Product Overview

The Yokogawa NFBU200-S05 is a high-integrity foundational base module engineered specifically for the STARDOM FCN-500 autonomous controller series. This hardware backbone serves as the physical and electrical mounting platform for CPU modules, power supply units, and a wide array of I/O modules. Designed to support high-availability architectures, the NFBU200-S05 facilitates seamless redundancy for power, processing, and internal communication buses. Its robust backplane design ensures deterministic data flow via the internal SB bus while providing the physical structure necessary for rack-mounted industrial installations. This module is an essential component for engineers building scalable, mission-critical automation systems that require maximum uptime and modular flexibility.

Mechanical Specifications and Architecture Logic

• Slot Capacity (Standard): Supports up to 8 I/O modules

• Slot Capacity (Duplexed): Supports up to 6 I/O modules (allowing for redundant CPU/Power)

• Backplane Bus: Integrated SB Bus for internal data exchange

• Expansion Capabilities: E2 Bus interface for node-to-node expansion

• Mounting Style: Standard 19-inch rack-mounted configuration

• Thermal Range: -10°C to +55°C (Operation); -40°C to +70°C (Storage)

• Redundancy Support: Dual power supply slots and dual CPU slot synchronization

• Unit Weight: 2.1 kg

• Dimensions: 482.6 mm (W) x 132.5 mm (H) x 150 mm (D)

Strategic Process Deployments

The NFBU200-S05 is the structural core for various large-scale automation projects where system failure is not an option. Key implementations include:

• High-Availability Control Nodes: Housing duplexed CPUs for offshore oil and gas platforms to ensure zero-shutdown performance.

• Complex Data Aggregation: Managing up to 8 I/O modules for high-density sensor monitoring in chemical processing plants.

• Distributed Power Plant Control: Utilizing the E2 expansion bus to link multiple base modules for comprehensive turbine and boiler management.

• Remote Utility Infrastructure: Serving as the central hub for water treatment or pipeline RTUs where long-term hardware reliability in varying temperatures is critical.

FAQ

Q: Can the NFBU200-S05 be used with older FCN controllers?

A: This base module is specifically optimized for the FCN-500 series autonomous controllers. For older FCN models, you should verify backplane compatibility with the specific CPU module generation.

Q: How does the duplexed mode affect the available I/O slots?

A: In duplexed mode, two slots are dedicated to redundant CPUs and two to redundant power supplies, which reduces the remaining available slots for I/O modules to six.

Q: Does the base module include the power supply units?

A: No, the NFBU200-S05 is the base chassis only. Power supply modules and CPU modules must be ordered separately based on your specific redundancy requirements.

Q: Is it possible to expand the system beyond a single base module?

A: Yes, the module supports the E2 bus, which allows for the connection of expansion units to increase the total number of I/O points managed by the FCN-500 controller.

Q: What type of environment is this module rated for?

A: The module is designed for industrial rack mounting and can operate in temperatures ranging from -10°C up to +55°C, making it suitable for standard controlled-environment control rooms.