Product Description

The P0928DH is a CP280 Control Processor for Foxboro I/A Series / EcoStruxure DCS systems. It executes mission-critical control strategies, including PID loops, sequential logic, and timing, while managing up to 128 Fieldbus Modules (FBMs).

Designed for Control Mesh networks, the P0928DH supports dual Ethernet ports, fault-tolerant redundancy, and bumpless failover, ensuring continuous operation in high-availability industrial applications.

Key Specifications

• Processor: CP280, PowerPC-based high-speed CPU

• Memory: 128 MB ECC RAM / 64 MB Flash

• Control Density: Up to 8,000 control blocks

• I/O Support: Up to 128 FBMs

• Network: Dual 100 Mbps Ethernet

• Fieldbus: 2 Mbps HDLC Fieldbus

• Redundancy: 1-out-of-2 (1oo2) hardware fault-tolerant

• Operating Temp: 0 °C to +60 °C

• Environmental Rating: ISA S71.04 G3

• Mounting: Standard CP280 modular baseplate

• OS: Real-Time Operating System (RTOS)

Applications

• Large-scale oil & gas, chemical, and water treatment plants

• Managing 100/200 Series FBMs in mixed legacy and modern DCS environments

• High-availability, fault-tolerant process control

• System expansions requiring seamless integration of old and new hardware

Technical FAQ

• Difference vs P0928EB: DH is a specific hardware/firmware revision optimized for I/A Series v9.0+ software; core processing is similar.

• Hot-Swap Support: Yes, one module can be replaced in a redundant pair without shutting down the process.