABB’s Control Builder or FTP service over the Ethernet connection.
9. Is the processor module hot-swappable?
For safety and redundancy reliability, it is recommended to shut down the system before replacement unless redundant setup is active.
10. What is the expected service life of the module?
The module is designed for long-term industrial use, with an expected operational lifespan exceeding 10 years under normal conditions.
Related Models from the Same Series or Category
| Model | Part Number | Description |
|---|---|---|
| PM864AK01 | 3BSE018161R1 | Redundant CPU with earlier hardware revision |
| PM865K01 | 3BSE031151R1 | Advanced redundant CPU with extended memory |
| PM867K01 | 3BSE043660R1 | High-end redundant CPU for large systems |
| PM891K01 | 3BSE053241R1 | Next-gen CPU for advanced applications |
| PM851K01 | 3BSE018168R1 | Entry-level CPU for smaller systems |
| PM856K01 | 3BSE018173R1 | Mid-range CPU with real-time clock and diagnostics |
Popular Models from the Same Brand (ABB)
| Model | Part Number | Description |
|---|---|---|
| CI854AK01 | 3BSE030220R1 | PROFIBUS-DP Communication Interface for AC 800M |
| AI810 | 3BSE008516R1 | 8-channel Analog Input Module |
| DI820 | 3BSE008512R1 | 16-channel Digital Input Module |
| DO810 | 3BSE008510R1 | 16-channel Digital Output Module |
| CI860K01 | 3BSE032444R1 | IEC 61850 Communication Interface Module |
| CI871K01 | 3BSE056767R1 | PROFINET Communication Module |
