Yokogawa EB402-10 ER Bus Master Module

The Yokogawa EB402-10 is an essential ER Bus Interface Master Module designed for system integration. This module seamlessly connects multiple ER Bus slave devices to a CENTUM VP or CS 3000 Distributed Control System (DCS). Moreover, it enables the DCS to centrally manage and control a wide array of connected field instruments. Consequently, it provides a reliable communication bridge between the control room and remote process areas.

Detailed Technical Specifications

The EB402-10 module delivers robust connectivity within a compact industrial package. Here are its precise technical parameters for network design and cabinet layout.

Parameter	Specification
Manufacturer & Model	Yokogawa EB402-10
Module Function	ER Bus Interface Master Module
Compatible DCS Platforms	CENTUM VP, CS 3000
Physical Layer Standard	IEEE 802.3 10BASE-2
Network Connector Type	BNC (Multiple Ports)
Communication Speed	10 Mbps
Max. Segment Distance	185 meters (with YCB141 cable)
Module Dimensions (H x W x D)	5.1 cm x 12.7 cm x 15.2 cm (2.0″ x 5.0″ x 6.0″)
Module Weight	0.3 kg (1 lb 9.0 oz)

Core Functionality and System Role

This master module actively manages data exchange on the ER Bus network. Therefore, it polls connected slave modules for input data and sends output commands from the DCS. Additionally, its multiple BNC ports allow for the creation of daisy-chained network segments, simplifying wiring.

The specified 185-meter distance supports flexible device placement across a plant floor. Furthermore, integrating the EB402-10 is crucial for expanding or maintaining the reach of your Yokogawa DCS. For comprehensive system safety, ensure your electrical design includes protection devices like the RMS-TSG-TZ-C Static Trip unit.

Engineered for Centralized Control and Reliability

Choosing the Yokogawa EB402-10 establishes a deterministic link between your DCS and field devices. This integration allows for precise monitoring and control of assets, from control valves to sensors like the PR6423/128-110. Ultimately, this module is a key component for achieving unified and efficient plant-wide automation.