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ABB EI811F (Order Code: 3BDH000020R1) Ethernet Module 

1. Key Parameters

• Product Model: EI811F
• Order Code/Part Number: 3BDH000020R1 (unique identifier for procurement and AC 500 compatibility verification)
• Product Series: ABB AC 500-S/eCo Ethernet Communication Modules
• Core Function: Establishes Ethernet connectivity for AC 500 PLCs; enables data transmission with industrial systems via standard protocols; supports real-time monitoring and control
• Communication Specifications:
  • Protocols Supported: Modbus-TCP (client/server), TCP/IP, UDP/IP, and ABB proprietary PLC-to-PLC communication protocols
  • Network Interface: 1× 10/100Base-TX Ethernet port (RJ45; copper cabling support)
  • Data Transfer Rate: 10/100Mbps (auto-negotiation; full-duplex mode for bidirectional data flow)
  • Redundancy Support: Optional (via external network switches; compatible with Media Redundancy Protocol (MRP) for fault tolerance)
  • Maximum Connections: 32 concurrent TCP/IP connections (accommodates multiple HMI clients or monitoring devices)
  • Latency: ≤3ms (for real-time control signals; ensures timely response to process changes)
• Electrical Specifications:
  • Power Supply (Backplane): 5V DC (from AC 500 PLC rack power supply; typical current: 0.2A; maximum current: 0.3A)
  • Power Consumption: ≤1.5W (total, including communication and processing; low heat generation)
  • Isolation: 1kVrms (between Ethernet port and PLC backplane; prevents ground loops and noise interference)
  • Surge Protection: IEC 61000-4-5 (±2kV contact discharge; ±4kV air discharge for Ethernet port)
  • EMC Immunity: Compliant with IEC 61000-6-2 (industrial environment); resistant to EMI from motors, drives, and power cables
• Mechanical Specifications:
  • Housing Type: Reinforced flame-retardant plastic (UL94 V-0; for mechanical strength and EMI shielding)
  • Dimensions (W×H×D): 86.1mm × 102mm × 58.5mm (1-module width; fits AC 500 standard DIN rail racks)
  • Mounting: DIN rail-mounted (35mm standard DIN rail per EN 60715) + backplane connector (for PLC integration)
  • Weight: Approximately 160g
  • LED Indicators:
    • Power (PWR): Green (module powered on); Red (power fault)
    • Backplane Communication (BUS): Green (normal communication with PLC); Red (communication fault)
    • Ethernet (ETH): Green (link active); Blinking Green (data transmission); Red (link fault or port error)
• Environmental Ratings:
  • Operating Temperature Range: -40℃~+70℃ (-40℉~158℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃)
  • Vibration Resistance: 10~500Hz, 2g acceleration (IEC 60068-2-6; no communication loss or mechanical damage)
  • Shock Resistance: 30g acceleration (11ms duration, IEC 60068-2-27; maintains port integrity and signal quality)
  • Ingress Protection: IP20 (suitable for installation in enclosed control cabinets)
• Compliance Standards: IEEE 802.3 (Ethernet standards), IEC 61131-3 (industrial programmable controllers), UL 508 (industrial control safety), CE, RoHS

2. Key Features

• Simplified Ethernet Connectivity: Single 10/100Mbps Ethernet port provides cost-effective, reliable connectivity for AC 500 PLCs in applications where dual-port redundancy is not required (e.g., small control panels, standalone machines).
• Modbus-TCP Focus: Optimized for Modbus-TCP (industry’s most widely used open protocol), enabling seamless integration with thousands of third-party devices (e.g., Schneider HMIs, Allen-Bradley data loggers, generic SCADA platforms) without custom software.
• High Connection Efficiency: Supports 32 concurrent TCP/IP connections, allowing the PLC to communicate with multiple monitoring or control devices simultaneously—ideal for distributed HMI setups (e.g., plant floor HMI + remote maintenance PC).
• Plug-and-Play AC 500 Integration: Designed for direct compatibility with AC 500-S/eCo racks; configuration via ABB Automation Builder software (CODESYS-based) simplifies protocol setup, IP addressing, and connection mapping—no specialized networking expertise required.
• Robust Industrial Design: UL94 V-0 flame-retardant housing, wide temperature range (-40℃~+70℃), and vibration/shock resistance ensure reliable operation in harsh settings (e.g., manufacturing floors, mining auxiliary systems, outdoor cabinets with climate control).
• EMI Immunity & Isolation: 1kVrms isolation between the Ethernet port and backplane, combined with surge protection, minimizes interference from industrial noise (e.g., variable-speed drive switching, motor startup transients) and prevents damage from voltage spikes.
• Low Power & Compact Size: 1.5W power consumption reduces heat buildup in dense rack configurations, while the 1-module width saves space for other I/O or communication modules—critical for compact control panels.

3. Application Fields

• Small-to-Medium Automation Systems: Primary application—enables Ethernet connectivity for AC 500 PLCs in:
  • Machine Tool Control: Connects CNC machine PLCs to operator HMIs and production monitoring software (e.g., OEE trackers) via Modbus-TCP.
  • Packaging Machinery: Transmits machine status (e.g., fill rate, error codes) to plant floor HMIs and enables remote diagnostics via Ethernet.
  • Standalone Process Skids: Links PLCs in water treatment skids, chemical dosing units, or small reactors to local SCADA nodes.
• Industrial Data Monitoring: Collects and transmits real-time data to analytics or compliance systems in:
  • Food & Beverage Processing: Sends temperature, pressure, and batch timing data to GMP-compliant data loggers (via Modbus-TCP).
  • Building Automation: Connects AC 500-eCo PLCs (controlling HVAC, lighting, or access control) to building management systems (BMS).
• Remote Maintenance: Facilitates secure remote access to PLCs for troubleshooting and firmware updates in:
  • Distributed Manufacturing Sites: Enables technicians to access machine PLCs via VPN (over Ethernet) without on-site visits.
  • Renewable Energy Auxiliaries: Supports remote monitoring of solar inverter cooling systems or wind turbine lubrication control PLCs.
• Legacy System Upgrades: Adds Ethernet capability to older AC 500-based systems (e.g., retrofitting 2000s-era control panels) to integrate with modern HMIs or cloud-based monitoring platforms—avoiding full system replacement.

4. Precautions

• PLC Compatibility: Use exclusively with ABB AC 500-S and AC 500-eCo PLC systems. Installation in non-AC 500 racks (e.g., Siemens S7, Rockwell ControlLogix) will cause backplane communication failure and potentially damage the module or PLC.
• Cable Compliance: Use shielded Cat5e or higher Ethernet cables (24AWG, twisted-pair) compliant with IEEE 802.3. Unshielded or low-grade cables (e.g., Cat5) increase EMI susceptibility and signal loss, especially in noisy industrial environments.
• Network Security: For remote access applications, use industrial firewalls or VPNs to protect the module from unauthorized access. Do not expose the Ethernet port to public networks—unsecured connections risk PLC tampering or data breaches.
• Grounding Requirements: Connect the module’s ground terminal to the AC 500 rack’s common ground (resistance ≤1Ω). Ground the Ethernet cable shield at both ends (via shielded RJ45 connectors) to maximize EMI protection.
• IP Address Management: Assign a unique static IP address to the module (via Automation Builder) to avoid conflicts with other network devices. Dynamic IP (DHCP) is not recommended for control applications, as address changes can disrupt communication.
• Firmware Compatibility: Ensure the module’s firmware version matches the AC 500 PLC’s firmware. Mismatched firmware causes protocol errors (e.g., Modbus-TCP connection drops)—update firmware via Automation Builder before commissioning.
• Maintenance Checks: Inspect quarterly:
  • Verify LED status (no red faults; ETH LED blinking for active data transmission).
  • Test Ethernet connectivity by pinging the module’s IP address from a networked PC—consistent packet loss indicates cable or port issues.
  • Clean the Ethernet port with compressed air (avoid moisture) to remove dust or debris—dirty connectors cause intermittent link failures

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