Yokogawa|SSB401-S53|ESB Bus Interface Slave Module

YOKOGAWA SSB401-S53 ESB Bus Interface Slave Module Description The Yokogawa SSB401-S53 is an ESB (Enterprise Safety Bus) Bus Interface Slave Module designed for ProSafe-RS safety systems and CENTUM VP/CS distributed control systems (DCS), enabling high-speed data exchange between safety control units, field I/O node units, and the Field Control Station (FCS) via the ESB architecture. Features High-speed ESB bus slave interface. Supports dual-redundant bus configurations. SIL 3 compatible safety communication. Optical and electrical ESB connectivity. Hot-swappable in redundant setups. Industrial-grade EMI shielding and vibration resistance. Technical Specifications Model: SSB401-S53 Manufacturer: Yokogawa Electric Corporation Product Type: ESB Bus Interface Slave Module / Safety Bus Interface Module System Compatibility: ProSafe-RS, CENTUM VP, CENTUM CS DCS Primary Function: Connects safety node units and field I/O nodes to ESB bus Transmission Speed: 128 Mbps Max Connected Units: Up to 9 units per FCS configuration Transmission Distance (Copper ESB): ≤ 10 m Optical Extension Distance: 5 km to 50 km (two-stage extension) Redundancy Support: Dual-redundant ESB bus configurations Mounting: Rack-mounted within safety node units (e.g., SNB10D) Dimensions (H × W × D): 130 mm × 142.5 mm × 32.8 mm Alternative Dimensions Reported: 130 mm × 100 mm × 42 mm Weight: 0.3 kg to 0.45 kg Operating Temperature: –20°C to +60°C Storage Temperature: –40°C to +85°C Humidity: 5% to 95% RH, non-condensing Power Consumption: 0.5 A (system supply dependent) Cooling Method: Natural air cooling (fanless)