Description
ABB PM864AK02 Redundant Processor Unit
Executive Brief
The ABB PM864AK02, part of the AC 800M high-end controller series, is a factory-sealed original redundant processor unit designed for mission-critical industrial automation scenarios. Engineered with a 1GHz PowerPC processor and full redundancy architecture for CPU, power supply and communication links, it delivers seamless bumpless switchover upon single-point failures, eliminating unplanned downtime risks. With 32MB RAM, multi-industry protocol compatibility and compliance with IEC 61508 SIL 3 safety standards, this unit supports high-speed real-time control, complex logic execution and large-scale data processing, making it a reliable core control component for continuous operation in harsh industrial environments. All in-stock units come with a 12-month official warranty and global expedited shipping support.

PM864AK02
Core Technical Specifications
- Manufacturer: ABB (Sweden)
- Part Number: PM864AK02, Order ID: 3BSE018164R1
- Product Category: Redundant Processor Unit, Central Control Unit
- Processor: 1GHz PowerPC, multi-task parallel execution architecture
- Memory: 32MB RAM for high-efficiency data processing
- Communication Protocols: Profibus DP, Modbus, Ethernet/IP, OPC UA and other mainstream industrial protocols
- Safety Compliance: IEC 61508 SIL 3 certified
- Protection Rating: IP30, reinforced ripple aluminum casing
- Power Input: Wide DC 9-36V range, adaptive for industrial field power conditions
- Installation: Standard 35mm DIN rail mounting
- MTBF: Exceeds 200,000 hours for long-term stable operation
- Standard Package Contents: 2 sets of PM864A CPU modules, 2 units of 115mm-width TP830 baseplates, CEX-bus extension cable TK850, module bus terminator TB807, backup power connectors and dedicated battery backup modules for each CPU
- Gross Weight: Approx. 2.9kg
- Warranty: 12 months for brand new original units
Key Features & Advantages
- Full Redundancy Architecture: Dual-CPU hot backup design ensures zero-interruption system switchover when the primary unit encounters faults, realizing 24/7 non-stop operation without process disruption.
- Industry-leading Processing Performance: The 1GHz high-speed processor supports concurrent execution of multiple control tasks, capable of handling complex advanced control algorithms and massive field data in real time.
- Outstanding Environmental Adaptability: Industrial-grade rugged design with strong electromagnetic interference resistance, suitable for deployment in high-temperature, high-humidity and vibration-prone harsh industrial sites.
- High-level Built-in Security: Integrated hardware firewall and data encryption function prevent unauthorized access, effectively protecting the control system from network security threats.
- Modular Scalability: Supports flexible expansion of I/O modules and communication interfaces, allowing on-site engineers to adjust system configuration according to actual production demands, reducing overall system transformation cost.
- Low Maintenance Cost: Hot-swap supported modular structure allows engineers to replace faulty components without shutting down the whole system, greatly cutting down maintenance downtime and labor input.
- Wide Compatibility: Seamlessly connects with various field sensors, actuators and upper-layer monitoring systems, realizing unified data interaction across different industrial equipment brands.
Typical Application Scenarios
- Process Industries: Precision flow control for petrochemical, pharmaceutical manufacturing, water treatment and fine chemical production lines, ensuring continuous and stable production processes.
- Power Systems: Substation automation, thermal power plant distributed control, new energy generation unit monitoring, to guarantee the safety and reliability of power supply.
- Heavy Manufacturing: Automated production control for automotive assembly, steel rolling, papermaking and large-scale mechanical processing, supporting high-precision and high-efficiency production rhythm.
- Offshore & Energy Sectors: Control systems for offshore oil platforms, LNG terminals and remote energy stations, adapting to long-term unattended and harsh marine operating conditions.
- Building & Infrastructure Automation: Central control for large-scale commercial complexes, airport terminals and urban rail transit signal systems, ensuring stable operation of public facilities.
Related Product Model Display
- ABB PM861AK01: Mid-range processor unit for small and medium-sized automation projects, offering cost-effective non-redundant control solutions.
- ABB RLM01 (Order No. 3BDZ000398R1): Compatible alternative communication module for seamless system expansion and protocol conversion.
- ABB PM866: High-performance upgraded processor unit with larger memory and higher main frequency, for ultra-large scale complex control systems.
- ABB TP830: Dedicated 115mm-width baseplate matching PM864 series processors, providing stable mechanical installation and bus connection.
- ABB TK850: CEX-bus dedicated extension cable, realizing high-speed data interconnection between multiple controller modules.
Frequently Asked Questions
Q1: Does the PM864AK02 support hot-swap replacement during system operation?
A1: Yes, the modular design allows on-site engineers to perform hot-swap operation for individual components without shutting down the whole control system, which minimizes production downtime during maintenance.
Q2: What is the difference between PM864AK02 and ordinary non-redundant processor units?
A2: PM864AK02 adopts a complete dual-redundant configuration covering CPU, power supply and communication links. When the primary module fails, the system will automatically switch to the standby unit within milliseconds without any process interruption, which is far more reliable than single non-redundant processors for mission-critical scenarios.
Q3: Can this unit be directly connected to existing ABB AC 800M control systems?
A3: Yes, is a native member of the ABB AC 800M controller series, which can be seamlessly integrated into existing AC 800M systems without additional protocol conversion or hardware transformation.
Q4: What is the delivery cycle for in-stock units?
A4: Brand new original in-stock units can be dispatched within 1-3 working days, with global DHL/Fedex/UPS/TNT shipping options to meet urgent on-site maintenance demands.
Q5: Does the product come with official technical support?
A5: All supplied units are covered by 12-month full warranty, and we provide professional technical consultation for installation, configuration and fault diagnosis to assist engineers to complete deployment and commissioning efficiently.

