Yokogawa ANB10D-415/CU2N ESB Bus Node Units

Product Introduction

The Yokogawa ANB10D-415/CU2N ESB Bus Node Unit is a high-performance communication interface module designed for use within Yokogawa’s distributed control systems (DCS), particularly in the CENTUM and ProSafe series. This unit serves as a critical link between the field control stations and remote I/O nodes, utilizing the ESB (Extension Serial Bus) communication protocol to ensure high-speed, deterministic data exchange.
It is engineered for applications requiring reliable, real-time data transfer in complex industrial environments such as oil & gas, petrochemical, power generation, water treatment, and manufacturing plants. The module supports hot-swap functionality, minimizing downtime during maintenance, and is built with robust electromagnetic compatibility and environmental resistance to operate reliably in harsh conditions.
By integrating seamlessly into Yokogawa’s control architecture, the ANB10D-415/CU2N helps operators achieve improved system scalability, reduced wiring costs, and enhanced flexibility in I/O distribution without compromising communication stability.

Product Parameters

Product Applications

• Distributed Control Systems (DCS) – Seamlessly integrates with Yokogawa CENTUM VP and ProSafe-RS systems for remote I/O connectivity.

• Oil & Gas Industry – Supports reliable communication in offshore platforms, refineries, and LNG plants.

• Power Generation – Provides stable I/O communication in thermal, hydro, and nuclear plants.

• Water & Wastewater Treatment – Enables distributed monitoring and control in municipal and industrial facilities.

• Chemical & Petrochemical – Ensures fast, secure, and reliable process data transfer in hazardous environments.

• Manufacturing Automation – Facilitates flexible I/O distribution in large-scale factory automation systems.

Product Advantages

• High-Speed Communication – Supports ESB protocol for fast, deterministic, and secure data exchange.

• Flexible System Integration – Easily connects to remote I/O racks, reducing wiring and installation costs.

• Robust Reliability – Designed to withstand harsh industrial conditions with strong EMC protection.

• Hot-Swap Support – Enables module replacement without system shutdown, reducing downtime.

• Scalable Architecture – Allows system expansion without major infrastructure changes.

• Reduced Maintenance Effort – Modular design simplifies inspection and troubleshooting.

FAQ

1. What communication protocol does the ANB10D-415/CU2N use for data transfer?
   The unit uses Yokogawa’s ESB (Extension Serial Bus) protocol, which is a high-speed, deterministic, and noise-immune communication standard optimized for distributed I/O in industrial control systems.

2. How many remote I/O racks can be connected through one ESB Bus Node Unit?
   Depending on the system configuration, a single ANB10D-415/CU2N can typically support up to 8 remote I/O racks in a daisy-chain topology without degrading communication performance.

3. Does the unit support redundant communication paths for increased reliability?
   Yes. It supports dual-redundant ESB connections, ensuring continuous operation even if one communication path fails. The switchover is seamless and does not interrupt process data exchange.

4. What is the maximum allowable cable length for ESB connections?
   The maximum cable length depends on the baud rate and cable specifications, but under standard conditions, up to 500 meters per segment can be achieved using Yokogawa-approved shielded twisted-pair cables.

5. Is the ANB10D-415/CU2N compatible with both CENTUM VP and ProSafe-RS systems?
   Yes. It is fully compatible with CENTUM VP for process control applications and ProSafe-RS for safety instrumented systems, allowing integration within mixed safety and process environments.

6. What diagnostic features are available for monitoring communication health?
   The unit provides built-in self-diagnostics, link status monitoring, communication error counters, and alarm outputs that can be accessed via the system engineering interface.

7. Can the unit operate in hazardous area environments with proper certification?
   Yes. When installed with certified enclosures and in compliance with IECEx or ATEX standards, it can be deployed in Zone 2 hazardous areas.

8. What is the latency of data transfer under full load conditions?
   Under maximum I/O load, the typical communication latency is less than 10 milliseconds, ensuring near real-time process response.

9. How does the unit handle communication error detection and recovery?
   The unit uses cyclic redundancy checks (CRC), watchdog timers, and automatic retry mechanisms to detect and recover from communication errors without manual intervention.

10. Does the device support firmware upgrades in the field without removing it from the system?
    Yes. Firmware can be updated via the engineering workstation over the ESB network, with no need to remove the module from its mounting location.

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FAQ

1. What communication protocol does the ANB10D-415/CU2N use for data transfer?
   The unit uses Yokogawa’s ESB (Extension Serial Bus) protocol, which is a high-speed, deterministic, and noise-immune communication standard optimized for distributed I/O in industrial control systems.

2. How many remote I/O racks can be connected through one ESB Bus Node Unit?
   Depending on the system configuration, a single ANB10D-415/CU2N can typically support up to 8 remote I/O racks in a daisy-chain topology without degrading communication performance.

3. Does the unit support redundant communication paths for increased reliability?
   Yes. It supports dual-redundant ESB connections, ensuring continuous operation even if one communication path fails. The switchover is seamless and does not interrupt process data exchange.

4. What is the maximum allowable cable length for ESB connections?
   The maximum cable length depends on the baud rate and cable specifications, but under standard conditions, up to 500 meters per segment can be achieved using Yokogawa-approved shielded twisted-pair cables.

5. Is the ANB10D-415/CU2N compatible with both CENTUM VP and ProSafe-RS systems?
   Yes. It is fully compatible with CENTUM VP for process control applications and ProSafe-RS for safety instrumented systems, allowing integration within mixed safety and process environments.

6. What diagnostic features are available for monitoring communication health?
   The unit provides built-in self-diagnostics, link status monitoring, communication error counters, and alarm outputs that can be accessed via the system engineering interface.

7. Can the unit operate in hazardous area environments with proper certification?
   Yes. When installed with certified enclosures and in compliance with IECEx or ATEX standards, it can be deployed in Zone 2 hazardous areas.

8. What is the latency of data transfer under full load conditions?
   Under maximum I/O load, the typical communication latency is less than 10 milliseconds, ensuring near real-time process response.

9. How does the unit handle communication error detection and recovery?
   The unit uses cyclic redundancy checks (CRC), watchdog timers, and automatic retry mechanisms to detect and recover from communication errors without manual intervention.

10. Does the device support firmware upgrades in the field without removing it from the system?
    Yes. Firmware can be updated via the engineering workstation over the ESB network, with no need to remove the module from its mounting location.

Recommended Related Models (Same Series or Similar)

Popular Yokogawa Models (Same Brand)

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