EC402-50 S1 YOKOGAWA ESB Bus Coupler Module

The Yokogawa EC402-50 S1 ESB Bus Coupler Module is a communication interface designed to connect Field Control Units (FCUs) with Node Units via the ESB (Electronic Serial Bus) in Yokogawa's N-IO/FIO systems. It facilitates high-speed data transmission between control systems and I/O modules, ensuring efficient and reliable communication in industrial automation environments.

Q1: What is the primary function of the EC402-50 S1 module?

A: The EC402-50 S1 serves as an ESB bus master interface, connecting Field Control Units to Node Units within the ESB network, facilitating high-speed data communication between control systems and I/O modules.

Q2: How many Node Units can be connected to the EC402-50 S1?

A: The module supports up to 9 units on both the upper and lower sides, with a total maximum of 13 units, depending on the system configuration.

Q3: Does the EC402-50 S1 support redundant configurations?

A: Yes, by installing two EC402-50 S1 modules in designated slots of the FCU, a dual-redundant ESB bus can be configured, ensuring continued operation even if one module fails.