Description

The ABB PM891K01 is a monolithic processor unit part of the Compact Product Suite hardware. It integrates a power supply, CPU boards, and unit termination. The PM891 features a microprocessor, RAM memory, a real-time clock, LED indicators, an INIT push button, and a Secure Digital interface. Unlike other units, it does not contain an internal battery. The PM891 has two RJ45 Ethernet ports (CN1, CN2) for Control Network connections and one RJ45 serial port (COM4), which is isolated and used for configuration tools. It supports CPU redundancy for enhanced availability, including CPU, CEX-Bus, communication interfaces, and S800 I/O.

Features and Benefits

• Reliability and Simple Fault Diagnosis Procedures: Enhances system uptime and simplifies troubleshooting.
• Modularity: Allows for step-by-step system expansion.
• IP20 Class Protection: Provides adequate protection without the need for enclosures.
• Full EMC Certification: Ensures compliance with electromagnetic compatibility standards.
• High Performance and Large Application Memory: Offers robust performance for demanding applications.
• Sectioned CEX-Bus with BC810: Enhances availability by dividing the CEX-Bus into separate segments.
• Built-in Redundant Ethernet Communication Ports: Ensures reliable communication with redundancy.

General Info

• Article Number: 3BSE053241R1 (PM891K01)
• Redundancy: Yes
• High Integrity: No
• Clock Frequency: 450 MHz
• Performance: 1000 boolean operations in 0.043 ms
• Memory: 256 MB
• RAM Available for Application: 208.985 MB
• Flash Memory for Storage: Yes

Detailed Data

• Processor Type: MPC8270
• Switch Over Time in Red. Config.: Max 10 ms
• Number of Applications per Controller: 32
• Number of Programs per Application: 64
• Number of Diagrams per Application: 128
• Number of Tasks per Controller: 32
• Number of Different Cycle Times: 32
• Cycle Time per Application Programs: Down to 1 ms
• Flash PROM for Firmware Storage: 16 MB
• Power Supply: 24 V DC (19.2-30 V DC)
• Power Consumption (+24 V typ/max): 660/750 mA
• Power Dissipation: 15.8 W (18 W max)
• Redundant Power Supply Status Input: Yes
• Built-in Backup Battery: No
• Clock Synchronization: 1 ms between AC800M controllers by CNCP protocol
• Event Queue in Controller per OPC Client: Up to 3000 events
• AC 800M Transmission Speed to OPC Server: 36-86 events/sec, 113-143 data messages/sec
• Communication Modules on CEX Bus: 12
• Supply Current on CEX Bus: Max 2.4 A
• I/O Clusters on Modulebus with Non-Red. CPU: 0 electrical + 7 optical
• I/O Clusters on Modulebus with Red. CPU: 0 electrical + 7 optical
• I/O Capacity on Modulebus: Max 84 modules
• Modulebus Scan Rate: 0 - 100 ms (actual time depending on number of I/O modules)
• Supply Current on Electrical Modulebus: 24 V: max 1.0 A, 5 V: max 1.5 A
• Ethernet Channels: 2
• Ethernet Interface: 10/100 Mbit/s
• Control Network Protocol: MMS (Manufacturing Message Service) and IAC (Inter Application Communication)
• Recommended Control Network Backbone: 100 Mbit/s switched Ethernet
• Real-Time Clock Stability: 50 ppm (approx. 0.5 h/year)
• RS-232C Interface: 1 for service tool (COM4)
• RS-232C Interface (COM3): Not supported
• RS-232C Interface (COM4): RS-232C, 9 600 baud, RJ-45 female (8-pole), opto isolated, no RTS-CTS support

Environment and Certification

• Operating Temperature: +5 to +55 °C (+41 to +131 °F)
• Storage Temperature: -40 to +70 °C (-40 to +158 °F)
• Temperature Changes: 3 °C/minutes according to IEC/EN 61131-2
• Pollution Degree: Degree 2 according to IEC/EN 61131-2
• Corrosion Protection: G3 compliant to ISA 71.04
• Relative Humidity: 5 to 95 %, non-condensing
• Vibration:
  • 10 < f < 50 Hz: 0.0375 mm amplitude
  • 50 < f < 150 Hz: 0.5 g acceleration
  • 5 < f < 500 Hz: 0.2 g acceleration
• Rated Isolation Voltage: 50 V
• Dielectric Test Voltage: 500 V a.c.
• Protection Class: IP20 according to EN 60529, IEC 529
• Altitude: 2000 m (6562 ft) according to IEC/EN 61131-2
• Emission & Immunity: EN 61000-6-4, EN 61000-6-2
• Environmental Conditions: Industrial
• CE Mark: Yes
• Electrical Safety: EN 50178, IEC 61131-2, UL 61010-1, UL 61010-2-201
• Hazardous Location: UL 60079-15, cULus Class 1, Zone 2, AEx nA IIC T4, ExnA IIC T4Gc X
• Marine Certificates: ABS, BV, DNV-GL, LR
• TUV Approval: No
• RoHS Compliance: EN 50581:2012
• WEEE Compliance: DIRECTIVE/2012/19/EU

Dimensions and Weight

• Width: 174 mm (6.85 in.)
• Height: 186 mm (7.32 in.)
• Depth: 94 mm (3.70 in.)
• Weight (including base): 1600 g (3.5 lbs)

The ABB PM891K01 processor module offers a blend of high performance, modularity, and reliability, making it a suitable choice for complex industrial control applications.