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SB401-10

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The Yokogawa SB401-10 is an ESB Bus Interface Slave Module for node units, enabling communication between I/O modules and Field Control Units via ESB bus.
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Technical specifications for SB401-10

  • Manufacturer:
    Yokogawa
  • Part Number:
    SB401-10
  • Product Family:
    Centum CS-Centum VP
  • Product Type:
    Interface Slave Module
  • Stock:
    3
  • Function:
    Communication interface between I/O modules and FCU
  • Max I/O Modules per Node:
    8
  • Max Node Units per FCU (AFV30/AFV40):
    13
  • Max Node Units per FCU (A2FV50/A2FV70):
    8
  • Mounting:
    19-inch rack mount (M5 x 4 screws)
  • Communication Protocol:
    ESB Bus
  • Weight:
    0.18 kg
  • Estimated shipping dimensions:
    3.2x12.5x13cm
  • Tariff Code:
    8517795000
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Certifications & Standards Compatibility

Features:

  • Enables reliable data transfer between I/O modules and Field Control Units.
  • Provides high availability with two modules in ANB10D nodes.
  • Accommodates up to 8 I/O modules per node unit for field signals.
The SB401-10 serves as the communication interface between field I/O modules and the Field Control Unit (FCU) via the ESB bus. Installed in ESB Bus Node Units (ANB10S or ANB10D), the SB401-10 enables seamless data transfer of analog and contact I/O signals. The module requires ESB Bus Coupler Modules (EC401 or EC402) installed in slots 7 and 8 of the FCU to establish the communication link. The SB401-10 ensures high-speed, reliable communication essential for real-time process control in Yokogawa CENTUM VP DCS systems.

The SB401-10 supports dual-redundant configuration by installing two modules in the node unit. This redundancy ensures continued operation if one SB401-10 module fails, preventing single points of failure and maximizing system availability. The ANB10D (Dual-Redundant ESB Bus) node unit is specifically designed for this configuration. The SB401-10 also supports single configuration in ANB10S nodes for non-critical applications. This flexibility makes the SB401-10 suitable for both standard and high-availability applications.

Each SB401-10 in an ANB10 node unit supports up to 8 I/O modules, enabling efficient use of cabinet space. The module supports connection of up to 13 node units per FCU (for AFV30/AFV40) or 8 node units (for A2FV50/A2FV70), providing scalability for systems ranging from small to large process control applications. The node unit weighs approximately 10 kg when fully populated with 8 I/O modules and mounts in a standard 19-inch rack. Installation limitations apply when using modules with built-in barriers, requiring insulating partitions.

The SB401-10 YOKOGAWA Interface Slave Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

YOKOGAWA SB401-10 Interface Slave Module Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
YOKOGAWA SB401-10 Interface Slave Module Specs

General

  • Manufacturer YOKOGAWA
  • Model SB401-10
  • Condition New Original ready stock
  • Product Family SSB401-53 S1,SB401-11 S1,SB401-50 S1,SSB401-13
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Remote I/O Data Consolidation: Installed in Distributed Control System (DCS) cabinets to aggregate massive data streams coming from field transmitters (analog inputs, digital inputs, thermocouple matrices).
  • Petrochemical & Oil Refining Plants: Manages long-distance distributed communication networks across large industrial complexes, ensuring real-time process monitoring of distillation columns, tank farms, and cracking units.
  • Power Generation Facilities: Connects the turbine/boiler control room to distributed sensor nodes placed throughout the facility under demanding, continuous operation.
  • Functional Safety Standards: While it is a standard DCS control component, it is fully qualified to work alongside Yokogawa's TÜV-certified ProSafe-RS Safety Instrumented Systems (SIS) to satisfy up to SIL 3 safety integrity loops.
  • Explosion & Hazardous Location Protections: The base model suffix dictates its zoning rules; when selected with specific explosion-proof configurations, it meets ATEX, IECEx, and FM (Factory Mutual) Class I, Division 2 guidelines for safe operation in the presence of hazardous gases.
  • Environmental & Stress Resilience: Certified to pass strict industrial vibration and seismic shock thresholds (withstanding continuous accelerations of up to 4.9 m/s²) and strong electromagnetic field interference rules (up to 10 V/m).
  • System & Controller Compatibility: Natively compatible with CENTUM VP and CENTUM CS 3000 architectures. It interfaces directly with central master-side modules like the EC401 / EC402 ESB Bus Coupler Modules housed on the primary FCU backplane.
  • Node Unit Mounting: Plugs into the designated left-hand communication slots of Models ANB10S (Single) and ANB10D (Duplex) ESB Bus Node Units.
  • Dual-Redundant Interoperability: Designed for native hot-standby operations. When twin SB401-10 units are paired inside an ANB10D rack, they split communication lines over Bus 1 (odd slot) and Bus 2 (even slot). If one path breaks, the slave logic switches instantly to the other line without losing active control registers.
Description
The Yokogawa SB401-10 is an ESB Bus Interface Slave Module designed for Yokogawa CENTUM VP DCS systems. This module provides the communication interface between I/O modules and the Field Control Unit (FCU) via the ESB bus. 

The Yokogawa SB401-10 supports dual-redundant configuration, allowing two modules to be installed for high-availability systems. Each ANB10 node unit can accommodate up to 8 I/O modules with the SB401-10. 

The Yokogawa SB401-10 is compatible with various node units including ANB10S (Single ESB Bus) and ANB10D (Dual-Redundant ESB Bus). The SB401-10 operates within node units that support 100-120V AC, 220-240V AC, or 24V DC power supplies. The Yokogawa SB401-10 is designed for 19-inch rack mounting with M5 x 4 screws. The SB401-10 supports up to 13 node units per FCU (AFV30/AFV40) or 8 node units (A2FV50/A2FV70). 
Alternative Names
SB4O1-1O SB40I-I0 SB401 10 SB401-10 S1 SSB401-53 S1 SB401-50 S1 SB401-11 S1 SB401-51 S1
Technical notes
The Yokogawa SB401-10 is an ESB Bus Interface Slave Module for ANB10 node units, enabling communication between I/O modules and FCU. It supports up to 8 I/O modules, dual-redundant configuration, and 19-inch rack mounting. Compatible with ANB10S/ANB10D and EC401/EC402 couplers. Max 13 node units per FCU.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary function of the SB401-10?
It provides ESB bus communication between I/O modules and Field Control Units in Yokogawa DCS systems.
How many I/O modules can the SB401-10 support?
Each SB401-10 in an ANB10 node unit supports up to 8 I/O modules for field signal processing.
Can the SB401-10 be configured redundantly?
Yes, the SB401-10 supports dual-redundant configuration with two modules in ANB10D node units.
What are the maximum node units per FCU with SB401-10?
Up to 13 node units for AFV30/AFV40 or 8 node units for A2FV50/A2FV70 FCUs.