ABB PM862AK01 – AC 800M Processor Unit
ABB PM862AK01 – AC 800M Processor Unit - Image 2
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ABB PM862AK01 – AC 800M Processor Unit

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Description

ABB PM862AK01 – AC 800M Processor Unit

 

Product Brand, Model & Title

Field Information
Brand ABB
Model PM862AK01
Ordering Number / Part Code 3BSE076940R1
Product Title AC 800M Processor Unit / High-Performance Controller
Platform ABB Ability™ System 800xA / AC 800M Controller Series

 

Product Description

The ABB PM862AK01 is a high-performance Processor Unit designed for the ABB AC800M controller platform, a key component of the System 800xA distributed control system (DCS) . It serves as the central processing unit in industrial process control applications, executing control logic, managing communication networks, and coordinating I/O operations. The controller is engineered for critical applications requiring high availability and robust performance, with native support for CPU, communication interface, and S800 I/O redundancy .

The CPU board integrates the microprocessor, RAM memory, a real-time clock, LED status indicators, an INIT push button, and a CompactFlash interface for application storage . The unit mounts on a TP830 base plate, which provides the necessary bus interfaces and unique Ethernet hardware address for network identity .

PM862AK01

Technical Specifications

Parameter Category Specification Details
Processor & Memory Microprocessor MPC866 (implied by AC800M family)
RAM Memory 64 MB (with battery backup)
Storage CompactFlash interface
Communication Interfaces Ethernet Ports 2 x RJ45 (CN1, CN2) for Control Network
Serial Ports 1 x COM3 (RS-232C, with modem control signals)
1 x COM4 (Isolated, for configuration tool)
System Buses CEX-Bus, ModuleBus, RCPU-Link (for redundancy)
Power Input Voltage 24 V DC (via system power supply or base unit)
Isolation 500V AC between field bus and logic
Environmental Operating Temperature 0°C to +55°C (typical for AC800M)
Relative Humidity 5 to 95% (non-condensing)
Physical & Mounting Mounting DIN rail with slide & lock mechanism
Base Plate TP830
Certification Safety & Security Designed to meet industrial standards (ISA Secure certified, where applicable)

 

Key Features and Advantages

  • High-Availability Redundancy: Supports CPU redundancy (via RCPU-Link), as well as redundant communication interfaces and S800 I/O, ensuring continuous process operation even in fault conditions .
  • Robust and Reliable Design: Built for industrial environments with a wide operating temperature range, EMI/RFI shielding, and a rugged DIN-rail mountable housing.
  • Flexible Connectivity: Dual Ethernet ports and serial ports provide versatile integration options for control networks and configuration tools .
  • Easy Installation & Maintenance: Features a unique slide & lock mechanism for simple DIN rail attachment/detachment, and LED indicators for quick status diagnosis .
  • Hardware Identity: Each base plate is provided with a unique Ethernet address, ensuring every CPU has a distinct hardware identity for network management .
  • Seamless System Integration: Fully integrated with ABB System 800xA, providing a unified engineering and operations environment for the entire automation lifecycle.

 

Application Areas

The PM862AK01 is deployed across industries where reliable, continuous process control is critical:

  • Oil & Gas: Offshore platforms, refineries, and pipeline management.
  • Chemical & Petrochemical: Reactor control, batch processing, and safety instrumented systems (SIS).
  • Power Generation: Turbine and boiler control, plant-wide balance of plant.
  • Manufacturing: Advanced automation lines, material handling, and quality control.
  • Water/Wastewater: Pumping stations, filtration control, and distribution network management.

Its design makes it particularly suitable for SIL-compliant (Safety Integrity Level) applications requiring fault-tolerant control.

 

Related Product Recommendations

Product Category Recommended Product / Series Relation to PM862AK01
Controller Family ABB AC800M series (e.g., PM851, PM866) Alternative CPU units with different performance points.
Redundancy Kit PM862K01-based Redundant Processor Unit Kit For deploying in a hot-standby redundancy configuration.
Communication Interfaces CI854, CI856, etc. Additional communication interface modules to expand network connectivity.
I/O Systems S800 I/O series (e.g., AI810, AO810) The primary I/O system connected via ModuleBus or CEX-Bus.
Software & Engineering ABB Ability™ System 800xA The engineering and operation platform where the controller is configured.
Base Plate TP830 Base Plate The specific base plate that houses the PM862 controller .

 

Installation and Maintenance

Installation Guidelines

  • Mounting: Attach the PM862AK01 to the TP830 base plate and secure it on a DIN rail using the slide & lock mechanism .
  • Wiring: Connect the 24 VDC power supply, Ethernet cables for the control network, and serial cables for configuration tools to the designated ports on the base plate.
  • Configuration: Use the isolated COM4 serial port to connect a configuration tool (e.g., a laptop with Control Builder) for initial setup and application download .
  • Redundancy Setup: For redundant configurations, ensure proper cabling for the RCPU-Link and synchronization between the primary and backup controllers.
  • System Compatibility: The controller requires System 800xA 6.0.2 and Compact Control Builder 6.0.0-1 or later for proper operation .

Maintenance Best Practices

  • Firmware Updates: Regularly check for and apply firmware updates from ABB to ensure optimal performance and security.
  • Battery Replacement: Monitor the status of the internal battery for RAM backup. Replace it according to the manufacturer’s schedule to prevent data loss on power failure.
  • Diagnostics: Leverage the LED indicators and diagnostic software within System 800xA for proactive health monitoring and fault diagnosis.
  • Spare Parts: Keep a spare unit on hand for critical systems. Its hot-swap capability allows for replacement without shutting down the entire control system.
  • Environmental Control: Ensure the installation cabinet maintains appropriate temperature and is free from excessive dust, moisture, and vibration to prolong the unit’s lifespan.

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