GE D20 EME2400-21004 Ethernet Communication and Expansion Module

Specific Parameters

Electrical Parameters
Supply Voltage: 24V DC ±10%, supporting dual-channel redundant power supply
Communication Interfaces: 2×10/100 Base-T Ethernet ports (RJ45), 1×RS485 (Modbus RTU)
Communication Rate: Ethernet 10/100Mbps (auto-negotiation), RS485 up to 115.2kbps
Supported Protocols: IEC 61850, Modbus TCP/RTU, DNP3.0, TCP/IP
Storage Capacity: 16MB battery-backed SRAM, supporting data retention ≥1000 hours after power-off
Isolation Level: 2.5kV AC between signal channels and system (1 minute), 1.5kV AC for Ethernet ports (1 minute)
Protection Functions: Overcurrent protection, short circuit protection, overvoltage protection, ESD protection (±15kV contact discharge)
Power Consumption: ≤10W under normal operation
Environmental Parameters
Operating Temperature: -40°C to 70°C
Storage Temperature: -45°C to 85°C
Relative Humidity: 5% to 95% (non-condensing, no dew formation)
EMC Immunity: Compliant with EN 61326-1 industrial grade standard, common mode rejection ratio ≥120dB
Vibration Resistance: 10-500Hz, 10g acceleration (compliant with IEC 60068-2-6)
Shock Resistance: 30g acceleration, 11ms duration (compliant with IEC 60068-2-27)
Protection Class: IP20 (module itself)

Product Performance

D20 EME2400-21004 adopts a dedicated Ethernet control chip with data transmission delay ≤5ms, supporting star/ring topology, which can connect 32 external devices simultaneously to ensure parallel transmission of control signals and batch data. Integrated with multi-protocol conversion engine, the conversion response time between different protocols is ≤2ms, adapting to heterogeneous industrial network interconnection needs.

The battery-backed storage unit can cache 5000 time-stamped event records, with data retention ≥1000 hours after power-off for easy fault tracing. Built-in real-time self-diagnostic system, it can monitor communication link on-off, protocol exceptions, power status and storage unit health, with fault diagnosis coverage ≥99%, triggering LED alarm within 10ms after fault occurrence.

Adopting industrial-grade anti-interference circuit design, the communication packet loss rate is <0.01% in strong electromagnetic environments. Fully compatible with D20ME main controller and D20C I/O modules, it supports online parameter configuration and firmware upgrade via ToolboxST software, enabling system expansion without shutdown. The mean time between failures (MTBF) is ≥400,000 hours, adapting to long-term continuous operation scenarios.

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