Product Description
The SB401-10 is a specialized Bus Interface Module designed for Yokogawa Electric Corporation’s FIO (Field network I/O) system. It serves as the primary communication bridge between a Field Control Unit (FCU) and an ESB (Extended Serial Backplane) Bus Node Unit, enabling remote I/O modules to integrate seamlessly with CENTUM VP or CS 3000 DCS architectures.
The -10 suffix denotes a specific hardware revision optimized for signal integrity and compatibility with the standard 36-pin ESB bus connector. The module ensures high-speed, deterministic data transfer, maintaining the real-time performance required for critical process control loops.
Technical Specifications
| Item | Specification |
|---|---|
| Model Number | SB401 |
| Suffix Code | -10 |
| Module Type | Bus Interface Module |
| Bus Protocol | ESB Bus (Extended Serial Backplane) |
| Connector Interface | 36-pin dedicated bus connector |
| Max. Communication Distance | 10 meters (standard ESB cable) |
| Power Consumption | 0.5 A at 5 V DC (from backplane) |
| System Compatibility | CENTUM VP, CENTUM CS 3000 |
| Installation Slot | FCU or Node Unit I/O module slot |
| Weight | 0.30 kg |
| Environmental Rating | Standard industrial grade |
Application and Installation
The SB401-10 is installed in the FCU or Node Unit to act as the master interface for the ESB bus, linking the central processor to remote I/O modules in distributed node units. A typical setup uses YCB301 cabling to connect to SB401 modules in remote cabinets, enabling flexible I/O placement without compromising the unified control environment.
Professional FAQ
Does the SB401-10 support redundancy?
Yes. Two SB401-10 modules can be installed in a redundant configuration. If the primary module or cable fails, the system automatically switches to the secondary module, maintaining uninterrupted communication.
What is the difference between SB401 and ANB10?
The SB401-10 is the interface module, whereas the ANB10 is the Node Unit chassis. The SB401 module is required to link the chassis to the control system.
Can the SB401-10 be used for ER Bus communication?
No. The SB401-10 is strictly for ESB Bus short-distance cabinet linking. ER Bus communication requires EB401 or other ER-specific modules.
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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