Products Description
ABB PM891 3BSE053240R1 AC800M Processor Unit in stock
ABB PM891 3BSE053240R1 is a high-performance processor unit of AC800M series, serving as the core controller for ABB System 800xA distributed control system. It can work in redundant configuration to guarantee continuous operation, executing control programs and processing field I/O data for process automation.
This CPU module is equipped with built-in Ethernet communication port and large memory, supporting hot swap and comprehensive self-diagnosis. It is widely adopted in critical industrial sites requiring high availability, and available as new or spare replacement parts for 800xA system upgrade and maintenance.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ABB |
| 2 | Model | PM891 3BSE053240R1 |
| 3 | Module Type | AC800M Processor Unit / CPU Module |
| 4 | Compatible System | System 800xA DCS, AC800M Controller |
| 5 | Memory | 64MB |
| 6 | Communication | Integrated Ethernet, S800 I/O bus |
| 7 | Operating Temperature | 0℃ ~ +60℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Execute control logic, sequence programs and closed-loop regulation for process control |
| 2 | Support redundant dual CPU configuration, data synchronization and seamless switchover |
| 3 | Collect and process digital & analog I/O signals from S800 I/O modules |
| 4 | Built-in hardware self-diagnosis, fault detection and alarm reporting function |
| 5 | Real-time data communication with HMI, engineering station and upper system via Ethernet |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Power plant System 800xA DCS process control and monitoring system |
| 2 | Chemical industry high reliable distributed control system project |
| 3 | Oil & gas production and refining process automation control |
| 4 | Pulp and paper, metallurgy continuous production process control |
| 5 | AC800M controller redundant upgrade and spare parts replacement |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ABB PM891 3BSE053240R1? A:It is AC800M series high-performance processor unit for ABB System800xA DCS, can run in redundant pair to execute control logic and handle field I/O data. |
| 2 | Q:Does PM891 support redundant configuration? A:Yes, two PM891 modules can form redundant controller pair. It supports state synchronization and bumpless switchover when one CPU fails. |
| 3 | Q:Which I/O modules does it match? A:It works with ABB S800 series I/O modules, communicating through S800 I/O bus for field signal acquisition and output. |
