Yokogawa EC401-10 ESB Bus Coupler Module

The Yokogawa EC401-10 ESB Bus Coupler Module is a critical communication component in the CENTUM VP integrated production control system. It connects the Field Control Unit (FCU) to the Node Units (ANB10S, ANB10D, ANT401, etc.) via the high-speed ESB (Enhanced Serial Bus). Designed specifically for N-IO/FIO systems, the EC401-10 supports both single and dual-redundant configurations to ensure system reliability and data integrity in industrial automation environments.

Technical Specifications

Applications

• Distributed Control Systems (DCS)

  Used in CENTUM VP systems for ensuring reliable communication between FCU and I/O node units.

• Process Automation

  Suitable for industries such as oil & gas, chemicals, power generation, and water treatment where secure and real-time communication is essential.

• Dual-Redundant Communication Paths

  Enables dual-bus communication to maintain continuous operation in critical process environments.

• High-Speed Data Transfer

  Efficiently transmits large volumes of I/O data at 128 Mbps, ideal for real-time control systems.

Advantages

• Robust Redundancy Support

  Dual-module configuration ensures zero downtime in case of single module failure.

• Compact and Lightweight

  With its slim profile and low weight (0.24 kg), the module is easy to install and maintain in control cabinets.

• Seamless Integration

  Fully compatible with Yokogawa’s CENTUM VP FIO/N-IO systems and processor modules.

• Industrial Hardened Design

  Available with G3 environmental option for harsh industrial settings.

• Supports Advanced Diagnostics

  Compatible with SEM (Sequence of Events Manager) for high-resolution event logging.

• Versatile Installation Options

  Can be installed in various Yokogawa FCU types with style code matching.

Frequently Asked Questions (FAQ)

Q1: What is the main function of the EC401-10 module?

A1: It serves as a communication interface between the Field Control Unit and the Node Unit over the ESB Bus.

Q2: How many node units can be connected to a single EC401-10?

A2: Up to 9 node units such as ANB10S, ANB10D, ANT401, ANT411, and ANT421.

Q3: Can the EC401-10 support dual-redundant operation?

A3: Yes, it supports dual-redundant ESB Bus connections when installed in both slots 7 and 8.

Q4: What is the maximum transmission speed?

A4: The transmission speed is 128 Mbps for I/O module data.

Q5: Is the EC401-10 compatible with all CENTUM VP processors?

A5: It is compatible with CP471 processors with style code S3 or later.

Q6: What is the transmission range supported by the module?

A6: The maximum cable length is 10 meters between modules.

Q7: What slot must the EC401-10 be installed in for single communication configuration?

A7: It must be installed in Slot 7 of the compatible FCU.

Q8: What is the current consumption of the EC401-10?

A8: The current consumption is 0.5 A.

Q9: Does the EC401-10 support Sequence of Events Manager (SEM)?

A9: Yes, style 2 or later versions of EC401 support SEM.

Q10: Is the module certified for explosion protection environments?

A10: Yes, the EC401-10 with the “-E” suffix is designed for explosion-protected installations.