ABB 3BDH001000R0001 PM 902F CPU module

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ABB 3BDH001000R0001 PM 902F

ABB 3BDH001000R0001 PM 902F is a Central Processing Unit (CPU) module for the ABB Freelance AC 900F Distributed Control System (DCS). It is the standard/medium-performance controller unit designed for process automation applications requiring reliable multitasking, fast loop execution, and redundant controller operation.

Product Overview

• Manufacturer: ABB
• Product Type: CPU / Central Processing Unit Module
• Model: PM 902F
• Article Number: 3BDH001000R0001
• System: ABB Freelance AC 900F Controller / Freelance DCS
• Controller Class: Standard CPU module
• Redundancy Support: Yes
• Typical Capacity: Up to approximately 1,500 I/O points depending on application configuration

Technical Specifications

Parameter	Specification
Processor	PowerQUICC II Pro
CPU Clock Frequency	800 MHz
Controller Memory	24 MB
Application RAM	8 MB
Battery Buffered SRAM	8 MB
DRAM	16 MB
Boolean Performance	0.12 ms / 1000 boolean operations
Power Supply	External 24 V DC
Power Consumption	Typical 24 W / Maximum 30 W
Power Dissipation	18 W
Ethernet Interfaces	4 × Ethernet (10/100 Mbit/s RJ45)
Serial Interfaces	3 × RS-232C (2 general + 1 service/diagnostic)
Communication Module Slots	2 slots
Operating Temperature	-20 °C to +70 °C
Protection Class	IP20
Dimensions (W×H×D)	227 × 152 × 95 mm
Weight	Approx. 1.1 kg

Main Features

• High-performance processor for multitasking and fast control loop execution
• Supports controller redundancy for high availability systems
• Built-in SD card support for backup and firmware management
• Integrated Ethernet communication for:
  • Modbus TCP
  • IEC 60870-5-104 telecontrol protocols
  • Controller/operator station communication
• Supports additional communication interface modules through expansion slots
• Designed for industrial environments with G3 corrosion protection compliance

Application Areas

ABB PM 902F is commonly used in:

• Power generation plants
• Oil & gas processing
• Chemical and petrochemical industries
• Water and wastewater treatment
• Industrial manufacturing processes
• Continuous process automation systems

Typical applications include:

• Process control loops
• Motor and drive control
• Remote I/O management
• Plant monitoring and supervisory control
• Redundant DCS controller architectures

System Compatibility

The PM 902F is part of the ABB Freelance AC 900F controller family, working together with:

• ABB Freelance Engineering tools
• S700/S800/S900 I/O systems
• Communication interface modules
• Operator and engineering stations

Conclusion

The ABB 3BDH001000R0001 PM 902F CPU Module is a reliable and scalable controller for ABB Freelance DCS platforms. With an 800 MHz processor, 24 MB controller memory, four Ethernet ports, redundancy capability, and support for up to around 1,500 I/O points, it is suitable for demanding industrial automation and process control applications.