Product Overview

Basic Information

• Part Number: 51305517100 (51305517‑100)

• Module Type: LCNP‑4 Control Network Processor Board

• Compatible Systems: Honeywell TDC3000, TPS, Experion PKS

• Manufacturer: Honeywell

• Weight: Approx. 0.28 kg (0.62 lb)

• Status: Discontinued (new/remanufactured/used units available)

• Certification: CE, UL, CSA

Technical Specifications

• Processor: LCNP‑4 dedicated network processor (20 MHz)

• Memory: 16 KB onboard RAM

• Communication: LCN (Local Control Network), redundant A/B ports; RS‑485 interface

• System Bus: TDC3000 I/O chassis backplane

• Power Supply: 5 VDC (±5%) from backplane

• Operating Temperature: ‑40°C to +85°C (‑40°F to +185°F)

• Storage Temperature: ‑40°C to +85°C (‑40°F to +185°F)

• Humidity: 5%–95% RH, non‑condensing

• Dimensions: Standard TDC3000 board size (≈ 230 mm × 120 mm)

Key Features

1. LCN Network Core Control: Manages LCN data routing, node addressing, and communication scheduling for up to 64 nodes.

2. Redundant Communication: Dual LCN‑A/B ports support automatic failover, ensuring uninterrupted network operation.

3. High‑Speed Processing: 20 MHz LCNP‑4 processor delivers low‑latency real‑time data handling and control execution.

4. Onboard Diagnostics: LED indicators for power, run, and fault status; supports TDC3000 system diagnostic tools.

5. Robust Industrial Design: Withstands vibration, electrical noise, and harsh temperature environments.

6. Easy Integration: Hot‑swappable (with ESD precautions) and compatible with standard TDC3000 5/10‑slot chassis.

Applications

• Industries: Power generation, petrochemical, oil & gas, pulp & paper, metallurgy, pharmaceuticals.

• System Role: Primary LCN communication and control processor for TDC3000/TPS DCS.

• Use Cases:

  • Real‑time data exchange between LCN nodes (controllers, workstations, I/O modules).

  • Coordination of redundant LCN networks for high availability.

  • Execution of network management, diagnostic, and control functions.

Installation & Wiring

1. ESD Precautions: Wear anti‑static wristbands and use ESD‑safe work surfaces.

2. Power Off: De‑energize the I/O chassis before inserting or removing the board.

3. Chassis Installation: Insert into an available slot and secure with mounting screws.

4. LCN Wiring: Connect shielded twisted‑pair cables to LCN‑A/B ports; follow Honeywell wiring standards.

5. Configuration: Use TPS/TDC3000 engineering tools to set network parameters and redundancy options.

Maintenance

• Periodic Inspection: Check LED status, cable connections, and chassis backplane power.

• Cleaning: Remove dust with a dry, soft cloth; avoid liquid cleaners.

• Replacement: Use only original or Honeywell‑authorized replacement parts.

• Fault Handling:

  • Verify LCN cable integrity and termination.

  • Check 5 VDC backplane power supply stability.

  • Use TDC3000 diagnostics to identify board or network faults.

Safety Notes

• Perform all wiring and maintenance with chassis power disconnected.

• Operate within rated temperature and humidity limits.

• Unauthorized modification or disassembly is prohibited.

• Comply with site ESD and safety procedures.