Description

The ABB 3BSE018157R1 PM861AK01 is a quad-core safety-certified controller designed for ABB’s flagship 800xA Extended Automation System, delivering industrial-grade processing power with SIL 3 (IEC 61508) functional safety compliance. As the pinnacle of ABB’s AC 800M controller family, this module executes complex control strategies and safety functions simultaneously with deterministic 1ms cycle times. The PM861AK01 integrates four 1.8 GHz Power Architecture® processors with 4GB RAM and dual-redundant flash storage, enabling real-time analytics for predictive maintenance and advanced process optimization.

Engineered for mission-critical applications, the 3BSE018157R1 features hardware-based safety partitioning that isolates standard control (IEC 61131-3) and safety logic (Safety Builder) in a single platform. Its TÜV-certified architecture achieves a hardware fault tolerance (HFT=1) with <5ns>ABB PM861AK01 synchronizes up to 64,000 I/O points across distributed systems. The module’s rugged construction withstands extreme environments (-40°C to +70°C) with conformal-coated PCBs and vibration-resistant mounting (IEC 60068-2-6), ensuring reliability in offshore, power generation, and pharmaceutical applications.

ABB 3BSE018157R1 PM861AK01

Technical Specifications

Main Features and Advantages

Safety-Integrated Architecture: The PM861AK01 uniquely combines SIL 3 safety functions with standard control using hardware-partitioned cores. Its “Dual-Determinism” technology executes safety logic in lockstep with process control at 0.1ms resolution.

Cybersecurity Excellence: Implements hardware-trusted platform modules (TPM 2.0) for encrypted storage, role-based access control with biometric options, and automated patch management meeting NERC CIP standards.

Predictive Operations: Embedded machine learning algorithms analyze process trends using 10,000-point historian buffers, detecting anomalies like pump cavitation or valve stiction before failure.

Ultra-Fast Networking: Four independent Ethernet controllers with IEEE 1588v2 precision time protocol (PTP) achieve <100ns>

Application Field

The ABB PM861AK01 dominates safety-critical automation:

Power Distribution: Manages grid stability in substations with <2ms>

Oil & Gas: Implements safety instrumented systems (SIS) for offshore platforms with SIL 3-certified emergency shutdown logic

Pharmaceutical: Ensures FDA 21 CFR Part 11 compliance with electronic batch records and audit trail encryption

Marine: Controls dynamic positioning thrusters with Class NK certification for zero-downtime redundancy

Chemical Processing: Runs model predictive control (MPC) for reactor temperature cascades with SIL 3 interlocking

Related Products

PM865K01: High-availability CPU without safety certification

SD822: Diagnostic module for PM861AK01 health monitoring

CI871: PROFIBUS interface for legacy I/O integration

TA527: Redundant termination assembly

S900 I/O: High-density safety I/O for PM861AK01 expansion

Combi Controller: Integrated safety solution

3BSE050850R1: Power supply unit with buffered UPS support

ABB 3BSE018157R1 PM861AK01

Installation and Maintenance

Pre-installation preparation: Validate rack compatibility (800xA S+ series) and allocate dedicated cooling zones. Use ABB-approved 24VDC power stabilizers (±0.25% ripple). Pre-configure safety partitions using Control Builder Safety 6.1.

Maintenance recommendations: Perform quarterly cybersecurity audits via System 800xA Security Center. Replace cooling fans at 40,000 operational hours. Conduct full SIL verification testing biennially per IEC 61511. Maintain firmware currency through ABB Update Manager.