Technical Specifications

• Part Number: 51304584‑200 (51304584200)

• Alternative ID: EPDGP I/O Card, EXCH IO Board, Peripheral Gateway Interface Module

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

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

• Processor: On‑board 16‑bit microcontroller (enhanced ESD protection)

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

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

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

• I/O Channels: 16 digital points (8DI/8DO, isolated, 24 VDC field‑side)

• Output Type: Solid‑state transistor outputs (250 mA max per channel)

• Isolation: 1500 VAC (channel‑to‑backplane), 2500 VAC (surge immunity)

• Power: 5 VDC ±5%, 420 mA (from backplane)

• Power Consumption: ~2.1 W

• Operating Temperature: -25°C to +75°C (extended range vs. Rev 100)

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

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

• Weight: ~0.23 kg

• Coating: Conformal coated (UV‑resistant, harsh environment grade)

• Certifications: CE, RoHS, UL 508 compliant

• Revisions: Common Rev G (hardware/firmware)

• Status: Discontinued (replaced by 51304584‑300; new surplus/repair available)

Interface & Communication Configuration

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

• Peripheral Ports: 3 × DB‑25 (RS‑232: point‑to‑point up to 115.2 kbps; RS‑485: multi‑drop up to 1 Mbps, 32 nodes max)

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

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

• Hot Swap: Yes (replace without system shutdown; LCN auto‑reconnect)

• Compatibility: Fully interoperable with EPDGP/EPDG2 gateways; backward compatible with 51304584‑100 (drop‑in replacement); works with LCN A/B interface boards (51304542/44 series)

Core Functions

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

2. Protocol Conversion: Translates LCN proprietary protocol to industry‑standard protocols (Modbus RTU, ASCII) for third‑party PLCs, HMIs, and legacy subsystems.

3. Digital I/O Control: Provides 16 isolated digital points (8DI/8DO) for direct interfacing with 24 VDC field devices (sensors, relays, contactors).

4. Data Buffering & Routing: 128 KB RAM buffers high‑volume data between LCN and peripherals, ensuring reliable transmission during network fluctuations.

5. Enhanced Fault Protection: Upgraded surge/ESD isolation protects against electrical noise and voltage spikes; real‑time diagnostics isolate peripheral faults from the LCN.

Application Scenarios

• TDC3000/TPS DCS Integration: Connecting third‑party PLCs (Siemens, Allen‑Bradley), custom peripherals, or legacy systems via EPDGP/EPDG2 gateways.

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

• Harsh Industrial Environments: Extended temperature range (-25°C to +75°C) and conformal coating suit dusty, humid, or extreme‑temperature facilities.

• Legacy System Upgrades: Drop‑in replacement for aging 51304584‑100 boards in existing TDC3000/TPS installations.

Compatibility Note

• System Compatibility: Honeywell TDC3000/TPS (requires EPDGP/EPDG2 gateway node; LCN network mandatory)

• Replacement: 51304584‑200 → 51304584‑300 (current production model)

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

• Key Difference (100 vs 200):

  • 51304584‑100: Standard temperature (‑20°C to +70°C), basic surge protection

  • 51304584‑200: Extended temperature (‑25°C to +75°C), 2500 VAC surge immunity, UV‑resistant conformal coating