Yokogawa SB401-10-S1 ESB Bus Interface Slave Module
The Yokogawa SB401-10-S1 is a high-performance ESB (Enhanced Service Bus) Interface Slave Module designed for the Yokogawa CENTUM VP Distributed Control System (DCS). This module serves as a critical communication bridge, connecting a Field Control Unit (FCU) to remote I/O nodes to ensure high-speed, real-time, and deterministic data synchronization. Equipped with a factory-applied G3 conformal coating, the SB401-10-S1Â is highly resilient against harsh, corrosive industrial environments, making it ideal for oil & gas, petrochemical, marine, and heavy manufacturing applications. It supports dual-redundant configurations to maximize system uptime and eliminate single points of failure.
| Specifications | |
| Product Make | YOKOGAWA |
| Model Number | SB401-10-S1 |
| Module Type | Â ESB Bus Interface Slave Module |
| System Compatibility | CENTUM VP, CENTUM CS 3000 DCS |
| Interface Slots | Mounts to dedicated slave slots on ESB Bus Node Units (ANB10S / ANB10D) |
| Input Voltage | 24 Vdc (supplied via node unit backplane) |
| Current Consumption | 0.5 A max |
| Conformal Coating Style | G3 Standard (Highly corrosion/moisture resistant) |
| Hazardous Area Certification | II3 G EX NC[NL] IIC T4 X / Class I, Div 2, Groups A, B, C, D T4 |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Condition | GOOD |
| Warranty | 1 YEAR |
| Country of Origin | JAPAN |
| Protection Degree | IP20 |
| Length | 130 mm |
| Width | 32 mm |
| Height | 107 mm |
| Weight | 300 g |









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