Description

Product Description

The Yokogawa SSB401-13 serves as a high-performance slave interface within the ProSafe-RS and Centum series architectures. Specifically designed to manage data flow across the Extended Serial Backplane (ESB) bus, this module acts as the primary communication link for safety node units. By bridging the gap between field-level safety sensors and the central control logic, the SSB401-13 ensures that safety-critical signals move throughout the network with minimal latency and maximum integrity.

To maintain the highest levels of operational uptime, the SSB401-13 utilizes a dual-redundant architecture. This design allows for simultaneous data transmission across two independent paths, which effectively eliminates single points of failure in the communication chain. Consequently, even if one path encounters interference or hardware issues, the safety system continues to function without interruption. This reliability is vital for maintaining the safety integrity levels (SIL) required by international standards like IEC 61508.

Furthermore, the module supports impressive transmission speeds of up to 128 Mbps. This bandwidth enables the system to handle complex safety logic for up to 13 safety node units per bus segment. Because of its robust construction and high-speed throughput, engineers frequently deploy the SSB401-13 in hazardous environments. It proves especially effective in emergency shutdown (ESD) systems, fire and gas (F&G) detection, and burner management systems (BMS) where failure is not an option.

Technical Characteristics

• Brand: Yokogawa
• Model: SSB401-13
• Part Type: ESB Bus Interface Module (Slave)
• Communication Speed: 128 Mbps
• Connectivity: Supports up to 13 Safety Node Units
• Safety Compliance: IEC 61508 SIL certified
• Redundancy: Dual-redundant communication support
• Dimensions: 33 mm x 107 mm x 130 mm
• Net Weight: 0.3 kg
• Country of Origin: Japan

Operational Applications

Industrial facilities utilize the SSB401-13 to protect infrastructure and personnel in high-risk sectors. Key applications include:

• Oil and gas refinery emergency shutdown procedures.
• Chemical processing plant fire and gas monitoring.
• Power generation turbine protection and safety logic.
• Large-scale manufacturing safety interlocks.