Yokogawa ANB11D-226/BU2B Optical ESB Bus Node Unit

The Yokogawa ANB11D-226/BU2B Optical ESB Bus Node Unit is a high-performance communication module designed for integration into Yokogawa’s CENTUM VP and other advanced Distributed Control Systems (DCS). This node unit provides a reliable interface for fiber-optic Enhanced Serial Bus (ESB) networks, enabling high-speed, error-free communication between system components. Its robust design ensures stable data transmission even in challenging industrial environments, making it ideal for critical process control applications.

The ANB11D-226/BU2B unit serves as a bridge between controllers, I/O modules, and operator workstations, ensuring seamless data flow across the network. Its optical interface provides immunity to electromagnetic interference (EMI), which is essential in high-noise industrial settings. The unit is engineered for continuous operation, maintaining communication integrity for distributed process control systems.

Product Specifications

Product Applications

The ANB11D-226/BU2B Optical ESB Bus Node Unit is widely applied in industrial automation and process control systems, including:

• Power Generation Plants – Ensures reliable communication between distributed controllers and monitoring units.

• Oil & Gas Facilities – Maintains high-speed communication in refineries and offshore platforms.

• Chemical and Petrochemical Plants – Provides stable network connectivity for process automation.

• Water and Wastewater Treatment – Supports control systems with long-distance, error-free communication.

• Manufacturing Lines – Facilitates real-time control and monitoring of automated production equipment.

• Critical Infrastructure Systems – Offers EMI-resistant communication for high-reliability applications.

Product Advantages

• High-Speed Communication: Supports data rates up to 125 Mbps for rapid information transfer.

• EMI Immunity: Optical fiber interface eliminates electromagnetic interference risks.

• Reliable Network Integration: Ensures seamless communication between controllers, I/O modules, and operator interfaces.

• Durable Construction: Designed for continuous industrial operation with robust housing.

• Flexible Mounting Options: Supports DIN rail or panel mounting for various installation needs.

• Status Indicators: LEDs provide real-time feedback on power, communication, and errors.

• Power Efficient: Consumes minimal power, reducing overall system load.

• Certified for Industrial Use: CE and FCC certifications ensure compliance with industrial standards.

FAQ

1. What type of communication interface does the ANB11D-226/BU2B use?

   It uses an optical Enhanced Serial Bus (ESB) interface.

2. What is the maximum data transfer rate supported by this unit?

   Up to 125 Mbps.

3. What power supply is required for the bus node unit?

   It operates on 24 VDC.

4. Can the unit be mounted on a DIN rail?

   Yes, it supports both DIN rail and panel mounting.

5. Does the unit have indicators for operational status?

   Yes, it has LEDs for power, communication, and error status.

6. Is the communication interface resistant to electromagnetic interference (EMI)?

   Yes, the optical fiber interface provides full EMI immunity.

7. What is the operating temperature range for this unit?

   0°C to 55°C.

8. Can this unit be integrated with CENTUM VP DCS systems?

   Yes, it is fully compatible with Yokogawa CENTUM VP systems.

9. What type of fiber connector is used?

   It uses an SC-type fiber-optic connector.

10. Is the unit suitable for continuous industrial operation?

    Yes, it is designed for long-term, continuous use in industrial environments.