ABB PM858K02 3BSE082896R1 AC 800M Processor Unit The ABB PM858K02 3BSE082896R1, also cataloged as the PM858K02 Processor Unit, operates as...
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ABB PM858K02 3BSE082896R1 AC 800M Processor Unit
The ABB PM858K02 3BSE082896R1, also cataloged as the PM858K02 Processor Unit, operates as a dedicated hardware component for CPU execution and redundant controller communication within the ABB AC 800M Control Network. It provides MPC866 processing, RAM memory management, Ethernet communication, serial interfaces, and CPU redundancy functions for System 800xA automation platforms.
Hardware Specifications
Parameter
Specification
Model
PM858K02 3BSE082896R1
Brand
ABB
Product Type
CPU Processor Unit
System Platform
AC 800M / System 800xA
Origin
Sweden
Weight
2700 g including base
Dimensions
Width 119 mm, Height 186 mm, Depth 135 mm
Operating Temp
0 to +55 deg C
Storage Temp
-40 to +70 deg C
Power Consumption
5.1 W typical, 8.6 W maximum
Processor Type
MPC866
Clock Frequency
33 MHz
Memory
16 MB
RAM Available for Application
7.147 MB
Flash Memory
4 MB firmware storage
Redundancy Support
CPU, CEX-Bus, communication interfaces, and S800 I/O redundancy
Ethernet Ports
2 x RJ45 Ethernet ports
Ethernet Interface
IEEE 802.3, 10 Mbit/s
Control Network Protocol
MMS and IAC
Serial Interfaces
2 x RS-232C ports
COM3 Interface
RS-232C, 75 to 19 200 baud, modem control signals, RTS/CTS support
Maximum 96 I/O modules with single CPU configuration
Cycle Time
Down to 1 ms
Boolean Operation Performance
0.36 ms per 1000 boolean operations
Redundancy Switch Over Time
Maximum 10 ms
Power Supply
24 V DC (19.2 to 30 V DC)
Backup Battery
Lithium 3.6 V
Protection Class
IP20 according to EN 60529
Certification
CE, ISA Secure, DNV-GL marine certification
Firmware Flash Compatibility and Industrial Control Architecture
The PM858K02 controller integrates CPU processing, memory storage, and communication interfaces into the AC 800M hardware architecture. The processor executes application programs stored in flash memory while maintaining real-time clock functions and diagnostic LED monitoring.
The controller supports firmware flash storage compatibility for System 800xA and Compact Control Builder environments. Therefore, configuration data, controller applications, and hardware identity information remain managed through the dedicated CPU infrastructure.
The TP830 baseplate provides two Ethernet RJ45 connections for Control Network communication. Additionally, it includes two serial communication channels for engineering access and external device interfaces. The baseplate Ethernet address provides a unique hardware identity for each controller assembly.
The slide and lock mechanism allows DIN rail attachment and removal without complex mechanical procedures. The package configuration includes redundant processor assemblies, baseplates, ModuleBus terminators, communication cables, and memory backup batteries.
Frequently Asked Questions
Q: Does the PM858K02 support CPU redundancy configuration? A: Yes. The PM858K02 supports redundant CPU operation including CPU synchronization, CEX-Bus redundancy, communication interface redundancy, and S800 I/O redundancy.
Q: What communication interfaces are available on the PM858K02 baseplate? A: The controller baseplate provides two Ethernet RJ45 ports for Control Network communication and two RS-232C serial ports. COM3 supports modem control signals, while COM4 provides an isolated service connection.
Q: What is the power requirement of the PM858K02 controller? A: The controller requires a 24 V DC supply with an operating range of 19.2 to 30 V DC. Typical current consumption is 210 mA at +24 V DC, with a maximum value of 360 mA.
Field Installation Guidelines
Install the PM858K02 controller on a compatible DIN rail using the TP830 baseplate slide and lock mounting mechanism. Verify that the mechanical locking position is fully engaged before connecting field wiring.
Connect the Control Network cables to the designated RJ45 Ethernet ports. Use industrial Ethernet routing practices and separate communication cables from high-voltage power conductors to reduce electromagnetic interference.
Connect the power supply according to the specified 24 V DC polarity requirements. Confirm grounding continuity between the controller assembly, cabinet grounding system, and protective earth.
Install the backup battery before commissioning the controller. Check LED status indicators after power application to verify normal initialization and communication operation.
Maintain adequate cabinet ventilation and avoid installation locations exposed to conductive contamination, excessive vibration, or humidity outside the specified environmental limits.
