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PM856AK01

Key Features
✔ Dual-CPU Redundancy

1:1 hot standby configuration

Automatic switchover (<100ms)

99.999% availability for critical processes

✔ Powerful Processing Capability

800 MHz PowerPC processor

512 MB RAM for complex control strategies

Supports 250,000 I/O points (system-wide)

✔ Industrial Communication

Dual Ethernet ports (10/100 Mbps)

Supports PROFIBUS DP, Modbus TCP, OPC UA

Optional PROFINET, FF HSE communication

✔ Robust Industrial Design

Operating temperature: -40°C to +70°C

Vibration and shock resistant

IP20 protection (higher protection optional)

✔ Cybersecurity

IEC 62443 compliant

Role-based access control

Secure firmware updates

Technical Specifications
Parameter Specification
Processor 800 MHz PowerPC
Memory 512 MB RAM / 128 MB Flash
Redundancy 1:1 hot standby
I/O Capacity Up to 250,000 points
Communication Ethernet, PROFIBUS DP, Modbus TCP
Power Supply 24V DC (redundant)
Certifications CE, UL, ATEX (optional)
Typical Applications
Oil & Gas (refineries, pipelines)

Power Generation (turbine control)

Chemical Processing (batch reactors)

Pharmaceutical (GMP manufacturing)

Water Treatment (SCADA systems)

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The ABB PM856AK01 is a fault-tolerant, redundant industrial controller from ABB's AC 800M series, designed for mission-critical process automation applications. This high-performance controller delivers ultra-reliable operation with advanced redundancy features, making it ideal for demanding industrial environments requiring continuous operation.