Yokogawa ANT502-50 CENTUM VP Optical ESB Bus Repeater Slave Module

Product Overview

The Yokogawa ANT502-50 serves as the Optical ESB Bus Repeater Slave Module for the CENTUM VP Distributed Control System (DCS). This module resides in the remote I/O node, where it receives optical signals from the Master module (ANT401) and converts them back into electrical signals for the local backplane. This hardware facilitates the long-distance extension of the high-speed ESB bus, allowing for decentralized control architectures across large industrial sites. We supply this unit as 100% Brand New and Original, manufactured in Japan, ensuring peak performance and system-wide synchronization.

Part Number Breakdown

The ANT502-50 nomenclature follows Yokogawa's precise engineering designations for optical bus hardware:

Technical Specifications

The ANT502-50 utilizes high-precision optical transceivers to maintain the high bandwidth required for real-time DCS communication.

• Communication Protocol: Enhanced Service Bus (ESB).

• Dimensions: 3.2 cm (W) x 11.4 cm (D) x 6.3 cm (H).

• Module Weight: 0.2 kg.

• Transmission Media: Fiber Optic Cable.

• Transmission Distance: Supports long-range I/O node placement (up to 5km/50km depending on configuration).

• System Interface: Plugs into the remote I/O unit (ERBUS) slot.

• Country of Origin: Japan.

• Condition: Guaranteed 100% Brand New Original.

Engineering Advantages

The ANT502-50 eliminates common infrastructure limitations in process automation:

• Inter-Building Electrical Isolation: By utilizing fiber optic transmission, the ANT502-50 provides total galvanic isolation between the central control room and remote nodes. This protects the DCS from ground potential differences and lightning-induced surges across the facility.

• Zero-Interference Communication: The optical link remains immune to electromagnetic interference (EMI) and radio frequency interference (RFI). This ensures stable data flow even when the bus cables run alongside high-voltage motor starters or variable frequency drives (VFDs).

• Maintained Loop Determinism: This module ensures that remote I/O modules operate with the same millisecond-level precision as local rack hardware. It maintains the deterministic nature of the ESB bus, ensuring critical control loops respond without latency.

• Compact Footprint: At only 3.2 cm wide and weighing a mere 0.2 kg, the module minimizes the physical load on the remote rack. This compact design allows engineers to maximize the number of available slots for functional I/O modules within a single cabinet.

FAQs

• What is the required pairing for the ANT502-50?

  The ANT502-50 (Slave) must connect to an ANT401 (Master) module via fiber optic cabling. It cannot operate as a standalone unit or interface directly with the CPU without a Master repeater.

• Does this module support redundant bus configurations?

  Yes. You can install two ANT502-50 modules in a redundant remote I/O node. This ensures that the remote segment remains active if one fiber optic link or module fails.

• What type of fiber connectors does this module use?

  The ANT502 series typically utilizes standard optical connectors suitable for quartz glass fiber. Always ensure the fiber end-faces are clean and verified for signal loss before commissioning.

• Is this a genuine Yokogawa part?

  Absolutely. We supply only 100% Brand New and Original Yokogawa hardware. Every ANT502-50 ships in its original factory packaging with full serial number traceability and Japanese manufacturing documentation.