Yokogawa SB401-50 Bus Interface Slave Module

Industrial Communication Applications
The Yokogawa SB401-50 Bus Interface Slave Module is designed to provide reliable communication between field devices and distributed control system processors. It is commonly deployed in chemical plants, oil & gas facilities, power generation stations, water treatment plants, and industrial manufacturing systems. The module acts as a slave interface, ensuring accurate and timely data exchange for process monitoring, control, and diagnostics.  

Key Advantages

• Reliable bus communication: Ensures consistent data transfer between slave I/O devices and the control system.

• Compact design: Space-efficient form factor allows easy integration in control cabinets.

• Seamless DCS integration: Fully compatible with Yokogawa distributed control systems.

• Industrial-grade durability: Built to withstand vibration, electrical noise, and typical plant conditions.

• Simplified maintenance: Modular design enables easy installation and replacement without system disruption.

Technical FAQs

1. What is the primary function of the SB401-50?
   It serves as a bus interface slave module, linking field I/O devices with the Yokogawa DCS.

2. Is it compatible with all Yokogawa I/O modules?
   It is compatible with Yokogawa slave I/O modules within supported DCS architectures.

3. Can it operate continuously in industrial environments?
   Yes, it is designed for 24/7 operation in typical plant conditions.

4. What are the physical dimensions of the module?
   The SB401-50 measures 130 × 142.5 × 32.8 mm.

5. What is the weight of the module?
   It weighs approximately 0.45 kg.

6. Does it require an external power source?
   No, it receives power via the bus interface from the carrier.

7. Does it support diagnostics?
   Yes, it provides status monitoring and communication health indicators.

8. Is it suitable for noisy industrial environments?
   Yes, it is designed with electrical protection to ensure reliable bus communication.

9. How is the module installed?
   It mounts directly onto the standard Yokogawa bus carrier.

10. Is it intended for hazardous areas?
    The SB401-50 is intended for general industrial use; specialized variants are available for hazardous locations.