ABB PM867K01 3BSE076355R1 AC 800M High Integrity Processor Unit

The ABB PM867K01 3BSE076355R1, also cataloged as the PM867K01 High Integrity Processor Unit, operates as a dedicated hardware component for executing real-time logic and managing control network communications within ABB System 800xA networks. Running an MPC866 processor at 133 MHz with 64 MB of RAM, this unit executes control logic at 0.09 ms per 1,000 Boolean operations. It supports SIL3 high-integrity control architectures when paired with an SM812 safety module and manages data flow across local ModuleBus and CEX-Bus expansion interfaces.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Communication Velocity & Deterministic Networks

The module regulates high-speed backplane data transfer across both internal and external communication interfaces. The internal ModuleBus interface updates up to 96 I/O modules with scan rates configurable between 0 and 100 ms. For external network expansion, the module supports up to 12 CEX-Bus communication modules, supplying up to 2.4 A of bus current while preserving backplane bus communication velocity across deterministic system buses. Integrated Ethernet ports handle Control Network traffic using MMS and IAC protocols to maintain predictable loop response times.

Frequently Asked Questions

Q: How is SIL3 compliance achieved when deploying the PM867K01 processor unit?

A: High-integrity SIL3 execution requires combining the PM867K01 processor unit with an SM812 safety module and executing SIL-certified software configured according to the ABB Safety Manual guidelines.

Q: What are the backplane power supply limits for attached CEX-Bus modules?

A: The PM867K01 operates on a 24 VDC nominal supply (19.2-30 VDC range) and provides a maximum supply current of 2.4 A across the backplane to power up to 12 connected CEX-Bus communication modules.

Field Installation Guidelines

Mount the TP830 baseplate vertically onto a standard 35 mm DIN rail inside a protective enclosure, ensuring at least 50 mm of vertical clearance above and below the unit for natural convection cooling. Secure the TB807 ModuleBus terminator, TB850 CEX-Bus terminator, and TB852 RCU-Link terminator into their designated open bus end ports to prevent signal reflections across the backplane. Connect the 24 VDC power supply lines using shielded wiring, clamping the shield directly to the central functional earth bar. Insert the included 3.6 V lithium backup battery (4943013-6) while system power is applied to retain volatile application memory stored in RAM.