1. General Information

• Model: 51304540100 (51304540-100)

• Brand: Honeywell

• Type: LCNE2 (Local Control Network Interface) Paddle Board, PC Board Assembly

• System Compatibility: Honeywell TDC 3000 / Experion PKS DCS (LCN network)

• Alternative No.: LCNE2, 51304538-100 (related)

• Form Factor: Plug‑in paddle card (PCB)

• Mounting: DCS rack slot / backplane mounted

• Weight: Approx. 1.0–1.1 kg

• Dimensions: ~267 × 178 × 51 mm

• Status: Discontinued (replaced by XLCNE2)

2. Features & Functions

• LCN Communication: Interface between LCN (Local Control Network) and rack I/O/control modules

• Data Processing: High‑speed LCN message handling, protocol conversion, and data buffering

• LED Indicators: 3 onboard LEDs for power, activity, and fault status

• Redundancy Support: Works in redundant LCN configurations for high availability

• Diagnostics: Built‑in fault detection for communication, power, and hardware issues

• Hot‑Swappable: Online replacement without system shutdown

3. Technical Specifications

• Power Supply: 5 VDC / 24 VDC (backplane powered)

• Power Consumption: ≤ 3 W

• Communication: LCN (Local Control Network), proprietary Honeywell protocol

• Operating Temperature: 0°C ~ 60°C

• Storage Temperature: -40°C ~ +85°C

• Relative Humidity: 5%–95%, non‑condensing

• Certifications: CE, UL, CSA

• Revision: Rev D (common)

4. Applications

• Process Industries: Petrochemical, power generation, metallurgy, water treatment

• System Role: LCN network interface for TDC 3000/Experion DCS, connects controllers and I/O to LCN

• Key Benefits: Reliable LCN communication, robust diagnostics, seamless DCS integration

5. Matching Accessories

• DCS system rack and backplane

• 5 VDC / 24 VDC power supply

• LCN communication cables

• I/O modules and control nodes