ABB PM902F 3BDH001000R0001 CPU Module AC900F Controller

The ABB PM902F (3BDH001000R0001) serves as a high-performance central processing unit within the Freelance AC 900F controller family. This medium-range base unit manages complex automation tasks by coordinating data flow between field devices and the control network. Specifically designed for Distributed Control Systems (DCS), the PM902F handles up to 1500 I/O points. Its robust processing power and extensive memory allocation make it suitable for medium to large-scale industrial applications requiring high availability and precision.

High-Performance Processing and Memory Architecture

At the core of the PM902F is an 800 MHz CPU clock that delivers rapid execution of control logic. To support sophisticated program structures, ABB equipped this module with 24 MB of controller memory and 16 MB of DRAM. Additionally, the unit features 8 MB of battery-buffered SRAM. This specific memory type ensures that critical process data and variables remain intact during power interruptions. Furthermore, the module allows for the installation of the operating system during software setup, providing a flexible foundation for various process control strategies.

Versatile Connectivity and Expansion Options

The AC900F platform emphasizes seamless communication across the plant floor. The PM902F module includes four integrated Ethernet interfaces, supporting high-speed data exchange and network redundancy. It also supports modern Ethernet-based protocols, including Modbus TCP and IEC 60870-5-104. For hardware expansion, the CPU provides two dedicated slots for Communication Interface Modules. These slots allow engineers to add serial ports or fieldbus connections based on specific project requirements. Moreover, built-in SD card support facilitates easy firmware updates and data logging.

Technical Specification Summary

• CPU Performance: 800 MHz clock speed
• I/O Capacity: Supports up to 1500 I/O points
• System Memory: 24 MB Controller Memory / 16 MB DRAM
• Data Retention: 8 MB Battery-Buffered SRAM
• Network Interfaces: 4x Ethernet ports (RJ45)
• Expansion Potential: 2 Slots for CI Modules
• Environmental Rating: G3 Compliant (Conformal Coated)
• Software Requirement: Freelance 2013 or higher
• Net Weight: 1.08 kg