Product Description
The Yokogawa SSB401-13 functions as a high-speed ESB bus slave interface component within the Centum control system architecture. This module provides critical network infrastructure by bridging distributed safety node units directly to central control processors, maintaining reliable data exchange across hazardous and high-demand process environments.
Technical Specifications
The following table indexes the certified hardware parameters, electrical capabilities, and logistics data for the SSB401-13 interface module.
| Parameter | Specifications |
| Brand | Yokogawa |
| Model Number | SSB401-13 |
| Module Type | ESB Bus Interface Module (Slave) |
| System Platforms | CENTUM CS 3000 / CENTUM VP |
| Network Data Rate | 128 Mbps |
| Node Support | Up to 13 Safety Node Units per segment |
| Functional Safety Standard | IEC 61508 Compliant |
| Hardware Status | Active / Current Production |
| Physical Dimensions | 3.3 cm x 10.7 cm x 13.0 cm |
| Net Weight | 0.3 kg |
| Harmonized Tariff Code (HS Code) | 8537101190 |
| Country of Origin | Japan |
| Minimum Order Quantity | 1 Unit |
Key Technical Characteristics
- Dual-Redundant Communication: The hardware architecture features separate communication traces to sustain simultaneous dual-path data flows, ensuring zero data loss if a localized network branch fails.
- High-Bandwidth Performance: Operating at $128\text{ Mbps}$, the module ensures low-latency propagation of I/O diagnostic data and time-stamped alarms across the distributed system backbone.
- Multi-Node Capability: A single interface module anchors connections for up to thirteen independent safety node units, optimizing hardware density and lowering overall engineering layout costs.
- Certified Compliance: Strict adherence to IEC 61508 protocols guarantees that internal circuitry manages data with high functional safety integrity, making it suitable for SIL-rated safety instrumented systems.
Application and System Integration
Control engineers integrate the SSB401-13 into industrial plants that run emergency shutdown (ESD) mechanisms, critical turbine protections, and fire and gas monitoring matrix networks. Because the interface links seamlessly with Yokogawa’s signature Centum distributed control architectures, it maintains constant uptime for highly volatile processes. Consequently, automated facilities in the petrochemical refining sector, chemical synthesis plants, and heavy thermal power generation stations rely on this module to ensure real-time fault detection and fault isolation.
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