Here’s a breakdown of the ABB PM891K01 (3BSE053241R1):

• Type: Processor Unit for ABB AC 800M controllers.
• Clock Frequency: 450 MHz.
• Memory: 256 MB RAM, with 208.985 MB available for applications.
• Ports:
  • 2 RJ45 Ethernet ports (CN1, CN2) for Control Network.
  • 1 RJ45 serial port (COM4) for configuration tools.
• Redundancy: Supports CPU redundancy for higher availability.
• Communication:
  • CEX-Bus for extending communication interfaces.
  • Optical Modulebus for connecting S800 I/O clusters.
• Mounting: DIN-Rail installation.
• Protection: Rated IP20.
• Dimensions: 280mm (L) × 105mm (H) × 245mm (W).
• Weight: 2.1 kg.
• Classification: WEEE Category 5 (Small Equipment).
• Customs Tariff Number: 85371091.