YOKOGAWA S9345FA 2 x CONNECTOR UNITS FOR ESB BUS

Description:

The Yokogawa S9345FA is used a Connector Unit for the ESB (Enhanced System Bus), used within Yokogawa ProSafe-RS and CENTUM control systems. It serves as a base/interface unit that enables connection of modules to the ESB communication bus, supporting data exchange between safety control units, node units, and I/O modules. It is a structural/connection component rather than an active processing module.

Applications:

The Yokogawa S9345FA is used in industrial environments to enable communication and integration of modules within ESB-based control systems. It is commonly deployed in safety instrumented systems (SIS), chemical processing, oil & gas, power generation, and manufacturing plants. The unit supports stable communication between field I/O and controllers, ensuring reliable and continuous system operation.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: S9345FA
• Product Type: Connector Unit for ESB Bus
• Function: Provides physical and electrical interface to ESB communication bus
• System Compatibility:
• ProSafe-RS safety systems
• CENTUM VP / FIO / N-IO architectures
• Bus Type: ESB (Enhanced System Bus)
• Configuration: Modular base for mounting/connecting system modules
• Installation: Mounted within node unit / rack system
• Weight: ~1.0–1.3 kg
• Role: Supports communication path between control units and I/O modules
• Pairing: Often used in dual (2x) configurations for redundancy

Common Replacements:

• Yokogawa S9346FA (connector unit with terminator)
• Yokogawa S9342FA (bus interface module)
• System-specific ESB connector units (exact match required)