ABB PM851AK01 3BSE066485R1 Processor Unit

General Info

• Article Number: 3BSE066485R1 (PM851AK01)
• Redundancy: No
• High Integrity: No
• Clock Frequency: 24 MHz
• Performance: 0.46 ms for 1000 boolean operations
• Memory:
  • Total: 12 MB (from 800xA 5.1 FP4)
  • Available for application: 6.253 MB (from 800xA 5.1 FP4)
  • Flash storage: Yes

Processor and Cycle Time

• Processor Type: MPC860
• Cycle Time per Application Programs: Down to 1 ms
• Flash PROM for Firmware Storage: 2 MB

Power and Backup

• Power Supply: 24 V DC (19.2–30 V d.c.)
• Power Consumption:
  • Typ: 180 mA
  • Max: 300 mA
• Power Dissipation: 4.32 W (7.2 W max)
• Built-in Back-up Battery: Lithium, 3.6 V
• Redundant Power Supply Status Input: Yes

Networking and Communication

• Clock Synchronization: 1 ms between AC 800M controllers via CNCP protocol
• Ethernet Channels: 1, 10 Mbit/s (RJ-45)
• Control Network Protocol: MMS and IAC
• Recommended Control Network Backbone: 100 Mbit/s switched Ethernet
• RS-232C Interfaces: 2 (one general, 1 for service tool)
• RS-232C Interface (COM3): Full RTS-CTS support
• RS-232C Interface (COM4): Opto isolated, no RTS-CTS support

Event Handling

• Event Queue per OPC Client: Up to 3000 events
• AC 800M Transmission Speed to OPC Server:
  • 36–86 events/sec
  • 113–143 data messages/sec

I/O and Clusters

• I/O Clusters on Modulebus:
  • Non-redundant CPU: 1 electrical, 1 optical
  • Redundant CPU: Not applicable
• I/O Capacity on Modulebus: Max 24 I/O modules
• Modulebus Scan Rate: 0–100 ms (depends on number of I/O modules)

Environmental and Certification

• Operating Temperature: +5 to +55°C (+41 to +131°F)
• Storage Temperature: -40 to +70°C (-40 to +158°F)
• Relative Humidity: 5–95%, non-condensing
• Pollution Degree: Degree 2 according to IEC/EN 61131-2
• Corrosion Protection: G3 compliant (ISA 71.04)
• Vibration:
  • 10–50 Hz: 0.0375 mm amplitude
  • 50–150 Hz: 0.5 g acceleration
  • 5–500 Hz: 0.2 g acceleration
• Protection Class: IP20 (EN 60529, IEC 529)
• Altitude: 2000 m (IEC/EN 61131-2)
• CE Mark: Yes
• Marine Certificates: ABS, BV, DNV-GL, LR
• RoHS Compliance: EN 50581:2012
• WEEE Compliance: DIRECTIVE/2012/19/EU

Safety and Certification

• Electrical Safety: EN 50178, IEC 61131-2, UL 61010-1, UL 61010-2-201
• Hazardous Location: cULus Class 1, Zone 2, AEx nA IIC T4, ExnA IIC T4Gc X

Dimensions

• Width: 119 mm (4.7 in)
• Height: 186 mm (7.3 in)
• Depth: 135 mm (5.3 in)
• Weight: 1100 g (2.4 lbs)