Yokogawa ANT401-50 Optical ESB Bus Repeater Module

The Yokogawa ANT401-50 Optical ESB Bus Repeater Module is a specialized communication module designed to enhance the transmission of ESB (Enhanced Simplex Bus) signals over long distances within industrial automation systems. By employing advanced optical technology, it serves as a repeater that regenerates, amplifies, and transmits signals across extended networks.

Technical Specifications

Product Applications

The ANT401-50 Optical ESB Bus Repeater Module is designed for use in industrial automation and process control systems that require extended communication networks. Its main applications include:

• Distributed Control Systems (DCS): Ensures reliable communication between controllers and I/O modules in large plants.

• Safety Instrumented Systems (SIS): Facilitates fault-tolerant signal communication in ProSafe-RS environments.

• Power Plants: Used for extending communication networks in thermal, nuclear, and renewable energy facilities.

• Petrochemical Plants: Maintains stable communication across wide areas with high EMI/RFI interference.

• Pharmaceutical Manufacturing: Provides secure data transfer for regulatory-compliant operations.

• Long-Distance ESB Networking: Extends coverage between field units separated by large plant areas.

Product Advantages

• Enhanced Communication Reliability: Optical fiber reduces susceptibility to noise, EMI, and signal degradation.

• Long-Distance Transmission: Supports communication across extended plant layouts without performance loss.

• High-Speed Data Integrity: Maintains consistent data throughput for mission-critical applications.

• Compact and Lightweight Design: Optimized for easy integration within Yokogawa’s ESB architecture.

• Seamless System Integration: Fully compatible with CENTUM VP and ProSafe-RS systems.

• Robust Environmental Tolerance: Performs reliably under a wide range of temperature and humidity conditions.

• Scalability: Allows system designers to expand plant communication networks without redesigning the entire infrastructure.

FAQ

Q1: What communication protocol does the ANT401-50 support?

A1: It supports the Enhanced Simplex Bus (ESB) communication protocol used in Yokogawa’s DCS and safety systems.

Q2: Can the ANT401-50 be used for both control and safety systems?

A2: Yes, it is compatible with both CENTUM VP control systems and ProSafe-RS safety systems.

Q3: How does the module handle signal regeneration?

A3: The module amplifies and re-times incoming signals before retransmitting them, ensuring data integrity.

Q4: What type of optical fiber is recommended for use?

A4: Multi-mode optical fibers are typically recommended for optimal performance and distance support.

Q5: Does the module support redundant configurations?

A5: Yes, it can be configured in redundant network setups to enhance system reliability.

Q6: How is synchronization ensured across ESB nodes?

A6: The module aligns signal timing to maintain synchronized communication across distributed nodes.

Q7: Is the module hot-swappable within the system rack?

A7: Yes, it is designed to allow hot-swapping for maintenance without system downtime.

Q8: What are the maximum transmission distances supported?

A8: Up to 2 km per segment, depending on fiber type and environmental conditions.

Q9: How does it interact with other ESB modules in the system?

A9: It functions as a repeater, extending signals between ESB bus nodes while maintaining protocol compatibility.

Q10: What diagnostic features are included?

A10: The module includes status indicators and error detection functions to help operators identify communication faults.