The Yokogawa SB301-S1 is a V-net / ESB bus interface card module used in Yokogawa CENTUM CS 3000 Distributed Control Systems (DCS).
It is designed to serve as a communication interface between Field Control Stations (FCS) and the system network (V-net / ESB bus architecture), enabling high-speed and deterministic data exchange across the control system. The SB301-S1 is a key component in legacy CENTUM CS 3000 networks, where it ensures stable communication between controllers and supervisory stations.
This module is widely used in installed base systems that require long-term maintenance and spare-part continuity, especially in power plants, petrochemical facilities, and large-scale process industries.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | SB301-S1 |
| Product Type | V-net / ESB Interface Card |
| System Compatibility | CENTUM CS 3000 |
| Function | System communication interface |
| Network Type | V-net (legacy Yokogawa DCS network) |
| Communication Role | FCS ↔ Control network data exchange |
| Redundancy Support | Supported in dual-network configurations |
| Power Supply | DC 5V / system backplane dependent |
| Operating Temperature | 0°C to 55°C (cabinet environment typical) |
The SB301-S1 is part of Yokogawa’s legacy V-net architecture, which provides deterministic communication for CS 3000 systems.
Physical Characteristics
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | Approx. 96 × 52 × 20 mm |
| Weight | Approx. 0.3 – 4 lbs (≈0.14–1.8 kg depending on listing) |
| Mounting Type | Rack-mounted interface card |
| Structure | Industrial PCB communication board |
| Installation | Plug-in slot in FCS / control rack |
Recommended Related Models
- Yokogawa SB401 – V-net communication module (CS 3000 family)
- Yokogawa VF701 – Vnet/IP interface module (upgrade path)
- Yokogawa AFV30D – controller communication module
- Yokogawa CP461 / CP471 – FCS controller CPU modules
- Yokogawa ESB bus connector series (S934x models)
Popular Yokogawa Models
- Yokogawa SB301-S1 – V-net interface card
- Yokogawa SB401 – extended network interface module
- Yokogawa VF701 – modern Vnet/IP communication upgrade module
- Yokogawa CP471 – controller CPU module
- Yokogawa CENTUM VP – next-generation DCS platform
