ABB PM891K01 3BSE053241R1 Processor Unit for AC 800M

ABB PM891K01 Processor Unit

The PM891K01 (ABB part number 3BSE053241R1) is a high-performance processor unit for the AC 800M controller family. This CPU module delivers powerful computing for complex industrial automation and process control applications.

Technical Specifications

• Brand & Model: ABB PM891K01 (3BSE053241R1)
• Product Type: Processor Unit (CPU) for AC 800M Controller
• Processor: MPC8270 running at 450 MHz
• Memory: 256 MB RAM (208.985 MB available for application)
• Performance: Executes 1000 Boolean operations in 0.043 ms
• Power Supply: 24 V DC (19.2-30 V DC range)
• Software Compatibility: For use with ABB 800xA system version 6.0.2 and later

Processing & System Architecture

• Clock Frequency: 450 MHz for fast control execution
• Application Capacity: Supports up to 32 applications per controller
• Task Management: 32 tasks with 32 different cycle times
• Program Structure: 64 programs per application, 128 diagrams per application
• Minimum Cycle Time: Down to 1 ms for high-speed control loops
• Firmware Storage: 16 MB Flash PROM

Communication & Networking

• Ethernet Channels: 2 integrated 10/100 Mbit/s ports
• Control Network: MMS and IAC protocols over recommended 100 Mbit/s switched Ethernet
• Service Port: 1 x RS-232C interface (COM4) at 9600 baud for service tools
• CEX Bus: Supports up to 12 communication modules
• Event Handling: Queue for up to 3000 OPC events

I/O & Expansion Capacity

• Modulebus I/O Clusters: 0 electrical + 7 optical clusters (non-redundant)
• Max I/O Modules: Up to 84 modules on Modulebus
• Modulebus Scan Rate: Configurable from 0 to 100 ms
• CEX Bus Current: Maximum 2.4 A supply
• Modulebus Current: 24V: max 1.0 A, 5V: max 1.5 A

Power & Electrical Characteristics

• Power Consumption: 660 mA typical / 750 mA maximum at 24V DC
• Power Dissipation: 15.8 W typical (18 W max)
• Redundant Power Input: Yes, with status monitoring
• Backup Battery: No internal battery; uses super capacitor for memory retention
• Clock Synchronization: 1 ms accuracy between controllers via CNCP

Physical & Environmental Specifications

• Dimensions (HxWxD): 186 x 174 x 94 mm (7.32" x 6.85" x 3.70")
• Weight: 1.6 kg (3.5 lbs) including base
• Operating Temperature: 0 to +55 °C (+32 to +131 °F)
• Storage Temperature: -40 to +70 °C (-40 to +158 °F)
• Humidity: 5 to 95% non-condensing
• Protection Rating: IP20 according to EN 60529
• Altitude: Up to 2000 m (6562 ft)
• Corrosion Protection: G3 compliant to ISA 71.04

Certifications & Compliance

• Safety Standards: EN 50178, IEC 61131-2, UL 61010-1
• Hazardous Location: UL/cULus Class 1, Zone 2, AEx nA IIC T4
• Marine Certificates: ABS, BV, DNV-GL, LR
• EMC: EN 61000-6-4 (Emission), EN 61000-6-2 (Immunity)
• RoHS & WEEE: Compliant with EN 50581:2012 and EU Directive 2012/19/EU
• CE Mark: Yes

Package Contents

• PM891 CPU Module
• TB850, CEX-bus terminator
• TB853, RCU Control Link Terminator
• Please note: No software license is included in the hardware package.

Packaging & Shipping

• The PM891K01 processor unit ships as a complete package.
• All listed components are included in the box.
• Secure industrial packaging ensures safe transit.
• Worldwide express shipping via FedEx, UPS, and DHL available.

Frequently Asked Questions (FAQ)

• What system is this compatible with? It is designed for the ABB AC 800M controller platform and requires 800xA system software version 6.0.2 or newer.
• What is the performance rating? It has a high performance of 0.043 ms per 1000 Boolean operations.
• Does it support redundancy? No, this specific unit (PM891K01) is a non-redundant CPU module.
• How many Ethernet ports does it have? It has two 10/100 Mbit/s Ethernet ports for control and engineering networks.
• Is a license included? No, the hardware package does not include a software license. A separate license for 800xA is required.
• What is the main memory? It features 256 MB of RAM, with approximately 209 MB available for user applications.
• Can it be used in harsh environments? Yes, with its wide temperature range and industrial certifications (Zone 2, marine), it is suitable for demanding applications.

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