ABB 3BSE053240R1 PM891 Controller Unit

ABB 3BSE053240R1 PM891 is a high-performance CPU controller for ABB AC 800M and System 800xA DCS platforms. It runs control logic, 

conducts real-time data processing and handles system communication. It is a core component for process control and commonly used as replacement spare part for system maintenance.

3. Technical Specifications

• Part Number: 3BSE053240R1 / PM891
• Manufacturer: ABB
• Compatible System: AC 800M, System 800xA
• Processor: 450 MHz multi-core
• Memory: 256 MB RAM, 1 GB Flash
• Communication: Dual redundant Ethernet, configuration serial port
• Expansion: CEX-Bus, Optical Modulebus for S800 I/O
• Power Supply: 24 VDC (19.2–30 VDC)
• Operating Temperature: -20°C ~ +60°C
• Protection Grade: IP20
• Net Weight: Approx. 1.2 kg
• Certification: CE, UL, RoHS