Technical Overview

The NFBU050-S15 (NFBU050-S15) is a precision-engineered Short Base Module specifically developed for Yokogawa’s FCN-RTU (Field Control Node) low-power autonomous controller series. This compact infrastructure component serves as the physical and electrical backbone for localized control tasks, providing high-speed communication backplanes and power distribution for a centralized CPU and its associated I/O array. The NFBU050-S15 (NFBU050-S15) is optimized for remote or space-constrained installations where energy efficiency and environmental resilience are paramount.

Detailed Technical Specifications

The following parameters define the operational and physical profile of the NFBU050-S15 (NFBU050-S15):

• Module Capacity: Supports one CPU module and up to three secondary I/O modules.

• Mounting Versatility: Suffix S15 indicates a configuration optimized for standard DIN rail mounting or integration into 19-inch racks.

• Electrical Load: Maximum power consumption of 20 W.

• Environmental Resilience:

• Operating Temperature Range: -20°C to +70°C.

• Storage Temperature Range: -40°C to +85°C.

• Maximum Installation Altitude: 3000 m (High-altitude capable).

• Physical Footprint:

• Dimensions: 130 mm x 142.5 mm x 65.8 mm.

• Net Weight: Approximately 1.5 kg.

• Suffix Configuration Details:

• S: Standard hardware type.

• 1: DIN rail-mounted interface.

• 5: Basic type (non-explosion protected variant).

• Manufacturing Quality: Produced in Japan with a 12-month standard industrial warranty.

Application & System Integration

The NFBU050-S15 (NFBU050-S15) is a core component of the STARDOM autonomous controller family, frequently deployed in the oil and gas, water treatment, and renewable energy sectors. Its compact design allows it to be housed in small field enclosures, while its wide thermal tolerance ensures reliable logic execution in outdoor or unconditioned environments. When paired with Yokogawa's low-power I/O modules, this base unit forms a highly efficient RTU (Remote Terminal Unit) capable of long-term operation in solar-powered or battery-backed sites.