The Honeywell FC-RUSFDU-01 is a high-integrity Redundant Universal Safe Field Device Unit (FDU) engineered for integration with Honeywell Safety Manager and TotalPlant Solution (TPS) DCS environments. This module serves as the primary gateway between field instrumentation and the safety controller, facilitating the transmission of critical analog and discrete signals. By employing a dual-redundant architecture, the FC-RUSFDU-01 ensures that a single hardware failure does not compromise the safety function, making it an indispensable component for maintaining continuous operation in SIL-rated systems.
Designed for mission-critical applications in hazardous industrial zones, the FC-RUSFDU-01 features built-in self-diagnostics and real-time monitoring capabilities. It provides full galvanic isolation between field devices and the system bus, protecting the control logic from electrical noise and transients. The unit is optimized for high-speed data transfer, enabling system engineers to perform rapid troubleshooting and system health assessments. Its universal design supports diverse signal types, including 4–20 mA transmitters, RTDs, and discrete switches, allowing for a standardized hardware footprint across complex processing facilities like refineries and chemical plants.
| Feature | Specification Details |
| Manufacturer | Honeywell |
| Model Number | FC-RUSFDU-01 |
| Product Type | Redundant Universal Safe Field Device Unit (FDU) |
| Function | Communication & Field Device Interfacing |
| Redundancy | Dual Redundant (Fault-Tolerant Operation) |
| Safety Integrity | SIL 2 / SIL 3 Capable (IEC 61508) |
| Signal Support | Analog (4–20 mA, RTD, TC) & Discrete (DC/AC) |
| Isolation | Galvanic Isolation between channels and system bus |
| Operating Voltage | 24 VDC Nominal |
| Operating Temperature | –40 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity Range | 5% to 95% Non-condensing |
| Dimensions (HxWxD) | 145 × 100 × 40 mm |
| Net Weight | 0.68 kg |
| Compliance | CE, UL, IEC; Suitable for Class I, Div 2 |
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