Overview
The Yokogawa SSB401‑S53 is an ESB Bus Interface Slave Module designed for CENTUM CS and CENTUM VP distributed control systems (DCS). It connects field I/O node units to the ESB bus, enabling high-speed, reliable data transfer. The module supports redundant bus configurations, ensuring robust operation in industrial environments.
Key Features
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Provides a high-speed communication bridge between FCS and field I/O nodes
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Supports optical or electrical ESB bus configurations for flexible system design
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Compatible with dual-redundant ESB bus for enhanced system reliability
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Works with ESB Bus Coupler Modules such as EC401/EC402
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Supports up to 9 connected I/O node units depending on FCS database configuration
Technical Specifications
General Information
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa |
| Model | SSB401‑S53 |
| Type | ESB Bus Interface Slave Module |
| Compatible Systems | CENTUM CS / CENTUM VP DCS |
| Primary Function | Connects field I/O nodes to ESB bus for fast data exchange |
Performance
| Parameter | Specification |
|---|---|
| Transmission Speed | 128 Mbps (I/O module communication) |
| Max Connected Units | 9 units (based on FCS configuration) |
| Transmission Distance | Standard ESB ≤ 10 m; Optical versions support longer distances |
Physical Dimensions
| Parameter | Specification |
|---|---|
| Dimensions | 130 × 142.5 × 32.8 mm |
| Weight | 0.45 kg |
Installation & Environment
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Mounting: Field I/O Node Unit
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Supports dual-redundant ESB bus configurations
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Industrial-grade design for temperature, vibration, and EMI resistance
Applications
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Field I/O data acquisition and communication in DCS networks
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Redundant high-reliability industrial networks
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Expansion or upgrade of CENTUM CS / VP systems
FAQ
Q: How many I/O nodes can the SSB401‑S53 support?
A: Up to 9 nodes, depending on FCS database configuration.
Q: Does it support redundant bus operation?
A: Yes, it supports dual-redundant ESB bus configurations for continuous communication.
Q: Can it operate over optical ESB?
A: Yes, optical ESB versions allow long-distance, stable data transfer.
Q: Are there similar models for comparison?
A: Models SSB401‑S51 and SSB401‑S52 offer variations in transmission speed and maximum connected nodes for different network sizes.
