ABB PM866AK01 3BSE076939R1 Processor Unit
High-Performance Controller for AC800M Automation Systems
Overview
The ABB PM866AK01 (product code: 3BSE076939R1) is a high-performance processor unit designed for use in ABB's AC800M controller family. This powerful CPU module serves as the core processing unit for industrial automation systems, providing exceptional computing power, reliability, and flexibility for complex control applications.
Manufactured by ABB, a global leader in industrial automation and power technologies, the PM866AK01 is designed to meet the demanding requirements of modern industrial environments. It is part of the AC800M family of rail-mounted modules that includes CPUs, communication modules, power supply modules, and various accessories.
This processor unit is specifically engineered for applications requiring high processing power and fast response times, making it ideal for process control, manufacturing automation, and other critical industrial applications.
Technical Specifications
| Product Code | 3BSE076939R1 |
| Product Type | Processor Unit (CPU) |
| Manufacturer | ABB |
| Country of Origin | Sweden / Germany / Finland |
| Processor | MPC866, 133 MHz |
| Memory | 64 MB total, 51.389 MB available for applications |
| Flash Memory | 4 MB for firmware storage |
| Performance | 1000 boolean operations in 0.09 ms |
| Ethernet Ports | 2 x RJ45 (CN1, CN2), 10 Mbit/s |
| Serial Ports | 2 x RJ45 (COM3, COM4) |
| COM3 Port | RS-232C with modem control signals |
| COM4 Port | Isolated port for configuration tools |
| I/O Capacity | Up to 96 I/O modules (single configuration) |
| Redundant I/O Capacity | Up to 84 I/O modules (redundant configuration) |
| Module Bus Scan Rate | 0-100 ms (depending on number of I/O modules) |
| Power Supply | 24 V DC (19.2 - 30 V DC) |
| Power Consumption | 210 mA typical, 360 mA maximum |
| Power Dissipation | 5.1 W typical, 8.6 W maximum |
| Operating Temperature | +5°C to +55°C (+41°F to +131°F) |
| Storage Temperature | -40°C to +70°C (-40°F to +158°F) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Protection Rating | IP20 |
| Dimensions | 160 mm width x 110 mm height x 60 mm depth |
| Weight | 1.5 kg |
Key Features
High Performance Processing
Equipped with a powerful 133 MHz MPC866 processor capable of executing 1000 boolean operations in just 0.09 ms, ensuring fast response times for critical control applications.
Ample Memory Capacity
64 MB total memory with 51.389 MB available for application programs, supporting complex control algorithms and data processing requirements.
Flexible Communication
Two Ethernet ports and two serial ports provide versatile connectivity options for integration with various industrial networks and devices.
Modular Expansion
Supports up to 96 I/O modules in a single configuration, allowing for flexible system expansion to meet changing application requirements.
Industrial-Grade Reliability
Designed to operate in harsh industrial environments with wide temperature ranges, vibration resistance, and IP20 protection rating.
Easy Installation & Maintenance
Features ABB's unique Slide & Lock mechanism for simple DIN rail mounting and removal, facilitating quick installation and maintenance procedures.
LED Status Indicators
Comprehensive LED indicators provide clear visual feedback of the module's operational status, simplifying troubleshooting and diagnostics.
INIT Push Button
Convenient reset button allows for easy restart of the controller when necessary, facilitating maintenance and troubleshooting procedures.
Compact Flash Interface
Built-in Compact Flash slot provides additional storage capacity for application programs, data logging, and configuration files.
Applications
Industrial Automation
The PM866AK01 processor unit is widely used in various industrial automation applications, providing reliable control and monitoring capabilities for complex processes and production lines.
Key Application Areas
- Process Control - Chemical, petrochemical, pharmaceutical, and food processing industries
- Power Generation - Control systems for thermal, hydroelectric, and renewable energy power plants
- Manufacturing - Automotive, electronics, and consumer goods production lines
- Water & Wastewater - Treatment plants and distribution systems
- Oil & Gas - Upstream, midstream, and downstream operations
- Mining & Metals - Extraction, processing, and refining operations
- Building Automation - HVAC, lighting, and security systems in large commercial buildings
Application Benefits
Improved Process Efficiency
High-speed processing enables precise control algorithms that optimize process parameters, reducing energy consumption and improving product quality.
Enhanced System Availability
Robust design and optional redundancy capabilities minimize downtime, ensuring continuous operation of critical industrial processes.
Scalable Architecture
Modular design allows for system expansion as requirements change, protecting initial investment and supporting future growth.
Simplified Integration
Multiple communication interfaces facilitate seamless integration with existing systems and third-party equipment.
Technical Details
Processor Architecture
The PM866AK01 is based on the PowerPC MPC866 processor architecture, which provides a balance of performance and power efficiency. The 133 MHz clock speed ensures fast execution of control algorithms and data processing tasks.
Memory Organization
The module features 64 MB of total memory, with 51.389 MB available for application programs. This memory is used for:
- Control program storage and execution
- Data tables and process variables
- Communication buffers
- Temporary storage for calculations
Communication Capabilities
The PM866AK01 supports multiple communication protocols and interfaces:
- Ethernet - IEEE 802.3, 10 Mbit/s
- Serial Communication - RS-232C with modem control
- Module Bus - For connecting I/O modules
- CEX-Bus - For redundant configurations
Programming Support
The PM866AK01 supports programming according to IEC 61131-3 standard, including:
- Function Block Diagram (FBD)
- Ladder Diagram (LD)
- Structured Text (ST)
- Instruction List (IL)
- Sequential Function Chart (SFC)
Installation & Configuration
Mounting
The PM866AK01 uses ABB's unique Slide & Lock mechanism for DIN rail mounting. This system provides:
- Quick and secure attachment to standard DIN rails
- Tool-less removal for maintenance
- Secure retention even in high-vibration environments
Wiring Guidelines
Follow these guidelines for proper wiring:
- Use shielded cables for communication connections
- Connect cable shields to ground at one end only
- Use appropriate wire gauges based on current requirements
- Ensure proper strain relief for all connections
- Follow local electrical codes and regulations
Configuration Steps
- Mount the processor unit on a DIN rail
- Connect power supply (24 V DC)
- Connect communication cables (Ethernet, serial)
- Install I/O modules and connect to the module bus
- Power up the system
- Configure the controller using ABB's engineering software
- Download the application program
- Test the system functionality
Maintenance & Troubleshooting
Recommended Maintenance
- Periodic visual inspection of connections and components
- Firmware updates when available from ABB
- Battery replacement for memory backup (if applicable)
- Cleaning of ventilation openings to prevent overheating
- Backup of configuration and application programs
LED Status Indicators
| LED | Color | Status | Meaning |
|---|---|---|---|
| PWR | Green | On | Power is applied |
| RUN | Green | Flashing | Application is running |
| ERR | Red | On | Error detected |
| COM | Yellow | Flashing | Communication activity |
Common Troubleshooting
| Issue | Possible Causes | Solutions |
|---|---|---|
| No power (PWR LED off) | Power supply issue, faulty wiring, blown fuse | Check power supply voltage, inspect wiring, replace fuse if necessary |
| RUN LED not flashing | Application not loaded, configuration error, processor fault | Download application, check configuration, reset processor |
| ERR LED on | Internal error, memory fault, over-temperature | Check error logs, reset processor, check cooling |
| Communication issues | Network configuration, faulty cables, address conflicts | Check network settings, test cables, verify addresses |
| I/O modules not responding | Module bus fault, power issues, module configuration | Check module bus connections, verify power, inspect modules |
Documentation & Support
Available Documentation
- User Manual
- Technical Data Sheet
- Installation Guide
- Configuration Handbook
- Programming Reference
- Troubleshooting Guide
ABB Support Services
ABB offers comprehensive support for the PM866AK01 processor unit:
- Technical support hotline
- Online knowledge base
- Remote assistance
- Factory repair services
- Training courses
- Spare parts supply
ABB PM866AK01 3BSE076939R1 Processor Unit
This document contains comprehensive information for industrial equipment integration and maintenance.
