EC402-50 YOKOGAWA ESB Bus Coupler Module

The Yokogawa EC402-50 ESB Bus Coupler Module is a high-performance communication interface designed for integration within Yokogawa’s CENTUM VP Distributed Control System (DCS). It facilitates seamless data exchange between Field Control Units (FCUs) and I/O Node Units over the ESB (Ethernet Switch Bus) network, ensuring reliable and efficient industrial automation.

Q1: What is the primary function of the EC402-50 module?

A1: The EC402-50 acts as a communication bridge between the Field Control Unit and Node Units within the ESB network, enabling efficient data transfer and system integration.

Q2: How many Node Units can be connected to the EC402-50?

A2: It supports up to 9 units on both the upper and lower sides, with a total of up to 13 units, depending on the FCS database configuration.

Q3: What are the supported communication protocols?

A3: The module supports Ethernet, Modbus, and Profibus protocols, allowing for flexible integration with various industrial systems.