3BSE066490R1 | ABB PM856AK01 Processor Unit

The PM856AK01 controller features a CPU board with a microprocessor, RAM, a real-time clock, LED indicators, an INIT push button, and a CompactFlash interface. It includes two RJ45 Ethernet ports (CN1, CN2) for Control Network connections and two RJ45 serial ports (COM3 for RS-232C with modem control signals and COM4 for configuration tools).

Key Features

• Reliability: Simple fault diagnosis and robust design.
• Modularity: Step-by-step expansion capability.
• Protection: IP20 Class protection; no enclosures required.
• Configuration: Compatible with 800xA control builder.
• EMC Certification: Ensures compliance with electromagnetic standards.

General Information

• Article Number: 3BSE066490R1 (PM856AK01)
• Redundancy: No
• High Integrity: No
• Clock Frequency: 24 MHz
• Performance (1000 Boolean Operations): 0.46 ms
• Memory: 16 MB (from 800xA 5.1 FP4)
• RAM Available for Application: 10.337 MB (from 800xA 5.1 FP4)
• Flash Memory for Storage: Yes

Detailed Data

• Processor Type: MPC860
• Switch Over Time in Red. Configuration: N/A
• Number of Applications per Controller: 32
• Number of Programs per Application: 64
• Number of Diagrams per Application: 128
• Number of Tasks per Controller: 32
• Different Cycle Times: 32
• Cycle Time per Application Programs: Down to 1 ms
• Flash PROM for Firmware Storage: 2 MB
• Power Supply: 24 V d.c. (19.2-30 V d.c.)
• Power Consumption +24 V Typ/Max: 180 / 300 mA
• Power Dissipation: 4.32 W (7.2 W max)
• Redundant Power Supply Status Input: Yes
• Built-in Backup Battery: Lithium, 3.6 V
• Clock Synchronization: 1 ms between AC 800M 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 single CEX bus modules
• Supply Current on CEX Bus: Max 2.4 A
• I/O Clusters on Modulebus with Non-redundant CPU: 1 electrical, 7 optical
• I/O Clusters on Modulebus with Redundant CPU: N/A
• I/O Capacity on Modulebus: Max 96 I/O modules
• Modulebus Scan Rate: 0 – 100 ms (actual time depending on the 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: Ethernet (IEEE 802.3), 10 Mbit/s, RJ-45, female (8-pole)
• 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: 100 ppm (approx. 1 h/year)
• RS-232C Interfaces: 2 (one general, one for service tool)
  • COM3: RS-232C, 75-19200 baud, RJ-45 female (8-pole), not opto-isolated, full RTS-CTS support
  • COM4: RS-232C, 9600 baud, RJ-45 female (8-pole), opto-isolated, no RTS-CTS support

Environmental and Certification Details

• Operating Temperature: +5 to +55 °C (+41 to +131 °F)
• Storage Temperature: -40 to +70 °C (-40 to +158 °F)
• Temperature Changes: 3 °C/min 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
• Emitted Noise: < 55 dB (A)
• 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: 500 V a.c.
• Dielectric Test Voltage: 50 V
• 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: 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

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

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