ABB PM858 3BSE093350R1 Controller Unit

Product Overview

The ABB PM858 (3BSE093350R1) is a high-performance programmable logic controller (PLC) from the AC 800M series. Known for its compact footprint and modular flexibility, this processor is a foundational element in System 800xA and Compact Control Builder architectures. It is specifically engineered to handle complex logic and communication tasks in demanding industrial automation environments.

Technical Specifications

• Manufacturer: ABB

• Article Number: 3BSE093350R1 (PM858)

• Series: AC 800M

• Clock Frequency: 33 MHz

• Memory: 16 MB (Total) / 7.147 MB (Available for applications)

• Ethernet Ports: 2x RJ45 (CN1, CN2) for Control Network

• Serial Ports: 2x RJ45 (COM3: RS-232C w/ modem signals; COM4: Isolated for service)

• Performance: 0.36 ms per 1000 boolean operations

• Redundancy: Supported (CPU, CEX-Bus, and I/O redundancy)

Key Features

• Modular and Scalable: Features a compact design that fits easily onto 35mm DIN rails using ABB's "slide & lock" mechanism, allowing for easy expansion with CEX-Bus and ModuleBus units.

• High Availability: Supports full CPU redundancy with extremely short master-slave switchover times, ensuring process continuity in the event of hardware failure.

• Versatile Programming: Fully compatible with IEC 61131-3 programming standards, including Structured Text (ST), Sequential Function Chart (SFC), and more.

• Hardware Identity: Each baseplate is assigned a unique Ethernet hardware address, simplifying network configuration and device identification.

• Industrial Resilience: Built for harsh environments, featuring a robust housing and high-quality internal circuitry for long-term stability.