Technical Specifications

• Part Number: 51304584‑100 (51304584100)

• Alternative ID: EPDGP Board, EXCH IO Card, Peripheral Interface Module

• Module Type: Peripheral Gateway I/O Interface (EPDGP/EPDG2)

• System Compatibility: Honeywell TDC3000 / TPS (LCN network, EPDGP/EPDG2 gateways)

• Processor: On‑board 16‑bit microcontroller

• Memory: 128 KB RAM, 256 KB Flash (firmware)

• Host Interface: LCN (1 Mbps, electrical, BNC 75Ω)

• Peripheral Interface: 3 × DB‑25 ports (RS‑232/RS‑485 configurable)

• I/O Channels: 16 digital points (8 input / 8 output, configurable)

• Input Voltage: 24 VDC (field‑side)

• Output Type: Solid‑state transistor outputs

• Isolation: 1500 VAC (channel‑to‑backplane)

• Power: 5 VDC ±5%, 400 mA (from backplane)

• Power Consumption: ~2 W

• Operating Temperature: -20°C to +70°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 178 × 127 × 25 mm

• Weight: ~0.18 kg

• Coating: Conformal coated (for harsh environments)

• Certifications: CE, RoHS compliant

• Revisions: Common Rev G (hardware/firmware)

• Status: Discontinued (replaced by updated EPDGP interface module)

Interface & Communication Configuration

• Host Interface: LCN electrical (BNC, 75Ω) – connects to TDC3000/TPS LCN network

• Peripheral Ports: 3 × DB‑25 (RS‑232 for point‑to‑point; RS‑485 for multi‑drop, up to 1 Mbps)

• Protocol Support: LCN (proprietary); Modbus RTU, ASCII, DF1 (peripheral side)

• Diagnostics: 3 on‑board LEDs (Power, LCN Link, Peripheral Comm); remote alarm reporting via LCN

• Hot Swap: Yes (replace without system shutdown)

• Compatibility: Works with EPDGP and EPDG2 gateway nodes; interoperable with LCN A/B interface boards (51304542/44 series)

Core Functions

1. EPDGP Gateway Interface: Dedicated I/O and communication board for EPDGP/EPDG2 peripheral gateways.

2. Protocol Conversion: Translates LCN proprietary protocol to industry‑standard protocols (Modbus RTU, ASCII) for external subsystems.

3. Digital I/O Control: Provides 16 configurable digital points (8DI/8DO) for direct field device interfacing.

4. Data Buffering & Routing: Buffers high‑volume data between LCN and peripherals, ensuring reliable transmission.

5. Fault Isolation & Diagnostics: Isolates peripheral communication faults from the LCN; provides real‑time status monitoring.

Application Scenarios

• TDC3000/TPS DCS: Integrating third‑party PLCs, custom peripherals, or legacy systems via EPDGP/EPDG2 gateways.

• Process Automation: Chemical, petrochemical, oil & gas, power generation (multi‑vendor system integration).

• Legacy System Upgrades: Connecting older external controllers to modern TDC3000/TPS installations.

• Harsh Industrial Environments: Conformal coating and wide temperature range suit high‑noise, dusty, or extreme‑temperature areas.

Compatibility Note

• System Compatibility: Honeywell TDC3000/TPS (requires EPDGP/EPDG2 gateway node)

• Replacement: 51304584‑100 → Updated EPDGP interface module (current part number varies by revision)

• Firmware: Requires TDC3000 firmware Rev 300+ and EPDGP firmware Rev 150+ for full functionality

• Key Difference: 51304584‑100 = EPDGP peripheral gateway I/O board; 51304542/44 series = LCN A/B cable interface boards (for remote I/O panels)