ABB PM863K01 MPC866 Controller: High-Integrity AC 800M CPU for SIL 3 Safety

Technical Specifications Breakdown

The PM863K01 runs at a clock frequency of 96 MHz and completes 1000 boolean operations in 0.17 ms. It provides 32 MB of memory, with 22.184 MB available for the application. The processor type is MPC866. Power supply is 24 V DC (19.2-30 V DC), with typical consumption of 210 mA and maximum 360 mA. Power dissipation is 5.1 W typical, 8.6 W max. The controller supports up to 32 applications, 64 programs per application, and 128 diagrams per application. It offers two Ethernet channels using MMS and IAC protocols over a recommended 100 Mbit/s switched Ethernet backbone.

Industry Applications

In oil and gas, chemical, or power generation environments, the PM863K01 provides a TÜV-certified control environment for combining safety and business-critical process control. Its high-integrity functionality, enabled by the SM812 module, allows non-critical control schemes to be upgraded to SIL-certified schemes. The controller supports S800 I/O High Integrity and can be configured with 800xA control builder. For applications requiring CPU redundancy, the PM863K01 supports redundant CPU configurations for higher availability.

Installation & Setup Guidance

Mount the PM863K01 in a suitable cabinet with IP20 protection. Connect the two RJ45 Ethernet ports (CN1, CN2) to the Control Network. Use COM3 (RS-232C, 75-19 200 baud) for general serial communication with full RTS-CTS support. COM4 (RS-232C, 9 600 baud) is opto-isolated for configuration tool connection. Ensure power supply voltage stays within 19.2-30 V DC. Follow the Safety Manual for configuration when high-integrity functionality is required.

Maintenance & Reliability

The PM863K01 operates reliably from +5 to +55 °C and stores from -40 to +70 °C. It withstands vibration per IEC/EN 61131-2 and is G3 compliant for corrosion protection. The built-in lithium backup battery (3.6 V) maintains the real-time clock. Regular inspection of the CompactFlash interface and Ethernet connections is recommended. The controller has full EMC certification and is ISA Secure certified.

What Is the ABB PM863K01?

This CPU board integrates a microprocessor, RAM memory, real-time clock, LED indicators, INIT push button, and a CompactFlash interface. It forms the core of an AC 800M High-Integrity system, capable of SIL 3 certification when paired with an SM812 module and appropriate software.

Compatibility & Integration

It supports up to 12 communication modules on the CEX bus and up to 96 I/O modules on the Modulebus (single CPU) or 84 (redundant). It works with S800 I/O High Integrity modules. The controller uses MMS and IAC protocols over Ethernet. It is TÜV certified for SIL 2 and SIL 3 when used with SM812.

Selection Guide & Purchasing Advice

Before ordering the PM863K01 (article number 3BSE088381R1), verify your system's redundancy requirements. This model does not include built-in redundancy but supports redundant configurations. Confirm that your application requires high-integrity functionality. AutoDCSTech stocks this controller and can advise on compatible SM812 modules and accessories. Please verify current lifecycle status and availability with AutoDCSTech before ordering.