51400667-100 Honeywell TDC 3000 Enhanced LCN 20 Interface Board

Product Overview

The Honeywell 51400667-100 is an Enhanced LCN 20 Interface Board for the Honeywell TDC 3000 distributed control system. It serves as the communication gateway between the Local Control Network (LCN) and connected process control modules, enabling deterministic data exchange across the DCS architecture.

Key Specifications

• Manufacturer: Honeywell
• Part Number: 51400667-100
• Product Type: LCN 20 Interface / Communication Board
• System Compatibility: Honeywell TDC 3000, TPS
• Network: Local Control Network (LCN)
• Function: LCN communication and node interface
• Form Factor: PC Board for chassis installation

Applications

• LCN node communication in TDC 3000 systems
• DCS network expansion and retrofit projects
• Integration of process managers with operator stations

FAQ

Q: What is the difference between 51400667-100 and 51400668-100?
A: The 51400667-100 is the LCN interface board, while the 51400668-100 is the WDC 20 Controller Module. They work together but serve different functions.

Q: Can this board be used in redundant LCN configurations?
A: Yes, it supports redundant LCN architectures when paired with appropriate redundancy modules.

Q: Is firmware upgrading required?
A: Check the current system firmware revision; some LCN boards may require matching firmware levels for proper communication.

Installation Guide

1. Power down the chassis and wear an ESD wrist strap.
2. Insert the 51400667-100 board into the designated LCN slot.
3. Secure the board with retaining screws.
4. Connect LCN coaxial or fiber cables per the TDC 3000 wiring manual.
5. Power up and verify LCN node status via the system diagnostic display.

Selection Tips

• Verify your LCN topology (coaxial vs. fiber) before ordering cable accessories.
• Confirm chassis slot availability; LCN boards typically require specific slot positions.
• For enhanced performance, pair with the 51400668-100 WDC controller.
• Document node addresses before replacement to simplify reconfiguration.