Yokogawa EB401-10 S1 ER Bus Interface Master Module

The Yokogawa EB401-10 S1 is an ER Bus Interface Master Module designed specifically for integrating remote ER Bus Node Units with ESB Bus Node Units or Compact Field Control Units (FIO systems). It enables high-speed, reliable communication in distributed control systems (DCS), offering robustness and flexibility for demanding industrial automation environments. This module supports dual-redundancy configurations, ensuring enhanced system reliability and uptime.

The EB401 module is housed in a compact form factor and employs a 10BASE2 physical layer interface for connectivity. It is particularly well-suited for use with Yokogawa’s flagship CENTUM VP and ProSafe-RS systems, delivering critical communication functions in process industries such as oil & gas, power generation, and petrochemicals.

Technical Specifications

Applications

• Distributed control systems (DCS) in process automation

• Oil and gas processing plants

• Chemical and petrochemical facilities

• Power generation and utilities

• Water treatment systems

• High-availability field control systems

The EB401 is ideal for projects requiring high-speed and reliable communication between local and remote units over long distances. With its support for redundancy and explosion-proof variants, it fits both standard and hazardous industrial environments.

Advantages

• Robust Communication: Utilizes IEEE 802.3 10BASE2 standard with shielded BNC connections, supporting up to 185 meters of transmission.

• Flexible Deployment: Compatible with multiple Yokogawa node units including ESB and Compact Field Control Units.

• Dual-Redundancy Support: Ensures system reliability through redundant ER bus configurations.

• Explosion-Proof Variant: Optional model (-E suffix) designed for hazardous area applications.

• Compact Design: Small footprint saves panel space, making it suitable for space-constrained installations.

• Environmentally Durable: G3-compliant variant offers resistance to corrosive gases and harsh environments.

FAQ

Q1: What does the EB401-10 S1 module do?

A1: It acts as the ER Bus master interface to connect remote ER Bus Node Units to local or compact field units in Yokogawa’s DCS systems.

Q2: Can EB401 be used in explosive environments?

A2: Yes, the -E suffix variant of the EB401 is designed for use in explosive or hazardous areas.

Q3: What type of cable and connector does it use?

A3: It uses BNC connectors and supports YCB141 ER bus cable, conforming to IEEE 802.3 10BASE2.

Q4: Is redundancy supported with this module?

A4: Yes, two EB401 modules can be installed for a dual-redundant ER bus configuration.

Q5: What is the maximum communication distance supported?

A5: The maximum distance is 185 meters when using the designated ER bus cable (YCB141).

Q6: Can it be used with both ESB Bus Node and Compact Field Control Units?

A6: Yes, it is compatible with ANB10S/D, AFF50S/D, and AFV10S/D units.

Q7: What is the power consumption of this module?

A7: The module consumes approximately 0.7 A.

Q8: Are terminators and connectors included?

A8: Yes, each module is supplied with one T-type connector (YCB146) and two terminators (YCB148).

Q9: What is the physical size of the EB401?

A9: The dimensions are 144.65 mm x 130 mm x 32.8 mm.

Q10: How much does the EB401 weigh?

A10: The module weighs approximately 0.3 kg.