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Product Introduction
The ABB PM865K01 / PM865AK01 (3BSE031151R1) is a high-performance redundant-capable processor unit designed for use within the ABB AC 800M control system, a core component of ABB’s widely deployed 800xA Distributed Control System (DCS). Built to serve demanding industrial applications, this processor provides powerful real-time control, advanced redundancy capabilities, and versatile communication options, making it a reliable choice for continuous and batch process automation.
Equipped with an expanded memory footprint and high-speed processing capabilities, the PM865K01 excels in applications where system uptime, scalability, and real-time performance are non-negotiable. It supports multiple I/O and communication protocols and is engineered to integrate seamlessly with ABB’s I/O and interface modules, ensuring system-wide consistency and performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Processor Unit |
| Model | PM865K01 / PM865AK01 |
| Order Code | 3BSE031151R1 |
| Processor Type | High-speed RISC microprocessor |
| System Platform | ABB AC 800M, 800xA |
| CPU Redundancy Support | Yes (hot-redundant capability via CEX-Bus) |
| Memory | 64 MB Flash memory, 32 MB DRAM |
| Non-Volatile Memory | Yes |
| Real-Time Clock | Yes, with battery backup |
| Communication Ports | 2 x Ethernet (RJ45), 1 x RS-232, 1 x CEX-Bus |
| Supported Protocols | TCP/IP, MODBUS, PROFIBUS, OPC, IEC 61850, PROFINET |
| I/O System Compatibility | S800 I/O |
| Diagnostics | Integrated LED indicators and status monitoring |
| Firmware Upgradeability | Yes, via Control Builder M |
| Power Supply | Via backplane (nominal 24 VDC) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 5% to 95% (non-condensing) |
| Certifications | CE, UL, cUL, RoHS, CSA |
| Dimensions (H x W x D) | 135 × 186 × 119 mm |
| Weight | 1.2 kg |
Product Applications
The PM865K01 / PM865AK01 processor is engineered for critical control functions in complex industrial systems. It is highly effective in:
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Power Generation – Supervisory control, substation automation, load balancing
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Petrochemical and Refining – Continuous process control, SCADA integration
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Water and Wastewater – Pumping systems, water quality monitoring, redundancy management
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Pulp and Paper – Batch processing, quality tracking, safety interlocks
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Metals and Mining – Furnace control, ore processing, conveyor automation
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Pharmaceutical Manufacturing – Batch compliance, system validation, FDA-regulated process control
The module’s scalability and reliability make it suitable for both centralized and distributed control environments.
Product Advantages
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Enhanced Redundancy Performance
Supports hot-redundant configurations that enable seamless failover during CPU failure, minimizing downtime. -
High Memory Capacity
With 64 MB of Flash and 32 MB DRAM, it supports complex logic execution and large-scale control strategies. -
Flexible Communication Options
Multi-protocol support allows integration with numerous field devices and enterprise-level systems. -
Long-Term Stability
Engineered for 24/7 operation in harsh industrial environments, ensuring sustained reliability. -
Comprehensive Diagnostics
Provides real-time system monitoring through diagnostic LEDs and system logs, enhancing maintainability. -
Backward and Forward Compatibility
Easily integrates with other ABB modules, reducing migration complexity for upgrades or expansions.
Frequently Asked Questions (FAQ)
1. What control system does the PM865K01 / PM865AK01 belong to?
It is a central controller within ABB’s AC 800M platform and integrates seamlessly with the 800xA DCS environment.
2. Does the processor support redundancy?
Yes, it fully supports hot-redundant configurations through the CEX-Bus interface, ensuring high availability.
3. What is the difference between PM865K01 and PM865AK01?
They are part of the same processor family; the “AK01” revision may reflect regional packaging or kit version, while the core functionality remains the same.
4. How is the processor programmed?
Programming is done through ABB’s Control Builder M engineering tool, using Ethernet or serial interfaces.
5. What I/O systems are supported?
The processor is compatible with ABB’s S800 I/O modules for analog, digital, and specialty signal handling.
6. Can it support IEC 61850 for substation automation?
Yes, with the appropriate CI module, it supports IEC 61850, making it suitable for electrical substations.
7. Is the firmware upgradable?
Yes, firmware can be upgraded through ABB’s engineering tools, typically via Ethernet.
8. How is redundancy achieved between two PM865 units?
Redundancy is established using the CEX-Bus redundancy link, which synchronizes the two CPUs in real time.
9. What happens during a power failure?
The processor retains critical data and recovers automatically upon power restoration, with battery-backed RTC.
10. How long is the expected lifespan of this processor?
With proper environmental conditions, it is designed to operate reliably for over 10 years in continuous use.
Related Models from the Same Series
| Model | Part Number | Description |
|---|---|---|
| PM864AK02 | 3BSE018164R2 | Redundant-capable processor with 32 MB DRAM |
| PM867K01 | 3BSE043660R1 | High-performance CPU for large-scale systems |
| PM860K01 | 3BSE018100R1 | Mid-range CPU with redundancy support |
| PM856K01 | 3BSE018173R1 | Processor unit for moderate-size applications |
| PM891K01 | 3BSE053241R1 | Latest generation processor for complex systems |
| PM851K01 | 3BSE018168R1 | Entry-level processor for basic control functions |
Popular ABB Models from the Same Brand
| Model | Part Number | Description |
|---|---|---|
| CI854AK01 | 3BSE030220R1 | PROFIBUS-DP interface module for AC 800M |
| AI810 | 3BSE008516R1 | Analog input module (8 channels) |
| DI820 | 3BSE008512R1 | Digital input module (16 channels) |
| DO810 | 3BSE008510R1 | Digital output module (16 channels) |
| CI860K01 | 3BSE032444R1 | IEC 61850 communication interface module |
| CI871K01 | 3BSE056767R1 | PROFINET communication interface |
