Description

The ABB PM860 (3BSE018110R1) is a high-performance central processing unit module designed for the AC 800M controller platform. Operating as the core computing engine within distributed control systems (DCS) and high-tier process automation environments, this processor module executes complex control loops, processes logic commands, and manages robust communications. Built with a compact and rugged form factor, the module seats securely onto its corresponding baseplate assembly to enable modular scalability and rapid integration into industrial automation frameworks. This product is an Original equipment component intended for system expansion, spare deployment, or critical operational maintenance within specialized processing plants.

Features

• Powered by a reliable MPC860 Microprocessor operating at a clock speed of 48 MHz.
• Equipped with 8 MB of high-speed SDRAM along with 2 MB of Flash PROM for persistent firmware storage.
• Includes an integrated Compact Flash interface that supports the direct loading of controller applications and cold retain data storage.
• Supports direct electrical connectivity for up to 12 S800 I/O units via the on-board electrical ModuleBus.
• Built-in communication ports including dual Ethernet connections for secure network integration and serial interfaces for diagnostic maintenance.

Applications

The PM860 processor module serves as a reliable computing node across numerous hardware topologies:

• Control Systems 800xA: Deployed as a primary automation controller running AC 800M hardware revisions to coordinate field network communication and plant-wide control loops.
• Compact Product Suite: Serves as the processing foundation for stand-alone or distributed process architectures requiring robust, mid-to-high level application execution.
• Industrial Process Control: Optimized for deployment in environments such as chemical production, power generation, water treatment, and manufacturing infrastructure.

Technical Specifications

On-Board Interfaces and Communication Ports

• CN1 and CN2 (Ethernet Ports): RJ45 ports supporting 10 Mbit per second half-duplex communication adhering to the IEEE 802.3 10Base-T specification.
• COM3 (Serial Communication): RJ45 port featuring RS-232C signal levels with full modem support, selectable from 75 to 19200 baud.
• COM4 (Serial Service Port): RJ45 port running at a fixed 9600 baud rate with RS-232C signal levels, specifically reserved for service tool access.
• Electrical ModuleBus: Supports 1 x S800 I/O base cluster accommodating up to 12 S800 I/O units, providing a maximum 24 V (1.0 A) and 5 V (1.5 A) supply current.
• CEX-Bus Expansion: Enables additional communication possibilities with capacity for up to 12 communication interface units.

Installation Guidelines

• Baseplate Engagement: Align the mechanical keys of the PM860 processor module with the pre-set factory Alpha codes on the TP830 baseplate prior to seating to ensure compatibility and protect structural contact traces.
• Bus Alignment: Slide the adjacent baseplate modules together gently to secure uniform connectivity across the ModuleBus and CEX-Bus backplane links.
• Power Supply Landing: Terminate the primary 24 V DC input onto the four-pin screw-terminal power plug landing at lines L+ and L-, and establish status loop paths through the SA and SB terminal lines if redundant configurations are utilized.
• Memory Protection: Ensure an internal or external battery backup unit (such as the SB821) is adequately connected to safe-keep volatile memory and configurations during sudden power disruption events.