PM856K01 ABB AC 800M System 800xA CPU Processing Module
Manufacturer: ABB
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Part Number: PM856K01
Condition：New with Original Package
Product Type: PLC CPU Modules
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB PM856K01 AC 800M CPU Module
The ABB PM856K01 (Part Number: 3BSE018104R1) is a high-performance central processing unit module designed for the ABB AC 800M controller platform within System 800xA. Operating at a 24 MHz clock frequency, it executes control logic and manages communication across distributed automation architectures. The unit features 16 MB of total RAM, providing 10.337 MB of dedicated memory for user applications, alongside an integrated CompactFlash interface for program and backup storage.
Processing Performance and Communication Architecture
The processor board delivers an execution speed of 0.46 ms per 1000 Boolean operations to ensure stable loop control and logic processing. The unit incorporates two RJ45 Ethernet ports (CN1 and CN2) for control network connectivity, with each base plate assigned a unique hardware Ethernet address to ensure distinct network identity. Dual RS-232C serial ports handle local access and communication, where COM3 supports modem control functions and COM4 provides an isolated serial channel for engineering tools and system configuration.
Operational Characteristics and Hardware Features
The module operates from a 24 VDC power supply with a typical power consumption of 4.32 W. It supports hot standby CPU redundancy for applications requiring continuous control availability. Status monitored via front-panel LED indicators and a real-time clock assist with diagnostic tracking. Built with an IP20 protection class, the module mounts directly onto standard DIN rails using ABB's slide-and-lock attachment mechanism.
| Parameter | Specification |
|---|---|
| Model | PM856K01 |
| Brand | ABB |
| Part Number | 3BSE018104R1 |
| Product Type | CPU Module |
| System Compatibility | ABB AC 800M, System 800xA |
| Clock Frequency | 24 MHz |
| Execution Speed | 0.46 ms per 1000 Boolean operations |
| Memory Capacity | 16 MB RAM (10.337 MB available for applications) |
| Storage | Integrated CompactFlash storage |
| Communication Interfaces | 2 x RJ45 Ethernet (CN1, CN2), 2 x RS-232C (COM3, COM4) |
| Redundancy Support | Hot standby redundancy |
| Power Supply Voltage | 24 VDC |
| Power Consumption | 4.32 W (typical) |
| Operating Temperature | 0 deg C to +60 deg C |
| Storage Temperature | -25 deg C to +70 deg C |
| Protection Class | IP20 |
| Mounting Type | DIN rail (slide-and-lock mechanism) |
| Certifications | CE, RoHS, WEEE |
| Country of Origin | Sweden |
Frequently Asked Questions
Q: What is the available memory for user applications on the ABB PM856K01? A: The module provides 16 MB of total RAM, with 10.337 MB specifically designated for user application memory.
Q: How are the serial communication ports configured on this processor? A: It includes two RS-232C serial channels: COM3 supports modem control, while COM4 offers isolated access for engineering and setup tools.
Q: Does the PM856K01 support redundant controller configurations? A: Yes, it supports hot standby redundancy to maintain controller operation during single-processor events.