Product Description

The FDC280 (RH101FQ) is a high-performance Field Device Controller serving as a central intelligence node within the EcoStruxure™ Foxboro Distributed Control System (DCS). It is engineered to execute control logic, manage real-time communications, and interface efficiently between supervisory systems and field-level instrumentation.

Designed for high-availability process environments, the FDC280 supports both single and fault-tolerant (redundant) configurations. In redundant operation, two RH101FQ modules operate in parallel via a dedicated baseplate synchronization link, enabling bumpless switchover and continuous control in the event of a module failure. Its compact, modular form factor supports high-density cabinet layouts and flexible mounting orientations, making it well suited for new installations and system expansions.

Technical Specifications

Application Scenarios

The FDC280 is widely deployed in mission-critical industrial systems, including:

• Petrochemical and refining operations

• Upstream oil and gas production

• Large-scale power generation facilities

Its fault-tolerant architecture and support for hot-swappable modules make it the preferred controller for applications where downtime is unacceptable and continuous process operation is mandatory.

Technical FAQ

Q: Can a single FDC280 be upgraded to a fault-tolerant configuration?
A: Yes. By installing a 2-position baseplate and adding a second RH101FQ module, the system can be upgraded to a redundant configuration. The controllers automatically synchronize their logic and databases.

Q: How does the FDC280 differ from standard I/O modules?
A: Unlike standard I/O modules that only acquire or output signals, the FDC280 is an active controller. It executes control strategies, manages communications, and acts as the local processing “brain” for its assigned group of field devices.