ABB PM891 3BSE053240R1 AC800M Processor Unit
This ABB PM891 3BSE053240R1 is high-performance redundant CPU processor module for ABB AC800M and 800xA DCS system for critical process control.
Product Overview
The ABB PM891 with part number 3BSE053240R1 is a high-performance processor unit belonging to ABB AC800M controller series for System 800xA DCS. It supports redundant CPU operation and hot swap, executes control logic and handles field I/O data, widely used for high availability industrial automation control.
Key Features
- High-speed 32-bit RISC processor for real-time control
- Supports CPU redundancy and hot-swap maintenance
- Dual Ethernet ports for control network communication
- Large memory for complex control programs
- Comprehensive hardware diagnosis and LED status indicators
- DIN rail mounting design
- SIL2 capability for safety related applications
Works with Control Builder M programming software
Technical Specifications
- Part Number: 3BSE053240R1
- Model: PM891
- Series: AC800M Controller
- Power Supply: 24VDC (18~32VDC)
- Memory: 64MB RAM
- Communication: Dual Ethernet, serial port
- Mounting: DIN rail
- Protection: IP20
Operating Temperature: -10℃ ~ +60℃
Compatibility & Application
Compatible with ABB 800xA DCS and S800 I/O modules. Mainly used in oil & gas, chemical, power, pulp & paper industries for critical process control systems requiring high reliability.













