YOKOGAWA EC401-10 ESB Bus Coupler Module

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YOKOGAWA EC401-10 ESB Bus Coupler Module Product Information

1. Product Description

2. Detailed Parameters

• Communication Specifications:
  • Bus Interface: ESB (Ethernet Serial Bus) for connecting distributed I/O modules
  • Ethernet Ports: 2× 10/100BASE-TX (redundant), supports Ethernet/IP protocol
  • Data Transfer Rate: 100Mbps (full-duplex)
  • Communication Distance: Up to 100m via Cat5e/Cat6 Ethernet cable
  • Protocol Support: Modbus TCP/IP, Ethernet/IP, and Yokogawa proprietary protocols
• Electrical Specifications:
  • Power Input: 24V DC ±10%
  • Power Consumption: ≤10W
  • Isolation: 2kV AC (between Ethernet ports and ESB bus)
• Mechanical Specifications:
  • Dimensions: 100mm (W) × 160mm (H) × 120mm (D)
  • Weight: ~0.8kg
  • Mounting: DIN rail (35mm standard) or panel mount
  • Protection Class: IP20 (for cabinet installation)
• Environmental Specifications:
  • Operating Temperature: -20°C to +70°C
  • Storage Temperature: -40°C to +85°C
  • Humidity: 5-95% RH (non-condensing)
  • Vibration Resistance: 10g (10-500Hz, IEC 60068-2-6)
  • Shock Resistance: 15g (11ms, IEC 60068-2-27)
• Certifications:
  • CE (EMC/LVD), UL 508, IEC 61131-2, ATEX (for hazardous areas)

3. Advantages and Features

1. Redundant Communication: Dual Ethernet ports with automatic failover ensure continuous data transmission even if one port fails, critical for fault-tolerant systems.
2. High Compatibility: Seamlessly integrates with Yokogawa’s CENTUM VP, ProSafe-RS, and third-party PLCs via standard protocols (Ethernet/IP, Modbus TCP/IP).
3. Hot-Swap Capability: Allows module replacement during system operation without disrupting I/O communication, minimizing downtime.
4. Advanced Diagnostics: Built-in self-diagnostics for network faults (e.g., cable disconnection, port errors) with LED indicators for status monitoring.
5. Wide Operating Range: Withstands extreme temperatures (-20°C to +70°C) and harsh industrial environments, suitable for outdoor or unconditioned cabinets.
6. Easy Configuration: Configurable via Yokogawa’s Centum VP Engineering Tool or web-based interface, reducing setup time.

4. Application Fields

• Process Automation: Connects distributed I/O modules (e.g., ADV161-P00, ADV561-P00) to DCS in petrochemical, pharmaceutical, and chemical plants.
• Power Generation: Links turbine sensors, boiler controls, and auxiliary equipment to central monitoring systems in thermal, nuclear, or renewable power plants.
• Oil & Gas: Facilitates data exchange between wellhead sensors, pipeline valves, and control rooms in upstream and downstream operations.
• Water/Wastewater: Integrates treatment plant sensors (flow, pH, level) with SCADA systems for remote monitoring and control.
• Manufacturing: Bridges shop-floor I/O (e.g., conveyor sensors, robotic controllers) with MES systems in automotive and electronics production lines.

5. Notes

1. Installation Requirements:
   • Use shielded Ethernet cables (Cat5e/Cat6) with drain wires connected to the module’s grounding terminal (FG) to reduce EMI.
   • Maintain ≥100mm separation between Ethernet cables and high-voltage power lines.
   • Mount vertically with ≥30mm clearance for heat dissipation.
2. Network Configuration:
   • Assign unique IP addresses to avoid conflicts in redundant networks.
   • Enable spanning tree protocol (STP) on upstream switches to prevent network loops.
3. Maintenance:
   • Inspect Ethernet connectors quarterly for tightness and corrosion.
   • Replace modules every 8-10 years or after 60,000 hours of operation (whichever comes first).
   • Update firmware annually using Yokogawa’s official tools to address security and compatibility issues.
4. Safety Compliance:
   • For hazardous areas (ATEX Zone 2), ensure installation in explosion-proof enclosures per IEC 60079-15.
   • Follow IEC 61508 SIL 2 guidelines for safety-critical loops.
5. Redundancy Setup:
   • Connect redundant Ethernet ports to separate switches with independent power supplies to avoid single points of failure.

The structure and details of the product：

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