Description
The ABB PM856K01 3BSE018105R1 is the flagship controller in ABB’s AC 800M series, engineered for large-scale, mission-critical industrial automation and distributed control systems (DCS). Combining unprecedented processing power with advanced cybersecurity, this controller manages complex process control, safety integration, and IIoT connectivity across power plants, refineries, and smart infrastructure. Equipped with a dual-core 1.3 GHz processor and 64 MB user memory, the PM856K01 executes IEC 61131-3 and CFC programs deterministically at 0.05 ms scan cycles, while supporting real-time protocols like OPC UA PUB/SUB and IEC 61850-8-1. Its modular architecture integrates redundant power supplies, triple modular redundancy (TMR) options, and -40°C to +85°C operation, making it ABB’s ultimate solution for high-availability automation ecosystems.

ABB PM856K01
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | PM856K01 3BSE018105R1 |
| Manufacturer | ABB |
| Product Type | High-Performance Process Controller |
| Processor | Dual-core 64-bit @ 1.3 GHz (with hardware virtualization) |
| User Memory | 64 MB (program) / 128 MB (data) |
| I/O Capacity | Up to 16,384 process variables |
| Programming Languages | IEC 61131-3 (LD/FBD/ST/SFC) + CFC |
| Min. Scan Cycle | 0.05 ms (time-critical tasks) |
| Redundancy | TMR (Triple Modular Redundancy) support |
| Communication Ports | 4 × 1 Gbps Ethernet, 2 × USB 3.0 |
| Protocols | OPC UA, IEC 61850, MQTT, Modbus TCP, PROFINET |
| Expansion Slots | 6 (for PFEA112-20, CI871K01, etc.) |
| Operating Temperature | -40°C to +85°C (cold start -30°C) |
| Power Supply | 24 VDC (±15%) or 48 VDC redundant |
| Power Consumption | 25 W (max) |
| Housing | Aluminum alloy (IP20 rack-mount) |
| Certifications | UL 61800-3, IEC 62443-4-2 SIL 2, DNV-GL, ATEX Zone 2 |
Main Features and Advantages
Unmatched processing power: Handles 100,000+ I/O points with deterministic 0.05 ms control for turbine governing, high-speed robotics, or grid stabilization. Hardware-assisted virtualization isolates control, safety, and IT tasks on a single platform.
Military-grade resilience:
Cyber Protection: Hardware security module (HSM) with FIPS 140-3 Level 3 encryption, runtime intrusion detection, and unidirectional gateways for air-gapped networks.
Environmental Robustness: Conformal-coated PCB withstands 100% humidity, H₂S, and salt fog (ISO 9227). Vibration-resistant up to 5g (IEC 60068-2-6).
Future-ready connectivity: Native MQTT support enables seamless IIoT integration for cloud analytics. OPC UA PUB/SUB reduces network load by 70% in large-scale DCS. Hot-swappable modules allow upgrades without shutdowns.
Application Field
The ABB PM856K01 3BSE018105R1 dominates ultra-complex automation:
Power Generation: Manages entire combined-cycle plants with IEC 61850-compliant grid synchronization.
Oil & Gas Supervisory: Controls offshore FPSO safety and process systems with DNV-GL marine certification.
Smart Cities: Orchestrates water distribution, traffic control, and energy grids via MQTT cloud integration.
Pharma 4.0: Ensures FDA 21 CFR Part 11 compliance in continuous manufacturing with audit trails.
Metals Industry: Synchronizes rolling mills with 0.1 ms axis control precision.
Related Products
PM865AK01 – Mid-range controller for smaller DCS deployments.
PFEA112-65 3BSE050091R65 – Ruggedized PROFIBUS master for harsh environments.
CI871K01 3BSE056767R1 – Secure Gigabit Ethernet gateway.
SAF800F – SIL 3-certified I/O module for safety integration.
PHARPS64200000 – 6400W redundant power supply.
SD826 – 64-channel analog input module.

ABB PM856K01
Installation and Maintenance
Pre-installation preparation: Validate rack cooling (≥300 CFM airflow). Use ABB-recommended shielded CAT7 cables for Gigabit ports. Initialize HSM keys via Control Builder M+ before power-up.
Maintenance recommendations:
Predictive Maintenance: Monitor “Processor Load” and “Memory Utilization” via embedded web HMI (target <75%).
Firmware Updates: Apply cryptographically signed patches biannually using USB dongle.
Hardware Checks: Replace cooling fans every 5 years; clean air filters quarterly in dusty sites.
Redundancy Testing: Conduct semiannual TMR failover drills via ABB System 800xA Test Manager.






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