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Yokogawa EC401-50 ESB Bus Coupler Module

Product Introduction: A high-speed communication module for Yokogawa’s CENTUM VP DCS system, serving as an interface between Field Control Units (FCU) and Node Units via the ESB (Extended Serial Bus). It enables reliable data exchange in distributed control architectures, supporting both standard and redundant configurations.

Technical Specifications

  • Function: ESB Bus Coupler for N-IO/FIO systems (1-port)
  • Communication Speed: 128 Mbps high-speed data transmission

Detailed content

  • Transmission Distance: Maximum 10 meters between connected units
  • Redundancy: Supports dual-redundant ESB bus configuration
  • Compatibility: Works with FCU models AFV30S/D, AFV40S/D, A2FV50S/D, A2FV70S/D
  • Isolation: Galvanic isolation between bus segments
  • Dimensions: 100 × 120 × 25 mm
  • Weight: 0.3 kg
  • Certifications: CE, UL approved
  • Operating Temperature: -20°C to +70°C

    Key Features

  • High-Speed Communication: 128 Mbps bus ensures fast, deterministic data transfer.
  • Redundancy Support: Dual module configuration eliminates single points of failure.
  • Software Grouping: Supports flexible I/O configuration and remote modification.
  • N-IO Compatibility: Works with Yokogawa’s N-IO universal I/O system.
  • Hot-Swappable: Allows replacement without system shutdown.
  • Diagnostic LEDs: Visual status indication for quick troubleshooting.
  • Compact Design: Space-efficient module for DCS racks.

    Applications

  • CENTUM VP DCS system communication infrastructure.
  • Connection between Field Control Units and remote I/O nodes.
  • Large-scale process control systems in refineries and chemical plants.
  • Power generation plant distributed control networks.
  • Petrochemical complex integrated control systems.

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