PM851AK01
ABB PM856AK01 Controller Unit, 24 MHz, 12 MB Memory
Overview
Description
The CPU board contains the microprocessor and RAM memory, a real-time clock, LED indicators, INIT push button, and a CompactFlash interface. The base plate of the PM851A controller has two RJ45 Ethernet ports (CN1, CN2) for connection to the Control Network, and two RJ45 serial ports (COM3, COM4).Note that a PM851/PM851A is restricted to one Ethernet (CN1) port, thus redundant Ethernet is not available.
Key Benefits
- Reliability and simple fault diagnosis procedures
- Modularity, allowing for step-by-step expansion
- IP20 Class protection without the requirement for enclosures
- The controller can be configured with System 800xA Control Builder or Compact Control Builder
- The controller has full EMC certification
- Hardware based on standards for optimum communication connectivity (Ethernet, PROFIBUS DP, etc.)
Specifications
- Product Type
- AC 800M Processor Unit
- Article number
- 3BSE066485R1 (PM851AK01)
- Redundancy
- No
- High Integrity
- No
- Clock Frequency
- 24 MHz
- Performance, 1000 boolean operations
- 0.46 ms
- Performance
- 0.46 ms
- Memory
- 12 MB
- RAM available for application
- 6.253 MB
- Flash memory for storage
- Yes
Variant
- Processor type
- MPC860
- No. of applications per controller
- 32
- No. of programs per application
- 64
- No. of tasks per controller
- 32
- Flash PROM for firmware storage
- 2 MB
- Power supply
- 24 V DC (19.2-30 V d.c.)
- Power consumption +24 V type/max
- 180 / 300 mA
- Power dissipation
- 4.32 W (7.2 W max)
- Redundant power supply status input
- Yes
- Built-in back-up battery
- Lithium, 3.6 V
- Event queue in controller per OPC client
- Up to 3000 events
- AC 800M transm. speed to OPC server
- 36-86 events/sec ,113-143 data messages/sec
- I/O clusters on Modulebus with non-red. CPU
- 1 electrical, 1 optical
- I/O capacity on Modulebus
- Max 24 I/O modules
- Modulebus scan rate
- 0 - 100 ms (actual time depending on number of I/O modules)
- Ethernet channels
- 1
- 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
- RS-232C interface
- 2 (one general, 1 for service tool)
- RS-232C interface (COM3) (non red. only)
- RS-232C, 75-19 200 baud, RJ-45 female (8-pole), not opto isolated, full RTS-CTS support
- RS-232C interface (COM4) (non red. only)
- RS-232C, 9 600 baud, RJ-45 female (8-pole), opto isolated, no RTS-CTS support
- Hazardous location
- cULus Class 1, Zone 2, AEx nA IIC T4, ExnA IIC T4Gc X
- Temperature, Operating
- 0 to +55 °C (+32 to +131 °F)
- Protection class
- IP20 according to EN 60529, IEC 529
- CE Mark
- Yes
- Width
- 119 mm
- Height
- 186 mm
- Depth
- 135 mm
- Weight (including base)
- 1100 g