Yokogawa SB401-10 ESB Bus Interface Slave Module | CENTUM CS 3000

Product Overview

The Yokogawa SB401-10 functions as a high-speed ESB Bus Interface Slave Module within the CENTUM CS 3000 Distributed Control System (DCS). This module resides in the remote I/O node unit and establishes a deterministic communication link with the master interface in the Field Control Unit (FCU). By managing high-speed data packets across the Extended Serial Backplane (ESB), the SB401-10 ensures real-time synchronization between field instrumentation and the central processor.

Part Number Breakdown

Yokogawa utilizes specific suffix codes to define the environmental and functional hardware profile:

Technical Specifications

The SB401-10 adheres to rigorous industrial communication standards to maintain network stability:

• Manufacturer: Yokogawa

• Module Type: Slave Interface for ESB Bus

• System Compatibility: CENTUM CS 3000, CS 1000

• Transmission Speed: 128 Mbps

• Mounting Position: Dedicated interface slot of the I/O node unit

• Interface Port: Dual connectors for redundant bus support

• Condition: 100% Brand New and Original

Engineering Advantages

• Deterministic Data Throughput: The SB401-10 manages a constant 128 Mbps transmission rate. This eliminates the "best-effort" latency found in standard Ethernet, ensuring that critical process variables arrive at the controller within fixed time intervals.

• Redundant Path Capability: This module supports dual-link ESB bus architectures. In the event of a cable break or master-side port failure, the SB401-10 switches communication to the secondary path instantaneously, preventing system downtime and maintaining process visibility.

• Simplified Node Expansion: The basic hardware profile allows for rapid I/O node addition. Engineers integrate the SB401-10 into remote racks to extend the reach of the DCS without requiring complex software re-routing or gateway configuration.

• Low Heat Dissipation: The "Basic Type" architecture optimizes power consumption. This design reduces the thermal load within high-density cabinets, extending the operational life of the I/O modules installed in the same nest.

FAQs

• Is this Yokogawa SB401-10 unit supplied as new or refurbished?

  We supply this module exclusively as 100% Brand New and Original equipment. It ships in the original Yokogawa factory packaging, ensuring zero previous usage and the highest reliability for your control system.

• What is the difference between the SB401 and the SB301?

  While the SB301 typically acts as the master interface in the FCU, the SB401 serves as the Slave Module located in the remote I/O node. You must use these in pairs (Master-Slave) to establish the ESB bus link.

• Does the SB401-10 support explosion-proof environments?

  No. The "0" suffix indicates the Standard Type with no explosion protection. You must install this module in a non-hazardous area or within a suitably rated purged enclosure if used in a volatile plant environment.

• Do I need to configure the SB401-10 via software?

  The hardware is largely plug-and-play once you define the node address in the CENTUM Engineering Station. Ensure the station identifies the correct node number via the physical dip switches on the module or the backplane before power-up.